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Google Pixel 7 review: A bargain that’s impossible to beat

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Google Pixel 7

Despite only offering incremental improvements over the Pixel 6, Google has once again succeeded in distilling flagship photography and software features down to a price point its rivals simply can’t match. At just $599, the Pixel 7 is without doubt the best value phone on the market.

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Catering to both high-end and budget-conscious consumers is no easy task, but 2021’s Pixel 6 and Pixel 6 Pro did just that, revitalizing Google’s hit-and-miss smartphone series in the process. With the Google Pixel 7, Mountain View is once again looking to hit the sweet spot between flagship specs and experiences without breaking the bank. With a price that severely undercuts its closest rivals from Samsung and Apple, does Google make a few too many compromises, or is this the smartphone bargain of the decade? Let’s find out in Android Authority’s Google Pixel 7 review.

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About this Google Pixel 7 review: I tested the Google Pixel 7 over a period of seven days. The unit was provided by Google for this review.

 

What you need to know about the Google Pixel 7

Google Pixel 7 home screen in hand

Robert Triggs / Android Authority

  • Google Pixel 7 (8GB/128GB): $599 / £599 / €649
  • Google Pixel 7 (8GB/256GB): $699 / £699 / €749

Google’s Pixel 7 can be politely thought of as building firmly on the Pixel 6 series, in so far as very little has changed aside from a slightly modified design. That’s not necessarily a bad thing though, as Google moves to refine rather than revamp a smartphone formula it’s finally found some level of success with. With the Pixel Watch now also in play, Google’s latest launches aim to cement the company as a major-league hardware player in the Android ecosystem — with the Pixel 7 acting as the simplest entry point for newcomers.

As the successor to 2021’s value-oriented Pixel 6, the Pixel 7 enters the market with a price tag that screams typical upper-mid-range phone. But don’t let that deceive you. The Pixel 7 is imbued with the same machine learning Tensor G2 smarts, impressive 50MP main camera, and even the same overall design language and build quality as the brand’s more expensive Pro variant. In fact, the two phones are more alike than they are different, at least when it comes to all-important software capabilities. The exception is that the Pro continues to be the model of choice for those after Google’s best camera package, but more on that later.

You’ll have seen a lot of the Pixel 7 before, but there are some new twists.

The Pixel 7 does make a few other cuts to the Pro’s formula to hit the price point, too. There’s less RAM in the regular model, down to 8GB from 12GB, but that won’t make a meaningful difference outside of extreme multitasking. The Pixel 7 comes in two memory options, 128GB and 256GB; eschewing the 512GB maximum capacity of the Pro variant. With no microSD card support either, the phone would have you rely on Google One cloud storage subscriptions should you need extra space beyond the 256GB limit. Like its predecessor, the package is housed behind a similar 6.32-inch 90Hz FHD+ display but with a higher peak brightness of 1,400 nits. The phone also features familiar 21W wired and wireless charging capabilities, a main and ultrawide rear camera partnership, and a smaller 4,355mAh battery (down from 4,614mAh on the Pixel 6).

As is par for the course these days, Google forgoes a charger in the box. You’ll have to bring your own USB Power Delivery PPS-compatible plug if you want peak charging power. However, it does include a USB-C to USB-C cable, Quick Switch Adapter, SIM ejector, and necessary paperwork.

The Google Pixel 7 comes in Obsidian (black), Snow (white), and Lemongrass (yellow) colorways. Each of these has a different, complementary camera bar color to spice things up, but these options are definitely not as bold and colorful as the Pixel 6’s two-tone aesthetic. The Pixel 7 went on sale on October 13 in 17 regions throughout Europe, Asia, and North America. It’s available to buy from the Google Store and various major third-party retailers.

 

How is the new design?

Google Pixel 7 white back angled

Robert Triggs / Android Authority

As is the theme throughout this review, the Pixel 7’s design builds on the Pixel 6 while being careful not to damage the precious foundations. Google has kept its predecessor’s unique camera bar, tinkering with the look to retain as much of its now-established brand identity as possible. The extruding black glass camera bar is replaced by a metal accent housing with distinct camera cutouts. The edges are a magnet for debris and dust, but such is the price for a design that’s distinctly different from the corner-positioned cameras on other flagship devices.

The brushed metal frame wraps neatly around to the side chassis, which adds a touch of polish. You’ll find sturdy and satisfying buttons on the right-hand side, accompanied by the familiar USB-C and speaker ports on the bottom of the handset. The entire package is protected by Corning Gorilla Glass Victus (an upgrade over the Pixel 6, which opted for Gorilla Glass 6 on the rear) and an IP68 rating for dust and water resistance. It’s built to last and certainly feels like it; a solid achievement at this price. That said, the glass back is a fingerprint and smudge magnet. Either slap a case on it or get used to carrying microfiber cloths around with you.

The regular Pixel 7 has a flatter display than the Pro model, but that comes with chunkier bezels as a trade-off. Thankfully, the beautiful 6.32-inch OLED display remains usable in one hand, even without rounded corners. While smaller than the Pixel 6’s panel, the pixel density and screen-to-body ratio is higher. In fact, the device itself is smaller, thinner, and lighter than the Pixel 6. It’s not quite small enough to be considered compact like the Sony Xperia 5 IV, and it’s taller than the iPhone 14, but it will fit in a pocket with a case on much more comfortably than larger flagship phones.

Personally, I preferred the Pixel 6’s design, at least aesthetically. There’s something a little odd about the Pixel 7’s understated yet futuristic design that doesn’t quite work together for me. Maybe the black camera housing, metal, and gloss combo is a bit much, like a pinstripe suit paired with a plaid tie. But I can see how others may prefer the curved and metallic look over the Pixel 6’s solid glass camera bar. Either way, I do miss the additional fun two-tone color options that really helped make the Pixel 6 your own. Nitpicking aside, there’s no denying that the rebuild feels robust in the hand and it’s a little bit better built overall. It’s a welcome refinement, even if it might not be to everyone’s taste.

The Pixel 7’s redesign feels more robust in hand.

Move past the aesthetics, though, and you’ll find a few hidden improvements onboard. The Pixel 6’s dubious optical in-display fingerprint scanner has been fine-tuned and is now empirically more responsive than its predecessor. If you’re still unsure about this comparatively crude method of fingerprint scanning compared to high-end ultrasonic models, Google offers the option to use Face Unlock for the first time since the Pixel 4. Just be aware that, as it only uses basic imaging rather than 3D depth data, the Pixel 7’s Face Unlock feature can’t be used with banking apps or other secure biometric services. It’s simply there to quickly unlock your screen — something it does very well.

 

How does the camera hold up?

Google Pixel 7 camera housing

Robert Triggs / Android Authority

We’ve taken arguably far too many pictures with the Pixel 7 series across the Android Authority team, and we’re collectively convinced this is one of the best camera phones ever produced at this price. Whether it’s tough HDR lighting, shooting at night, or getting a bit more creative with Cinematic video, the Pixel 7 has you well covered. Broadly speaking, Google’s machine learning smarts continue to help its Pixel smartphones punch well above their price tag, making photography capabilities one of the chief reasons to pick up the Google Pixel 7. Just see for yourself in the gallery below or check out the full-res samples in this Google Drive folder.

Exposure, colors, and detail are all spot-on across a wide range of scenarios. That being said, the Pixel 7 misses out on the more flexible shooting features of its bigger sibling. It’s stuck with a fixed-focus ultrawide camera (so you don’t get the Pixel 7 Pro’s macro mode), and the phone lacks a telephoto lens for long-range optical zoom.

In fact, the rear camera hardware is entirely unchanged from the Pixel 6, only the selfie camera has been upgraded to match the Pro’s 10.8MP resolution. So while we can’t help but love what Google has done here, we also can’t ignore that some of the same old gripes persist. This includes a comparatively limited 114-degree ultrawide field of view and occasional focus issues. Meanwhile, zoom quality only holds up to about 3x, despite the inclusion of Google’s Super Res Zoom machine learning smarts. Though admittedly, the fact it can take usable 3x zoom shots at all with no dedicated hardware is impressive.

While we’re being picky, there are a few areas in which the already superb Pixel 7 cameras could still be better. Very low-light snaps, for instance, can be a little grainy and noisy, particularly in darker areas. Portrait skin textures are still too harsh, owing to the mode’s crop factor, while skin tones can be too warm, and bokeh edge detection still isn’t perfect either, especially when it comes to fine hairs and complex background separation. The selfie camera is a bit softer, which would usually be a complaint but actually helps even out the Pixel’s oversharpening, resulting in marginally better-looking portraits.

As for shooting modes, Action Pan and Long Exposure remain; they’re suitably fun to use but likely to be quickly forgotten about. Night Sight is 2x faster to capture images than last year, but the quality is pretty much the same. Overall, the photography feature experience isn’t meaningfully elevated from the admittedly already solid Pixel 6. Most of the fresh photography magic is reserved for after you’ve taken the shot, but we’ll get to that in the next section.

That said, the Pixel 7 has a new trick up its sleeve for shooting — Cinematic video. This adds the same artificial bokeh blur as Google’s Portrait mode to videos, though it’s limited to 24fps, a 1080p resolution, and can only be used with the main camera. At its best, the results are competitive with Apple’s Cinematic mode, but recent iPhones can shoot in 4K too and produce slightly sharper footage even at FHD. Both suffer from familiar software bokeh issues around hair edges, but Apple’s implementation is a lot better at ensuring consistent foreground and background separation. The Pixel wobbles in and out of focus far more regularly. If you’re more interested in standard videography, the Pixel 7 records 4K at 60fps from both lenses, can capture 10-bit HDR at 4K at 30fps, and offers rock-solid digital video stabilization.

The Pixel 7 is a functional rather than creative photography powerhouse, but it’s a powerhouse nevertheless.

Overall we’re sufficiently impressed with the Pixel 7’s photo and video capture features, but it isn’t without some compromises. Sadly, you can’t have it all on a budget. Google’s basic package lacks the fun of the Samsung Galaxy A53 5G with a dedicated macro lens or the telephoto credentials of the marginally pricier Galaxy S21 FE, though it trounces both as a point-and-shoot camera phone. Its dual cameras are also a similar setup to the more expensive iPhone 14, so Google’s affordable option is competitive in that regard, too. It’s also a step ahead of the budget Pixel 6a due to the superior main sensor.

 

Is Google’s software really that good?

Google Pixel 7 quick settings

Robert Triggs / Android Authority

After photography, Google’s “default” take on Android 13 is another stand-out reason to get your hands on the Pixel 7. With fully-fledged Material You theming and a smattering of Pixel-only features, series fans feel this is the definitive version of Android. It’s hard to disagree.

The ins and outs of Android are well documented, and the core experience feels very familiar. So let’s step back to look at the big picture. After years of disjointed services, Google is finally leveraging its broader ecosystem for its handsets, creating a cohesive experience for Pixel owners that’s arguably a cut above what you’ll find elsewhere in the Android ecosystem.

For instance, Photo Unblur, Magic Eraser, and Portrait Light — a simple editing tool used to alter the lighting around faces — combine to make the Pixel 7’s version of the Google Photos app an even more powerful platform for editing pictures, old and new. Machine-learning-enhanced Recorder and voicemail message transcriptions are handy, even if not likely to be universally useful features, while offline Google Assistant typing for GBoard returns and is snappier than ever thanks to the Tensor G2. Google’s AI smarts certainly help give the phone a unique and useful edge.

Google’s AI smarts gives the Pixel 7 a unique and useful edge.

Meanwhile, freebies like three months of 100GB Google One storage and YouTube Premium give you a bit more out of Google’s existing services just for being a Pixel customer. Of course, Google would love you to pay for these long-term too, but the point is that there’s a Google service within easy reach for virtually every need you might have, from work to play.

Unfortunately, other intriguing Pixel 7 features aren’t included out of the box. Clear Calling and a free VPN by Google One are scheduled for upcoming feature drops later in 2022. As great as Google’s feature drop idea is for long-term value, the unknown arrival dates of some features make it impossible to judge whether these are worth investing in at launch. Although some quick math suggests VPN savings alone could pay off a significant portion of the handset over five years of use.

Overall, the Pixel 7’s software is clean, intuitive, and useful — just what you want from a modern phone.

 

How powerful is the Tensor G2 chip?

Google Tensor G2 logo Pixel 7

Robert Triggs / Android Authority

Another what’s old is new again feature is Google’s Tensor G2 chipset. Sporting a very similar CPU arrangement to the first Tensor, day-to-day performance is still snappy enough for all your regular apps. Multitasking is a breeze, particularly when paired with the display’s 90Hz default mode. However, just like with the first generation, this isn’t a benchmark topping chip, which might leave performance enthusiasts a little underwhelmed.

Colleagues at Android Authority noticed the Tensor G2 can become a little warm when flipping through multiple apps or even watching videos for extended periods. However, I haven’t noticed the same propensity for heating up any more than any other phone I’ve used recently (though it is cooler in the UK this time of year). Most importantly, any heat buildup doesn’t seem to have a severe impact on performance.

With that in mind, gaming definitely causes the phone to perspire. The chip’s Mali-G710 MP7 GPU, although it’s newer, doesn’t provide an additional performance boost over the original Tensor chip’s graphics core, so it sits well down the graphics benchmarking pecking order. That said, we have noticed much improved sustained performance with the new graphics processor. Under extreme stress, the Tensor G2 makes up for its lack of peak performance and closes the gap between many Snapdragon 8 Gen 1 handsets. That bodes well for using the phone for protracted, intensive sessions on hotter days.

Benchmarks are one thing, but what about real-world gaming use? I logged a rock solid 60fps playing over an hour of Apex Legends and Call of Duty: Mobile with the graphics settings cranked up. The Tensor G2 certainly isn’t short on power for some of the more popular titles out there. The bigger uncertainty is how this chip will handle more demanding games a couple of years down the line, with the comparative lack of raw power suggesting it won’t keep up as well as today’s rival flagship chipsets. But then again, that’s not such a concern with a $599 price tag, and the Tensor G2 hums along just nicely for a mid-range processor — one that, lest we forget, is also pushing the boundaries of machine learning capabilities on smartphones.

Tensor G2 is not the fastest chip, but its machine-learning smarts power unique experiences.

With heat listed as a minor issue and a smaller battery onboard compared to the Pixel 6, you might be concerned about a knock-on for battery life. Thankfully there’s no such correlation. The Pixel 7 survived a day of heavy gaming, web browsing, and video watching and still made it to bed with 15% to spare. With lighter workloads, predominantly checking email and listening to music, I could comfortably make it through the day with half the moderately sized 4,355mAh battery to spare. Depending on your needs, you’re likely to see between a day or two’s worth of screen-on-time. This is good news because wired charging is painfully slow, even with a compatible USB Power Delivery PPS wall plug. The 21W charging takes a painstaking one hour and 41 minutes to full. You can hit 50% in 30 minutes, but that won’t be enough juice to take you through a full day with meaningful headroom.

That said, there are instances where you’ll see the phone chug down the battery more quickly, and it’s mostly when using the camera. Recording a 15-minute Cinematic video took 7% off the battery and heavy camera sessions using portrait, night sight, and other AI-infused modes chugged down a fair bit of juice. The brighter display certainly helps out in outdoor viewing, but can also take a bit of a chunk of your daily usage metric if cranked up for a long period of time. Overall though, the Pixel 7’s battery life is robust enough, but the charging power cap does let it down a bit.

 

Anything else?

Google Pixel 7 app drawer

Robert Triggs / Android Authority

  • Bluetooth audio: With no headphone jack, you’ll be reliant on the Pixel 7’s support for SBC, AAC, aptX, aptX HD, and LDAC Bluetooth audio codecs. There’s an LE Audio toggle in the Pixel 7’s developer settings, but we were unable to confirm if this is functional due to a lack of supported headphones.
  • Connectivity: Bluetooth 5.2, NFC, and Wi-Fi 6E round out a robust connectivity suite that will have you well covered for fast wireless data transfers and other connectivity needs. There’s no ultra-wideband (UWB) support here —that’s exclusive to the Pro model. Speaking of connectivity, the Pixel 7 seemingly addresses a major issue we saw with the Pixel 6, providing a much more robust data connection in congested locations.
  • Display: The panel’s color is excellent, and the resolution is sharp enough, making your snaps and HDR moves look sublime. The display’s 90Hz mode is plenty smooth even next to 120Hz rivals, but I only clocked it lowering the refresh rate to 60Hz. It’s not as battery-friendly as some of the ultra-low refresh LTPO panels we’ve seen.
  • Speakers: These speakers are plenty loud but aren’t as impressive as the Pixel 7 Pro’s setup. They’re upper-mid-heavy and lacking bass, producing a tinny quality on heavier tracks. Stereo separation isn’t brilliant, as the top speaker is hidden behind the display, but it’s fine enough to hear most of what’s going on in the mix.
  • Updates: Google promises a not-quite industry-leading three OS upgrades and five years of security patches for the Pixel 7. With Android 13 shipping out of the box, this means the phone will see core feature updates until Android 16 in 2026, followed by security patches for a further two years. Currently, only Samsung offers a better policy with its four years of OS upgrades. While it’d be fair to expect Google — the company behind Android — to at least be tied for the top spot, five years of security support is still pretty great.
  • 5G: US models from the Google Store, AT&T, and Verizon support mmWave and sub-6GHz 5G networks. Other regions, such as the UK and the rest of Europe, only support sub-6GHz bands. All regions sport a single-nano SIM and an eSIM.

 

Google Pixel 7 specs

Pixel 7
Display 6.32 inch
2,400 x 1,080 pixels
1,400 nits
90Hz
OLED
Processor Tensor G2
RAM 8GB
Storage
Power 4,355mAh Li-Ion
Wireless charging
Up to 72 hours of runtime with Extreme Battery Saver
Cameras

Rear
– 50MP main
1.2 μm, ƒ/1.85, 82-degree FoV
1/1.31-inch sensor
OIS and EIS

– 12MP ultrawide
1.25 μm, ƒ/2.2, 114-degree FoV

– Laser AF

Front:
– 10.8 MP
1.22 μm, ƒ/2.2, 92.8-degree FoV

Connectivity 2G, 3G, 4G, 5G
Bluetooth 5.2
NFC
Wi-Fi 802.11ax
Dimensions 155.64 x 73.16 x 8.7mm
Software
Android 13
Durability IP68

 

Value and competition

Google Pixel 7

Google Pixel 7

Robust build quality • Excellent camera results • Upgraded fingerprint scanner and modem

Value for money like no other.

At just $599, the Pixel 7 is without doubt the best value phone on the market.

Despite its budget-friendly $599 price tag, the Pixel 7 is every bit a competitor to the more expensive Apple iPhone 14 ($799 at Best Buy) and Samsung Galaxy S22 ($839.99 at Amazon). With image quality, video features, and a robust build that rival entry-level flagships from Apple and Samsung, the Pixel 7 series is an absolute steal by comparison. While these rivals have their own merits, they’re tough to recommend for $200 more.

There are similarly priced buys out there worthy of your consideration, too, of course. Samsung’s Galaxy A53 5G ($349.99 at Amazon) is more affordable still, offers long-term support, and has a 120Hz display and quad camera setup. However, it doesn’t offer the 4K/60fps video capabilities, high-tier performance, or main camera consistency you’ll get from the Pixel 7.

Apple iPhone 14 vs Google Pixel 7

Robert Triggs / Android Authority

If you’re happy to spend on the other side of the Pixel 7’s price tag, the Samsung Galaxy S21 FE ($699.99 at Samsung) nets you a 3x telephoto camera for more flexible photography, a marginally faster flagship-tier SoC, and a slightly swankier display. That’s not too bad for an extra $100, though it’s fairly dull in terms of design and, again, can’t match the Pixel 7’s primary shooter for photography.

It’s very difficult, if not impossible, to beat the Pixel 7’s value proposition.

For global audiences, the OnePlus 10T ($649.99 at Amazon) beats Google at the numbers game. Offering 150W super-fast charging, a triple camera setup with a macro lens, and a high-performance Snapdragon 8 Plus Gen 1 processor onboard. Even so, the Pixel 7 will absolutely better suit demanding photographers and will be supported a little longer than OnePlus’ promises of three major Android updates and four years of security patches.

Perhaps the best alternative options come from Google itself. We’ve discussed the differences between the Pixel 7 Pro ($899 at Amazon) and Pixel 7 at length, and while the former — itself a relative bargain compared to $1,000+ flagships — gets the best upgrades for Google’s seventh-generation phones, $300 is a lot of money to save. The Pixel 6a ($449 at Amazon), meanwhile, is even cheaper and retains a lot of Google’s software smarts, but loses out on a high refresh rate display and top camera hardware, and the battery life takes a slight hit.

Ultimately it’s very difficult, if not impossible, to beat Google’s value proposition.

 

Google Pixel 7 review: The verdict

Google Pixel 7 display outdoors

Robert Triggs / Android Authority

The Pixel 7 is a home run for Mountain View. With long-term software support, an expansive app and feature ecosystem, and solid performance, the Pixel 7 covers all the bases and then some for a price that’s $200 less than the competition. Furthermore, the camera package is excellent, on balance, and remains one of the leading reasons to dive into Google’s handset. But if that’s not enough, the prospect of future feature drops hints that the phone will only become better over time, just like the Pixel 6.

The only real criticism we can level is that the handset isn’t a meaningful improvement over the previous generation. Google has, thankfully, kept its price stagnant to reflect this. Although the addition of Tensor G2, stronger rear glass, a retooled fingerprint scanner, and a new selfie snapper are nice to have (not to mention the improved data reception), they’re not a reason to upgrade. The slow charging times and so-so speakers also take some polish off the handset, highlighting that Google had to retain some compromises to keep the price down.

Google’s Pixel 7 covers all the bases and then some, all while costing a lot less than the competition.

By comparison, the Pixel 7 Pro has seen a few more noteworthy upgrades than its little sibling, including a 5x periscope camera and a wider ultrawide camera that finally has autofocus. It also continues to boast a brighter 120Hz QHD display, marginally faster charging, and a notably bigger battery. Google has seemingly paid less attention to improving the regular Pixel 7 formula. Even so, these are all worthwhile compromises to save a considerable $300 over Google’s premium flagship.

Although those really into their photography will no doubt be (rightly) tempted by the Pro model, there’s a lot of phone to love with the Pixel 7, and it comes at a price that’s virtually impossible to regret. That makes the Pixel 7 incredibly easy to recommend, whether you’re looking for a phone to take you through a busy work day, handle gaming sessions on your commute, or snap great-looking pictures of your loved ones. Google’s affordable flagship can do it all.

 

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Nothing Ear And Nothing Ear (a) Earbuds Are 1st With ChatGPT Integration – Forbes

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London-based Nothing Tech has just launched new earbuds, two pairs, in fact. The Nothing Ear and more affordable Nothing Ear (a) have just gone on sale—you can read Forbes contributor Mark Sparrow’s review of both pairs here. And now, the company has announced a cool new feature: and industry-first integration with ChatGPT. It comes with strings, though.

The new earbuds have just been announced and are available to pre-order from nothing.tech now and go on sale from Monday, April 22. If you’re in London, and you want to be among the very first to get the earbuds, you can snap them up in the Nothing Store Soho a little bit sooner, from Saturday, April 20 (click-and-collect is available).

From launch, the company said, “it will enhance its overall user experience with industry-first ChatGPT integrations in its audio and smartphone products.”

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Nothing goes on that it wants “to advance consumer tech products’ transition to AI, as well as simplify and enhance the user experience.”

It means users will be able to pinch the earbud to directly speak to ChatGPT to ask questions and hear responses in the earbuds. Nothing is also introducing new elements to Nothing phones, such as widgets which make it easy to talk to ChatGPT on the handsets. Other features include being able to send screenshots directly to ChatGPT and a clipboard shortcut for sending text.

So, what are the catches?

Although the Bluetooth new earbuds will work with any iPhone or Android phone, and there are dedicated Nothing apps for each platform, the ChatGPT integration is more limited for now.

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The earbuds must be paired with a Nothing handset. From today, the feature works with the premium model, the Nothing Phone (2), providing it’s running the latest software. The earlier Nothing Phone (1) and more recent, more affordable model, Nothing Phone (2a) will need to wait for a software update, which Nothing says is “coming soon”.

Also coming in the future is compatibility with earlier Nothing earbuds, that is the Ear (1), Ear (2) and Ear (Stick).

The new earbuds are very keenly priced. Ear costs $149 (£129 in the U.K.), while Ear (a) is $99 (£99 in the U.K.). Both pairs have active noise-cancelling, which is not commonplace at this price point. The more expensive Ear has a wireless charging case and a feature to create a personal sound profile. Both pairs come in black and white finishes, with Nothing’s trademark transparent design in the earbuds and charging case. But the Nothing Ear (a) has an eye-catching extra: a tremendous yellow-finish option.

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U of T Engineering PhD student is working to improve the sustainable treatment of Ontario's drinking water – U of T Engineering News – U of T Engineering News

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Growing up in a small neighbourhood in Cameroon, Maeva Che (CivMin PhD student) was aware of challenges of accessing clean drinking water. 

“Experiencing that exposure to water issues and challenges with sustainable access to safe drinking water ignited my interest in water treatment,” Che says.  

Che’s drive to improve water quality around the globe brought her to the Drinking Water Research Group (DWRG) at University of Toronto’s Faculty of Applied Science & Engineering, where she is researching innovative solutions to address local water issues.  

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Che is working under the supervision of Professor Ron Hofmann (CivMin), who is a member of the DWRG. Her research focuses on removing unpleasant taste and odour compounds in Ontario’s drinking water by promoting the biodegradation of these compounds through granular activated carbon (GAC) filtration. 

The project is supported by a five-year Natural Sciences and Engineering Research Council of Canada (NSERC) Alliance grant called Advanced and Emerging Issues in Drinking Water Treatment. 

GAC filtration is a water treatment process that uses granular activated carbon, which is made from organic materials that are high in carbon, such as wood, coal or coconut shells. These materials are heated in the absence of oxygen through a process known as pyrolysis and prompted chemically or physically to produce the activated carbon. The activation enhances the material’s adsorption properties, making it productive to remove contaminants from water.  

While GAC filtration is an effective treatment process, its adsorptive capacity is limited. The adsorptive capacity of GAC is expected to become exhausted after about three years in service and drinking water treatment utilities must replace the GAC. Aside from the inconvenience, replacing GAC is costly.  

Che is working on alternative ways to remove contaminants using GAC filtration, specifically through biodegradation. When the filtration has been in service for a while, there is the growth of micro-organisms on the GAC, which can be useful for removing contaminants.   

PhD student Maeva Che works with filtration systems research at the Drinking Water Lab in the Department of Civil & Mineral Engineering. (photo by Galina Nikitina)

“Think of biodegradation as the useful bacteria on the GAC feeding on the contaminants in the water, thereby removing them,” says Che. 

“If the GAC has enough good bacteria that is biodegrading the compounds, the GAC may not need to be replaced when its adsorptive capacity becomes exhausted. This can extend the filter’s lifetime, resulting in cost benefits for treatment utilities.” 

In other words, biodegradation can potentially enhance the performance of GAC filters. 

Che and the DWRG will collaborate with water treatment plants to determine methods that can enhance the biodegradation of taste and odour compounds within their GAC filters.  

Currently in its initial phase, the project is taking place alongside the Peterborough Utilities Group’s drinking water treatment plant, where Che is conducting pilot-scale filtration studies with support from the Peterborough Utilities Commission. They plan to extend this research to other partner treatment plants in the future. 

Working with various water treatment plants across Ontario, Che will also assess the effectiveness of GAC filters in removing non-traditional taste and odour compounds, which are not commonly monitored. 

To achieve this, she’ll evaluate filter performance for two common taste and odour compounds — 2-methylisoborneal and geosmin — and eight additional non-traditional compounds that can cause taste and odour events. This involves collecting GAC and water samples from the plants and conducting lab-scale filtration tests, called minicolumn tests. This test, developed by the DWRG, allows to differentiate between adsorption and biodegradation in GAC filters. 

Minicolumn tests provide crucial insights into the performance of the GAC filters in terms of the adsorption and biodegradation of contaminants. To distinguish between these mechanisms, researchers use parallel minicolumns. One minicolumn operates under conditions where the biological activity of micro-organisms is suppressed, which isolates the adsorption process. The second minicolumn operates without biological suppression, allowing both adsorption and biodegradation to occur. 

“Many plants are unaware of their filters’ performance for other compounds, aside from the two common ones, that also contribute to taste and odour events in water. Our project, therefore, plays a crucial role in expanding the understanding of this,” Che says. 

Project partners include the Ajax Water Supply Plant and the Barrie Surface Water Treatment Plant.  

The DWRG is made of approximately 30 graduate students, post-doctoral fellows, research managers and associates who collaborate with local, national and international industry and government organizations to address a wide range of projects related to municipal drinking water. 

Che credits her experience as a master’s student with the research group as a major factor in her decision to pursue a PhD at the University of Toronto.  

“During my master’s degree with the DWRG, I worked on projects that improved drinking water quality, gaining hands-on experience at treatment plants. Seeing the results of my research reinforced my decision to pursue my PhD here,” Che says. 

Ultimately, Che hopes to make a significant impact in the field — and the DWRG provides opportunities to achieve this, with a supportive community of researchers and supervisors.  

“My goal is to continue researching and developing sustainable solutions for drinking water treatment that benefit communities in need,” she says. 

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Huawei's latest flagship smartphone contains no world-shaking silicon surprises – The Register

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When Huawei debuted its Mate 60 smartphone in mid-2023, it turned heads around the world after teardown artists found it contained a system-on-chip manufactured by Chinese chipmaker Semiconductor Manufacturing International Corporation (SMIC) using a 7nm process.

SMIC was thought not to be able to build that sort of thing. So while the Mate 60 didn’t differ markedly from every other modern smartphone, its very existence called into question the effectiveness of US-led efforts to prevent advanced chipmaking tech reach the Middle Kingdom.

Much speculation has therefore concerned what Huawei would deliver next, and this week the world got its answer – in the form of the Pura 70.

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Chinese media report that early users of the device have posted details of its innards, naming the SoC as Kirin 9010 with four efficient cores running at 1.55GHz, half a dozen performance cores at 2.18GHz, and a couple of high-performance cores zipping along at 2.30GHz. All cores are Arm v8. A third-party spec sheet suggests it’s a 7nm chip – meaning Chinese chipmakers appear not to have made another unexpected advance.

Early tests suggest it outperforms the Kirin 9000 found in the Mate 60, but independent assessments are yet to emerge. The crowdsourced evaluations currently available are sometimes dubious.

What we can say with confidence is that the Pura 70 has a 6.6-inch OLED display with 120Hz refresh rate and resolution of 2,760 x 1,256. It has 12GB RAM aboard, and buyers can choose from 256GB, 512GB, or 1TB of storage.

The three rear-facing cameras on the base models can capture 50, 12, and 13 megapixels apiece.

The Pura range derives from Huawei’s P-Series handsets that stretched from the midrange to the low-end of premium, but are now focussed – pardon the pun – on photography enthusiasts. The device comes on four variants, each priced to match the four editions of Apple’s iPhone 15.

The screen on the high-end “Ultra” model grows to 6.8 inches and 2,844 × 1,260 pixels, with two rear cameras that shoot at 50 megapixels and one at 40. One of the 50MP snappers is retractable, to enhance its zooming powers.

Importantly, all models of the Pura 70 run HarmonyOS 4.2 – Huawei’s not-Android operating system.

China is all-in on HarmonyOS as the nation pursues indigenous alternatives to Western tech. In recent weeks Chinese media and government agencies have noted the growing proliferation of native HarmonyOS apps, trumpeting that developer enthusiasm for the platform means local buyers now have a more patriotic alternative.

That alternative appears to be welcome: after the debut of the Mate 60, analyst firm IDC saw Huawei’s smartphone market share improve by 36.2 percent. ®

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