How Well Does The Fenix 3Hr Track Rem Sleep?

The Garmin Fenix 3HR is a smartwatch with advanced sleep-tracking features. While you sleep, the device monitors your movement and uses an accelerometer to track your sleep patterns. It can measure total sleep hours, sleep levels, and sleep movement. However, it does not track REM sleep, which is a limitation of the older version of the optical heart rate monitor used in this device. Newer Garmin watches with updated optical heart rate sensors, such as the Fenix 5 series, are capable of tracking REM sleep in addition to light and deep sleep.

The Garmin Fenix 3HR does not track REM sleep

The Fenix 3HR uses motion sensors and heart rate monitoring to track sleep patterns. It detects movement and changes in heart rate variability to determine sleep stages. However, it is unable to detect REM sleep, which is one of the four sleep stages that an individual goes through each night.

To set up sleep tracking on the Fenix 3HR, users can input their usual sleeping hours in the 'User Settings' of the Garmin Connect app. The watch uses this information, along with its onboard sensors, to start tracking sleep. It is important to ensure that Bluetooth is turned on and the device is successfully connected to the app to sync the results.

The Fenix 3HR tracks light and deep sleep

The Fenix 3HR does not track REM sleep. This is because it does not have advanced sleep monitoring capabilities. It does not have a continuous heart rate monitor, only taking readings every few seconds or minutes. This is not frequent enough to detect the changes in heart rate variability that indicate REM sleep.

You can manually input your sleep hours in the Garmin Connect app

The Garmin Fenix 3 HR does not have advanced sleep monitoring and is not compatible with REM data. While you are sleeping, the device monitors your movement and provides sleep statistics including total hours of sleep, sleep levels, and sleep movement.

The Fenix 3HR uses motion sensors and heart rate monitoring to track sleep

The Fenix 3HR has an accelerometer that makes sleep tracking possible. However, it does not have advanced sleep monitoring capabilities and cannot track REM sleep. This is because the Fenix 3HR's heart rate monitor is not capable of scanning your heart rate continuously throughout the day. It only takes intermittent readings, which is necessary for getting REM functionality.

To set up sleep tracking on your Fenix 3HR, you can input your normal sleep hours in the user settings on your Garmin Connect account. You can also adjust your 'Bed Time' and 'Wake Time' in the Garmin Connect app by navigating to Settings > User Settings. This will ensure that your watch doesn't disturb you during your sleep hours.

The Fenix 3HR can track sleep without an optical heart rate monitor, but the results may not be as accurate

To set up sleep tracking on the Fenix 3HR, users can input their usual sleep hours in the 'User Settings' on their Garmin Connect account. The watch will then use this information along with its onboard sensors to track sleep. However, for more detailed sleep information, users should also download the Garmin Connect app on their smartphone.

While the Fenix 3HR can track sleep without an optical heart rate monitor, newer Garmin devices with this feature may provide more accurate results. These devices include the Instinct 2, Forerunner 955, Venu 2 Plus, Fenix 7, and Epix Gen 2. The optical heart rate monitor on these devices works in conjunction with the accelerometer to determine sleep stages more precisely.

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