Fitbit Air: The Apple Watch I Actually Wear to Bed

I wear my Apple Watch every day. I just can't sleep in it.

I ordered a Google Fitbit Air to fill that gap. The Apple Watch is a great daily driver — I'm not replacing it. But it's too bulky to wear comfortably through the night, so I never get sleep data from it. The Fitbit Air looks genuinely comfortable. It's a slim band with no protruding screen, and just looking at it I can tell it won't dig into my wrist the way a smartwatch does. I'm excited to get it.

Fitbit Air in multiple colorways including sage, periwinkle, cream, slate, and red — all showing the slim band form factor

What I'm Actually Trying to Learn

My goal isn't to generate data for Google. It's to find my own patterns — when I actually sleep, how often I wake, whether my habits match what I think they are. Sleep data is relatively low-value to advertisers anyway, which makes it one of the more defensible categories of health tracking.

A friend raised the point that sleep data isn't useful for vendors. That's probably true. Which means the only one who benefits is me.

Why Battery Life Actually Matters Here

Sleep tracking creates a charging problem the Apple Watch never solved. You charge the Apple Watch at night because it won't make it through the next day otherwise — Series 10 gets about 18 hours. That's the same window you need it on your wrist for sleep data. The two requirements conflict directly.

The Fitbit Air lasts 7 days. That resolves the conflict entirely. Charge it during a shower or a work session, and you have a full week before it needs attention again. Google also added 5-minute fast charging that gives a full day of battery — so even if you forget for days, you're back in business before leaving the house.

The charger is USB-C magnetic, which means no proprietary cable to track down. Any USB-C brick works.

Two Devices, Two Jobs

The Apple Watch handles everything during the day: notifications, workouts, payments. The Fitbit Air handles the one job the Apple Watch can't do because I won't wear it to bed.

That's not a knock on Apple Watch. It's a form factor problem, not a feature problem. A sleep tracker you don't wear is just a watch with a sleep mode collecting no data.