Garmin Index Sleep Monitor Smart Sleep Band L-XL 1.6

Upper-arm sleep band

This lightweight Garmin band wraps around the upper arm to track sleep through the night. It captures sleep score, sleep stages, heart-rate variability and total rest duration as close estimations. Breathing variations are monitored using Pulse Ox where available. Skin-temperature data supports advanced women's health tracking for cycle predictions and ovulation estimates. Up to seven nights of battery life are possible between charges.

Replaces wrist-based tracking

Moving the sensor from the wrist to the upper arm can improve comfort for people who dislike wearing a watch in bed. The change is worth it when wrist wear disturbs sleep or when skin-temperature consistency matters for cycle insights. Data still flows into the same Garmin Connect ecosystem used by compatible daytime smartwatches. No medical diagnosis or contraception guidance is provided by any metric.

Suits sleep-focused users

The band fits adults who want nightly recovery data without a watch on their wrist. It works best for those who already use Garmin Connect and can accept estimation-level accuracy. Buyers needing clinical-grade diagnostics, real-time alerts or continuous daytime activity tracking should look elsewhere. Pulse Ox functionality may be unavailable in some countries.