If you're after something more like a smartwatch than a fitness tracker, this Fitbit Versa 4 deal is the one to pick. You can buy the Versa 4 on Amazon ... 24/7 heart rate monitoring and sleep ...
you should think twice before buying one of these at its original price as deals are fairly common, and the discounts are often excellent. Value score: 4/5 There are few wearables that compare ...