
The concept behind Garmin’s new Smart Alarm feature is pretty simple. To help you avoid a groggy start to your day, the watch tracks your sleep stages and prioritizes waking you during the lighter ones (i.e., not deep sleep or REM).
Users preselect a 30-minute wake-up window, and the Garmin does the rest; your wake-up call comes in the form of wrist-based vibrations.