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SmartwatchRadar

Best Smartwatches for Sleep Tracking

Watches and bands that score each night and track heart rate variability while you sleep.

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109 smartwatches

What makes a good sleep tracker

Every watch here gives a sleep score and tracks heart rate variability (HRV), the overnight signal most recovery features are built on. Many also track skin temperature and breathing rate.

Comfort and battery matter as much as sensors: a light watch or a screen-free band is easier to sleep in, and a long battery means you don’t miss nights while it charges.

Frequently asked questions

Can a smartwatch detect sleep apnea?

A few can flag signs of possible sleep apnea in some countries. Others only track blood oxygen at night. Neither replaces a sleep study.

Is HRV worth tracking?

Yes, as a trend. A drop in your usual overnight HRV often points to stress, illness or poor recovery before you feel it.

Is a smartwatch comfortable to sleep in?

Smaller, lighter watches and bands are the easiest to wear in bed. Check the weight and thickness rows, or look at a slim fitness band or screen-free band.