We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black lightweight sleep band worn on the upper arm

Garmin

Garmin Index Sleep Monitor S-M wearable technology

SKU CH-M05M-1SCVE

Lightweight upper-arm band tracks sleep score, stages, HRV and skin-temperature metrics for up to seven nights per charge

  • Product colorBlack
  • Product typeActivity Tracker
  • Overall width1.6
  • Upper-arm design stays comfortable all night
  • Sleep score, stages and HRV status tracked
  • Up to 7 nights of battery life
  • Skin-temperature data improves menstrual-cycle insight
  • Syncs with Garmin Connect for combined health view

Smart sleep band S-M

The Garmin Index Sleep Monitor is a lightweight activity tracker worn on the upper arm. It captures sleep-tracking and recovery metrics such as sleep score, sleep stages and HRV status. Advanced women’s health tracking uses skin temperature for period predictions and ovulation estimates. Up to seven nights of battery life are provided.

Simple overnight setup

The band is designed for comfort throughout the night with a breathable fit in two sizes. Data syncs via the Garmin Connect app when paired with a compatible Garmin smartwatch worn during the day. Pulse Ox breathing variations require the feature to be available in your country and are not a medical diagnostic. All metrics are presented as close estimations.

For sleep-focused users

This monitor suits anyone who wants detailed nightly recovery insight without wearing a watch to bed. It is not intended for buyers who need medical-grade diagnostics, conception support or continuous daytime activity tracking. Users without a compatible Garmin smartwatch will miss the combined health dashboard.

How it compares

Measured against everything we stock in Smartwatches & Wearables, at today’s prices. Recalculated every night.

Price $142.99
Pricier than about 84% of the 2,527 comparable items (median $44.99).

Specifications

Product
Brand nameGarmin
Product colorBlack
Product typeActivity Tracker

Questions about this item

How do I know the Index Sleep Monitor is recording correctly after I put it on my upper arm?

The band captures sleep score, sleep stages and HRV status each night; after syncing with the Garmin Connect app you can review those metrics to confirm the device is working as intended.

What comes in the box with the Index Sleep Monitor and what must I buy separately?

The package includes the lightweight black smart sleep band in size S-M; a compatible Garmin smartwatch for daytime activity tracking and the Garmin Connect app are required separately for full insight.

Which size of the Index Sleep Monitor should I choose?

This listing is the S-M size designed for a comfortable upper-arm fit; if your arm circumference falls outside that range you would need the larger size option.

More in Smartwatches & Wearables

Similar items