The device can also monitor your heart rate and menstrual cycle, and provides sleep and daily stress scores for a better ...

Fitbit Charge HR Heart Rate and Activity Wristband promise to help you monitor your heart rate automatically and continuously on your wrist. It claims to help you take control of your goals using ...

and the heart rate monitor has some value, though it's a bit under-utilised and inaccurate. The main thing that the Charge HR has going for it is Fitbit's eco-system. You can also tap into this ...

CooSpo Heart Rate Monitor Best for the Data-obsessed: Fitbit Versa 4 Health & Fitness Smartwatch Best Heart Rate Monitor Smartwatch for Android Users: Samsung Galaxy Watch 7 Best Heart Rate ...

SAVE UP TO 40%: Fitbit trackers are on sale at Amazon for up to 40% off, including the Fitbit Inspire 3 — a Mashable favorite ...

How resistant the watch is to submersion in water, as tested by subjecting the device to a water pressure equivalent to the depth the manufacturer claims the fitness tracker can withstand.

How resistant the watch is to submersion in water, as tested by subjecting the device to a water pressure equivalent to the depth the manufacturer claims the fitness tracker can withstand.

Meanwhile, a new Restoration metric shows not just your heart rate while sleeping, but also your restlessness and estimated oxygen variation. We also love the Fitbit Charge 5's new ECG monitor and ...

If you're looking for a usable fitness device perfect for new starters, US shoppers can get the Fitbit Charge 6 for just $99 ...

But if you have an irregular period, you'd need to take an ovulation test and input the results for a truly accurate reading... which is kinda annoying. The Fitbit also can't track pregnancy —some ...