Garmin launches new sleep monitor

On June 18, 2025, Garmin introduced the Garmin Index Sleep Monitor, a new wearable device designed specifically for tracking sleep and nighttime activity. The product is intended to provide comfort and accurate data while being worn during sleep.

Device design and comfort

The Garmin Index Sleep Monitor is described as a discreet roller that is worn on the upper arm and is not felt during sleep. Its design is meant to be more comfortable than traditional smartwatches, especially during the night.

Tracking features and battery life

The device tracks skin temperature, blood oxygen levels, sleep cycles, heart rate, and breathing rate during rest. Data from the device is accessible through the Garmin Connect application, and Garmin claims the device has a battery life of seven nights on a single charge.

Pricing and availability

The Garmin Index Sleep Monitor is priced at 169.99 euros, but it is currently available at a discounted price of 139.99 euros through Boulanger. This makes it more accessible to consumers looking for a specialized sleep-tracking device.

Comparison to smartwatches

While the features of the Garmin Index Sleep Monitor are similar to those of Garmin smartwatches, the wristband is marketed as a more comfortable alternative for nighttime use. It is positioned as a complement to a smartwatch rather than a replacement, especially compared to bulkier models like the Fenix 8.