Google Fitbit Air Review: Barely There, Always Running | WIRED

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Rating:8/10

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WIRED

Lightest, most comfortable Fitbit yet. Full suite of wellness metrics across fitness, sleep, and health. Customizable and user-controlled app experience. AI Health Coach adds motivational value.

TIRED

Automatic activity detection can misclassify workouts. AI Health Coach sometimes defaults to shallow prompts. Overemphasis on proprietary Google scores.

After two weeks with the new Fitbit Air, what's most remarkable is how little you notice it. At just 12 grams with the band attached, it's the lightest Fitbit to date, so unobtrusive it fades into your life while actively logging it. It doesn't announce itself, prompt you, or interrupt; it simply stays on your body, collecting health data in the background.

The Air is the most complete expression yet of Google's vision for ambient health: always-on tracking that never demands attention. That's both its appeal and its drawback. For individuals who want structure and gentle guidance, it functions as a low-maintenance accountability partner. For those who prefer health tracking to episodic rather than continuous, it can feel like a step toward a future where your body is constantly translated into data.

Designed to Be Forgotten

Photograph: Boutayna Chokrane

This isn’t Fitbit’s first screenless tracker. Longtime users may remember the discontinued Fitbit Flex, the company’s original display-free wristband from 2013, which launched at the same $99 price as the new Air. But this is the first screenless Fitbit since Google’s acquisition in 2021, and the refinements are obvious the moment you put it on.

The Air lands as one of the most affordable devices in Google’s tracker lineup. It’s sleeker and more comfortable than its predecessors, while remaining equally approachable for elite athletes and anyone trying to foster healthier habits. The most obvious advantage is weight. Google says it’s 20 percent lighter than the discontinued Luxe, and compared to bulkier competitors like Whoop’s latest bands—which weigh closer to 27 grams—the 12-gram Air is almost imperceptible on my slim wrist.

The inevitable comparison here is Whoop, but Fitbit’s advantage isn’t only weight. I’ve found Whoop’s attachment system maddening, with metal clasp pegs that loosen, detach, or occasionally pop open while adjusting the fit. The Air is much simpler. The sensor stays put, the band snaps into place without any fiddling, and swapping straps takes seconds. Most importantly, I never worried that the tracker might fall off somewhere during the day.

Photograph: Boutayna Chokrane

The Air ships with the default Performance Loop Band, a lightweight woven strap made from recycled materials with a micro-adjustable Velcro closure. It’s soft and breathable. For an additional $30, you can opt for the special-edition band designed in collaboration with NBA champion Stephen Curry, who is also a performance adviser for Google's AI Health Coach. Google also sells an Active Band separately, a sweatproof silicone strap for workouts that is easy to wipe down, and the Elevated Modern Band, which gives the Air a jewelry aesthetic. I found all of them comfortable, but I ended up using the Performance Loop most days. The Air is meant to stay on all day, adapting to your life rather than being constantly taken off or on.

You can wear a smartwatch with a screen alongside the Fitbit Air or switch between them without disrupting your data history, but the caveat is that the smartwatch needs to be the Google Pixel Watch, at least for now. Google says broader compatibility with other watches will come later. The nice thing is you can enjoy your fancy mechanical watch collection and wear the Fitbit Air on the other hand, with no one the wiser that you're wearing a fitness tracker.

Photograph: Boutayna Chokrane

The battery lasts up to seven days, which is standard for most Fitbits. A full charge from zero takes about 90 minutes, and just five minutes plugged in gets you roughly a full day of use. Its quick-charging capability comes in handy before a workout, a travel day, or going to bed. However, the charger is proprietary, so try not to lose it (maybe grab a spare).

Because there’s no screen, checking battery life isn't very intuitive. You can double-tap the top of the sensor to check the status, though I sometimes had to try more than once to get it to respond. A tiny LED on the side blinks white when the battery is above 20 percent, blinks red when it’s below 20 percent, and stays solid red when you’ve fully run out of juice. The Google Health app sends a notification when you’re down to about a day of battery life, and the tracker vibrates once it dips below 20 percent.

Ambient Computing

Since there's no screen, muc