- Comfortable, breathable upper arm design
- Up to 7 nights of battery life
- Index Sleep Monitor easily syncs data with the Garmin Connect™ smartphone app. Whether you wear a compatible Garmin watch during the day or a heart rate monitor during workouts, your data will sync easily through Garmin - - Connect for more insights into your health and fitness.
- Overnight breathing variations: For a deeper look into your health, the breathing variations feature uses Pulse Ox to better understand how your breathing patterns change during sleep.
- Machine washable armband for easy cleaning
- Sleep data integration: Not wearing your compatible watch to bed? Index Sleep Monitor is your solution. It provides the sleep data you need for a more complete picture of your training metrics, including workout readiness, recovery time and more.
- Women's Health: From your skin temperature, it provides you with more information about your menstrual cycle, including better cycle predictions and estimates from past ovulation

Specifications:
- Band Material: Soft, stretchy and breathable mix. 70% nylon, 30% spandex
- Case Material: Plastic
- S-M Band Weight: 15.8g
- Battery Type: Lithium Ion
- Battery Life: 7 nights with SpO2 during typical use (8 hours of sleep)
- Connectivity: BLE (Bluetotth Low Energy 5.0)
- Package Contents: Index Sleep Monitor, Charging/Data Cable, Documentation