Heart rate variability: uses variations in your heart rate to help identify potential signs of stress, fatigue, or illness.

Breathing rate: measures your average breaths per minute.Skin temperature tracking: measures variations in your body temperature while you’re sleeping.SpO2 monitoring: measures the level of oxygen saturation in your blood.EDA scan: an on-wrist scanner that detects changes in electrodermal activity and can indicate a stress response.ECG monitoring: tracks heart rate rhythms and can potentially alert you to signs of AFIB.The Fitbit Charge 5 includes the following health features: Below is a brief overview of all that the tracker has to offer. The Charge 5 has some of the most robust features of any Fitbit fitness tracker. With that said, I wore my Fitbit several times while skiing in temperatures below 14☏ (-10☌) and didn’t encounter any issues with it not working, though it was covered by my ski jacket most of the day. Other important specs to be aware of are the device’s 50-meter waterproof rating and operating temperature range of 14–113☏ (-10–45☌). Recharging the tracker takes just 2 hours using the included charging cable. The Fitbit Charge 5 offers up to 7 days of battery life and notifies you when the battery is running low.

If you keep swiping down, you can view your hourly activity, current and resting heart rate, recent sleep score (for Premium members), oxygen saturation level (SpO2), menstrual cycle tracking, and progress toward your weekly exercise goal.īecause the device is Bluetooth-enabled, all your data is synced with the Fitbit app, which offers deeper insights into your data along with other features, such as community forums and global challenges. Share on Pinterest Photography by Kelli McGrane, MS, RD

Fitbit 4 charger