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.

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.

Take charge of your health with vívosmart 5. This easy-to-use, comfortable fitness tracker comes loaded with features to track your activity all day and sleep stages all night once setup through the Garmin Connect app (This device is intended to give an estimate of your activity and metrics). Wrist-based heart rate, stress tracking, Body Battery energy monitoring and more help you stay informed while smart notifications from your paired smartphone keep you connected. Stay active with built-in sports apps that include profiles for walking, running, yoga, cardio and more. Plus, when connected to your smartphone, incident detection (during select outdoor activities) and Assistance features send a message with your live location to emergency contacts for greater peace of mind (Requires setup and your smartphone to be in an area with network coverage where data connectivity is available). With up to 7 days of battery life, vívosmart 5 gives you an uninterrupted picture of your health and can go wherever your busy schedule takes you.

Do what you love and feel your best with Inspire 3. This little health hack on your wrist helps you stay on top of your stress, fitness and sleep--all you have to do is wear it. Track Health Metrics like skin temperature & blood oxygen, plus get daily scores that show how ready you are to workout or how well you're managing stress. Includes a 6-month Fitbit Premium membership1. Fitbit is part of the Google family.
| Pros for Garmin - Index Sleep Monitor Size: S/M - Black - (2025) | |||
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| Cons for Garmin - Index Sleep Monitor Size: S/M - Black - (2025) | |||
| There were no cons for this product— | There were no cons for this product— |
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.
Way more comfortable than wearing my Enduro 3 to sleep. Plus, this gives pulse ox readings so I can turn that off on my watch to save battery. The only con is it doesn't (yet) give Health Stats in Connect, but should with an update.
Posted by Jentx15
Had for a while and some nights it will record sleep an stop halfway through the night. But will record heart rate and O2 the whole night. Also i have to turn off watch so it will be primary for the app. Should be alittle less painful to get sleep data. Maybe they will have a update to allow the app to know what device i am currently wearing and make this alittle less of a quessing game
Posted by MavicYosik
Does exactly what it is described to do - monitors sleep. It is very comfortable; I don't realize I have it on. I like having the additional data that it monitors.
Posted by JaceFLL