Garmin - Index Sleep Monitor Size: S/M - Black - (2025)
About this product
How did you sleep? Find out with the Index Sleep Monitor. Comfortable, lightweight and worn on the upper arm, this smart sleep band can capture sleep-tracking and recovery metrics — including sleep score, sleep stages and HRV status — so you can better understand how your body recovers each night (data presented is intended to be a close estimation of metrics tracked). Using skin temperature, advanced women’s health tracking can provide more insight into your menstrual cycle , including better period predictions and past ovulation estimates (this feature is not intended to support conception, contraception or birth control and is not a medical device). If you wear a compatible Garmin smartwatch during the day, your data will seamlessly sync via the Garmin Connect app for more insight into your health and fitness. Plus, get up to 7 nights of battery life.
Features
Sleep tracking
How did you sleep? The Index Sleep Monitor gives you insight with sleep score, sleep stages, HRV status and more, so you can better understand how well you recovered.
Comfrotable design
Worn on the upper arm, this lightweight and breathable smart sleep band comes in two sizes, allowing you to get the data you need without compromising comfort.
Seamless data syncing
The Index Sleep Monitor seamlessly syncs your data with the Garmin Connect smartphone app. If you wear a compatible Garmin smartwatch during the day or a heart rate monitor during workouts, your data will seamlessly sync via Garmin Connect for more insight into your health and fitness.
Seamless data syncing
The Index Sleep Monitor seamlessly syncs your data with the Garmin Connect smartphone app. If you wear a compatible Garmin smartwatch during the day or a heart rate monitor during workouts, your data will seamlessly sync via Garmin Connect for more insight into your health and fitness.
Breathing variations
For a closer glimpse of your health, the breathing variations feature uses Pulse Ox to help you better understand shifts in your breathing patterns as you sleep.
Sleep data integration
Don’t wear your compatible smartwatch to bed? The Index Sleep Monitor can help fill in the gaps. It provides the sleep data needed for a more complete picture of your training metrics, including training readiness, recovery time and more.
Specifications
- Operating System CompatibilityiPhone, AndroidBuilt-in Storage0 gigabytesMetrics MeasuredDuration of sleep stagesProtective QualitiesNone
Reviews
Rating 3.6 out of 5 stars with 5 reviews
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Compare similar products
How did you sleep? Find out with the Index Sleep Monitor. Comfortable, lightweight and worn on the upper arm, this smart sleep band can capture sleep-tracking and recovery metrics — including sleep score, sleep stages and HRV status — so you can better understand how your body recovers each night (data presented is intended to be a close estimation of metrics tracked). Using skin temperature, advanced women’s health tracking can provide more insight into your menstrual cycle , including better period predictions and past ovulation estimates (this feature is not intended to support conception, contraception or birth control and is not a medical device). If you wear a compatible Garmin smartwatch during the day, your data will seamlessly sync via the Garmin Connect app for more insight into your health and fitness. Plus, get up to 7 nights of battery life.
How did you sleep? Find out with the Index Sleep Monitor. Comfortable, lightweight and worn on the upper arm, this smart sleep band can capture sleep-tracking and recovery metrics — including sleep score, sleep stages and HRV status — so you can better understand how your body recovers each night (data presented is intended to be a close estimation of metrics tracked). Using skin temperature, advanced women’s health tracking can provide more insight into your menstrual cycle , including better period predictions and past ovulation estimates (this feature is not intended to support conception, contraception or birth control and is not a medical device). If you wear a compatible Garmin smartwatch during the day, your data will seamlessly sync via the Garmin Connect app for more insight into your health and fitness. Plus, get up to 7 nights of battery life.
The Helio Strap is built for those who train hard and recover smarter. Designed for precision, endurance, and everyday versatility, it delivers industry leading accuracy, extended battery life, and a lightweight, comfortable fit that moves with you. Worn all day, it provides continuous heart rate monitoring and deep health insights without the hassle of subscriptions. More than just a fitness tracker, the Helio Strap is a vital part of the Amazfit ecosystem. Seamlessly integrating with Amazfit smartwatches, the Helio Ring, and the Zepp App, it powers a complete training system designed to help you train with purpose, recover effectively, and repeat with confidence.
The most advanced health and performance wearable is here. Maintain your best health with medical-grade insights on WHOOP Life. With 24/7 data collection and 14+ days of battery life, WHOOP continuously monitors your metrics, then customizes coaching based on your unique physiology. Get daily blood pressure insights, right from your wrist. Plus, stay informed about your heart health with medical-grade insights from on-demand ECG readings.*
| Pros for Garmin - Index Sleep Monitor Size: S/M - Black - (2025) | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Battery Life, Overall Performance, Health Tracking, Charging Speed | Overall Performance, Battery Life, Data Accuracy, Comfort, Sleep Tracking |
Specs
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