How does the smart wake alarm feature work on the Versa 4

1. Setting Up Smart Wake: To use Smart Wake, you first need to set an alarm on your Fitbit Versa 4. This can be done by opening the Alarms app on your watch, tapping on "New Alarm," and setting the desired time. Once the alarm is set, you can enable Smart Wake by scrolling down and selecting it from the alarm settings[3][4][9].

2. Functionality: Smart Wake uses data from your Fitbit's heart rate and motion sensors to monitor your sleep stages. Starting 30 minutes before your set alarm time, it looks for the best moment to wake you during a lighter sleep phase, such as REM or light sleep, rather than deep sleep[6][11]. This approach aims to minimize grogginess and make waking up feel more natural.

3. Operation: If Smart Wake cannot find an optimal time to wake you within the 30-minute window before your set alarm, it will default to waking you at the scheduled time. This ensures you still wake up on time even if it can't find a lighter sleep phase[3][11].

4. Benefits: The primary benefit of Smart Wake is that it helps you wake up feeling more refreshed and alert. By avoiding deep sleep stages, you're less likely to feel disoriented or tired upon waking[6][11].

5. Customization: You can customize your alarms to repeat on specific days of the week or set them as one-time events. This flexibility allows you to tailor your wake-up routine to your schedule[4][7].

Overall, the Smart Wake feature on the Fitbit Versa 4 combines advanced sleep tracking with intelligent alarm timing to enhance your morning routine and improve how you feel upon waking.