Sleep tech
Sleep trackers
Smart rings, bands and mats that track sleep, compared on sensors, subscriptions and price.
WHOOP
WHOOP 5.0
A screen-free wrist or bicep band that tracks sleep, recovery and strain; the hardware only comes bundled with a required membership that starts at $199 a year.
from $199 at WHOOP (annual membership, device included)
Withings
Withings Sleep
An under-mattress pad that tracks sleep stages, heart rate, and snoring without any wearable, plugged into an outlet by the bed.
from $199.95 at Withings
RingConn
RingConn Gen 3
A no-subscription smart ring that tracks sleep, heart rate, and SpO2 for about two weeks per charge.
from $349 at RingConn
Oura
Oura Ring 5
A titanium smart ring that tracks sleep stages, heart rate, temperature, and readiness, but requires a paid monthly membership to unlock most of its insights.
from $399 at Target