Index Sleep Monitor
Index Sleep Monitor launched 18 Jun 2025 at $169.99. Upper-arm sleep band with HRV and overnight health tracking

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The basics
- Brand
- Garmin
- Line
- Accessories
- Released
- 2025-06-18
- Launch price
- $169.99
- Official site
- garmin.com ↗
Upper-arm sleep band with HRV and overnight health tracking
Video coverage
Garmin Index Sleep Monitor In-Depth Review: Worth It?DC Rainmaker · Thu, 18 Sep 2025
The Garmin Index Sleep Monitor Actually Works 24 Hours a Day?DC Rainmaker · Thu, 18 Sep 2025
Garmin Index Sleep Monitor Review // What Can It Do?DesFit · Thu, 18 Sep 2025
Garmin's Sleep Tracking - Scientific Test! (Garmin Index Sleep Monitor Review)The Quantified Scientist · Sat, 22 Nov 2025Cross-brandrecovery wearables
Screen-free recovery, three ways — a band, a ring and a sleep armband, measured on the same rows.
Launch prices are historical. Price links may earn us a commission. As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.
| Garmin Index Sleep Monitor2025-06 | Whoop 5.0 / MG2025-05 | Oura Ring 42024-10 | |
|---|---|---|---|
| Launch price | $169.99 | $199–$359/yr membership | $349 |
| Weight | 3.3–5.2 g (ring, by size) | ||
| Form | Sleep armband, upper arm | Screen-free band, wrist | Smart ring |
| Battery | up to 7 nights | 14+ days | up to 8 days |
| Membership | — | Required, $199–$359/yr | Optional, $5.99/mo |
| Sensors | HR, HRV, Pulse Ox | HR, SpO2, skin temp; MG adds ECG and blood-pressure insights | HR, HRV, SpO2, skin temp |
| Recovery metrics | Body Battery on paired Garmin watches | Recovery and Strain in the Whoop app | Readiness and Sleep Score in the Oura app |
| Signature | Feeds Body Battery into paired Garmin watches | Fourteen-day battery, MG adds ECG and blood-pressure insights | The ring that made recovery mainstream |