Review overnight sleep information with the Garmin Index Sleep Monitor in S/M. The selected upper-arm band fits circumferences of 20–29 cm, keeping the monitoring module in a breathable band while you sleep.
Sleep scores, sleep stages and HRV status provide estimates that sync with Garmin Connect on a compatible smartphone. Remove the module before machine washing the band. Pulse Ox availability varies by country.
Selected fit and specifications
| Selected size |
S/M; 20–29 cm upper-arm circumference |
| Module dimensions |
41.7 × 37.6 × 7.8 mm |
| S/M band dimensions |
326 × 63.5 × 0.55 mm |
| S/M band weight |
15.8 g; module 14.5 g separately |
| Battery |
Up to 7 nights with SpO2 during typical 8-hour sleep use |
Battery figures are manufacturer estimates; actual duration depends on settings and use. Fitness and sleep information is for general awareness, not medical diagnosis or monitoring. A compatible smartphone is separate.
In the box
- Index Sleep Monitor with selected S/M band
- Charging/data cable
- Documentation
Follow the supplied setup and care instructions.