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This can be paid in instalments of £24.44 over six months too. Each device comes with a year’s limited warranty and a 45-day money back guarantee.Īt the time of writing, you can pick up a Charge 5 on Amazon UK for £141.50 and that comes with a six-month Fitbit premium membership. The Fitbit Charge 5 comes in black, gold or silver and with an array of different strap colour options. This feature is particularly useful for those who wish to improve their quality of sleep. Then it gives you an overall score at the end. It also tracks the four different stages of sleep awake, REM, light, and deep. This works by monitoring your breathing which, in turn, works out your estimated oxygen variation. One thing that walks hand in hand with battery life is the ability to track your sleep, which the watch does very well. Another bonus with the Charge 5 is its battery life that is quoted to last up to seven days and with testing, lives up to that promise quite easily, depending on use and brightness and GPS settings etc.

Best fitbit for sleep tracking