Technologies

We’re All Stressed, and Your Next Wearable Will Know It

Your wellbeing was a big focus at CES. Companies showed off smartwatches and fitness bands aimed at tracking your mental health.

Wearables can already track a dizzying number of bodily statistics, from heart rate to blood oxygen levels and skin temperature. If the new devices shown at CES 2023 are any indication, the next wave of smartwatches and wristbands aim to gain a better understanding of your alertness, fatigue and stress levels, too.

Watchmaker Citizen and smaller brands like BHeart and Nowatch have all announced new wearables that claim to pay close attention to your mental wellbeing. The shift toward stress tracking isn’t necessarily new, as I wrote in September when covering Fitbit’s Sense 2 and the Happy Ring. But the announcements at CES suggest that tech companies are interested in monitoring other factors that play into mental wellness.

The launches come as stress has been on the rise in the US because of factors like political divisiveness and inflation in addition to the pandemic, according to a survey conducted by the Harris Poll on behalf of the American Psychological Association.

«Modern life was hard enough with constant technology and ever-present communication and the pace of life,» Dr. Debra Kissen, CEO of the Light On Anxiety Treatment Center, which specializes in cognitive behavioral therapy services, previously said to CNET. «And then throw in a pandemic, and I think it really brought mental health concerns that were always there undeniably to the surface.»

This recent interest in exploring the link between physical and mental wellness also comes as annual smartwatch upgrades aren’t as pivotal as they used to be. Now that smartwatches have matured and the problems that plagued early devices have been addressed, companies large and small are searching for what’s next.

Citizen says its CZ Smart watch can gauge alertness and fatigue

Citizen says its new CZ Smart watch uses tools built based on research from the NASA Ames Research Center Fatigue Countermeasures Laboratory to assess fatigue and alertness levels. One of the biggest features that separates it from other wearables is its Alert Score, which it generates after you take the Alert Monitor test in Citizen’s YouQ wellness app. That test is based on the Psychomotor Vigilance Test that NASA has used to assess astronauts’ alertness.

The watch also wants to help you understand whether you’re a morning or evening person by analyzing your sleep patterns and Alert Scores. The overall goal is to combine these readings with more traditional metrics like heart rate and activity to make suggestions about how to address fatigue and increase your alertness. The «casual» finish starts at $350 (roughly 290, AU$520), while the «sport» edition starts at $375.

The BHeart band is a stress tracker you can attach to a regular watch

Health tech company Baracoda’s BHeart band grabbed headlines for its self-charging design that the company claims uses motion, body heat and sunlight to power itself. But the wristband is also another example of a new wearable attempting to provide mental health insights in addition to tracking physical metrics.

It claims to calculate stress management readings using heart rate variability. The app may suggest that users take a walk or do some yoga to relax based on those readings. Since it’s a watch band and not an actual watch, you can also wear the BHeart strap with any standard watch that has a lug width of 18 to 22 centimeters. The band starts at $100 and launches in April.

The Nowatch claims to estimate stress and cognitive performance

If you couldn’t tell from the name alone, the Nowatch isn’t a watch. It’s a screenless wellness tracker that claims to measure stress and cognitive performance.

The company worked with Philips on sensors that can measure electrodermal activity — or changes in sweat — to estimate stress levels. Fitbit uses similar technology in its Sense and Sense 2 devices. Users can also press the crown on their watch to mark specific stressful moments so that the watch can log it within the app. That sounds a bit different than Fitbit’s approach with the Sense 2, which can automatically flag potential signs of stress in addition to performing on-demand stress readings.

But one of the Nowatch’s more unique offerings is its Predicted Cognitive Zone feature, which the company says can provide insight on the wearer’s cognitive performance based on their physical state.

The Nowatch starts at $499, although the company is temporarily selling it for $369 until Jan. 9.

The next step for wearables

It took years for smartwatches, smart rings and fitness bands to turn sleep and activity data into meaningful insights that actually feel useful. Now, companies are seemingly setting their sights on addressing other factors that impact our health like stress, burnout and lack of sleep.

In addition to the new devices at CES, Fitbit debuted the second generation of its Sense smartwatch last fall — which doubles down on the stress tracking tech it introduced in the first model. Polar also announced the Ignite 3 watch in November, which claims to pinpoint the time of day in which you’ll be most alert based on your sleep cycles. Biogen announced in 2021 that it was collaborating with Apple on a research study to investigate the role that the Apple Watch and iPhone could play in monitoring cognitive performance.

Of course, it’s important to remember that these are just claims for now. It’s impossible to know whether these tools are accurate or useful without using them. The devices also arrive at a time when there’s increased awareness and scrutiny over the amount of data that tech devices gather about their users.

Dr. Charles A. Odonkor, assistant professor at the Yale University School of Medicine, also previously told CNET that changes in bodily markers like heart rate, perspiration and blood pressure may not always indicate stress and could be a sign of other conditions.

Still, the arrival of devices like these suggest that the next frontier for wearables could be about much more than just motivating you to hit the gym.

Technologies

Google Says Gemini Will Now Be Able to Identify AI Images, but There’s a Big Catch

You can now ask Gemini if an image is made with Google’s AI.

Google’s betting invisible AI watermarks will be just as good as visible ones. The company is continuing its week of Gemini 3 news with an announcement that it’s bringing its AI content detector, SynthID detector, out of a private beta for everyone to use.

This news comes in tandem with the release of nano banana pro, Google’s ultrapopular AI image editor. The new pro model comes with a lot of upgrades, including the ability to create legible text and upscale your images to 4K. That’s great for creators who use AI, but it also means it will be harder than ever to identify AI-generated content.

We’ve had deepfakes since long before generative AI. But AI tools, like the ones Google and OpenAI develop, let anyone create convincing fake content quicker and cheaper than ever before. That’s led to a massive influx of AI content online, everything from low-quality AI slop to realistic-looking deepfakes. OpenAI’s viral AI video app, Sora, was another major tool that showed us how easily these AI tools can be abused. It’s not a new problem, but AI has led to a dramatic escalation of the deepfake crisis.

That’s why SynthID was created. Google introduced SynthID in 2023, and every AI model it has released since then has attached these invisible watermarks to AI content. Google adds a small, visible, sparkle-shaped watermark, too, but neither really help when you’re quickly scrolling your social media feed and not vigorously analyzing each post. To help prevent the deepfake crisis (that the company helped create) from getting worse, Google is introducing a new tool to use to identify AI content.

SynthID Detector does exactly what its name implies; it analyzes images and can pick up on the invisible SynthID watermark. So in theory, you can upload an image to Gemini and ask the chatbot whether it was created with AI. But there’s a huge catch — Gemini can only confirm if an image was made with Google’s AI, not any other company’s. Because there are so many AI image and video models available, that means Gemini likely isn’t able to tell you if it was AI-generated with a non-Google program.

Right now, you can only ask about images, but Google said in a blog post that it plans to expand the capabilities to video and audio. No matter how limited, tools like these are still a step in the right direction. There are a number of AI detection tools, but none of them are perfect. Generative media models are improving quickly, sometimes too quickly for detection tools to keep up. That’s why it’s incredibly important to label any AI content you’re sharing online and to remain dubious of any suspicious images or videos you see in your feeds.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

For more, check out everything in Gemini 3 and what’s new in nano banana pro.

Technologies

Nano Banana Pro Is Here: All the Changes in Google’s Popular AI Image Tool

You can dial your AI images up to 4K, thanks to Gemini 3. Less good is the ability to remove the AI watermarks.

The newest version of Google’s AI image model is here, thanks to Gemini 3. Whether you choose to call it by its official name (Gemini 3 Pro Image) or its better-known nickname (nano banana pro), this model uses Gemini’s «deep thinking» feature to create better content.

Nano banana pro promises to be more capable, specifically with generating legible text, using up to 14 reference images and creating images in resolutions up to 4K.

Nano banana pro is available now, rolling out globally in the Gemini app. In Gemini, select «Create images» (with a 🍌 emoji) and switch your model to the Thinking model (located on the right side of the prompt window).

You can use nano banana pro for free, but you will hit a generation limit faster than paying Google AI subscribers. Those plans start at $20 per month. You’ll be automatically switched back to the original model once you’ve used up your credits. The model is also available in the Gemini API, Google AI Studio and Flow.

Inside the new nano banana model

AI image generators have notoriously struggled to create clear text; mangled words have been clear signs that an image was created with AI. OpenAI’s GPT-Image-1 was one of the first models to make significant progress in fixing this, but CNET’s testing showed it wasn’t able to reliably create readable text.

Google says nano banana pro is supposed to be better at this — so good that you can use the new model to create infographics, relying on Gemini’s integration with Google Search (and Search’s AI Mode for paying Pro users) to aid the process.

You might’ve noticed that none of the images made with nano banana pro have Google’s diamond-shaped watermark, which usually denotes that it was made with AI. That’s because Google is introducing a new way for its highest-paying subscribers (those paying $250 per month for the Ultra plan) to remove those watermarks. Even though it’s restricted to that top-tier plan, it’s already extremely difficult to tell if something was created with AI. Fewer watermarks won’t help. Google says Gemini will be able to identify any images made with its AI because of its SynthID, an invisible watermark attached to its AI-generated content. So in theory, you can upload an image to Gemini and ask whether it’s real or made with Google’s AI. We’ll have to wait and see how well it actually works.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

The original nano banana model, Gemini 2.5 Flash Image, was released this summer. Early testers thought the capabilities were, well, bananas. Throw in a series of fruit-themed teasers from Google executives, and the model quickly became best known by its nickname, nano banana. Its popularity soared in the following days.

One of the things fans liked about the original nano banana was how well it maintained character consistency. Meaning nano banana was able to edit your existing photos without distorting the characters or people in them. CNET’s hands-on testing found this was true, but there were still obvious AI slip-ups. The new model might eliminate some of those errors.

It’s been a big week for Google as it dropped a major update to its AI system, Gemini 3. The new models are rolling out now, aiming to give Gemini users a smarter, less sycophantic experience.

For more, check out how to write the best AI image prompt and the best AI image generators.

Technologies

Apple’s New iPhone Grip and Stand Puts Accessibility at the Forefront

The Hikawa Phone Grip and Stand was designed with input from people with a range of disabilities that impact dexterity, grip and hand control.

On Thursday, Apple added a new iPhone accessory to its online store: the Hikawa Phone Grip and Stand. It’s an adaptive, ergonomic accessory that was designed using input from people with a range of disabilities, including ones affecting dexterity, grip and hand control.

The $69.95 Hikawa Phone Grip and Stand is MagSafe compatible, and functions as both a stabilizing grip and a vertical or horizontal stand for propping up an iPhone. It’s made of silicone and has a triangular shape, with curved ridges along its outside and a hole in the center. The accessory is designed to cater to people with a range of motor skills, muscle strength and grip tension, as well as those who use an iPhone with one or no hands.

You can choose from a greenish-yellow chartreuse or a color Apple calls «crater,» which is gray with white and black specks. The accessory is available for a limited time on Apple’s online store in the US.

The grip was designed by Bailey Hikawa in Los Angeles. Hikawa has also made cases for the iPhone, which are bold and eccentric, with brightly colored knobs — a little like wrapping a smartphone in modern sculpture. This is the first MagSafe accessory she’s created.

Earlier this year, Apple added a host of new accessibility features to its products, including Braille Access for note-taking, Live Captions on the Apple Watch and Head Tracking for controlling an iPhone or iPad with head movements.

Unrelated to accessibility, one of Apple’s latest accessories has been getting plenty of attention: the iPhone Pocket, a $230 crossbody pouch for your handset.