One great deal we’ve found today is on the immensely useful Fitbit Charge 6 fitness tracker. This handy device can be a huge boon for your health, and while it’d normally set you back $160, this Prime Day deal knocks it down by 38% to just $100.

The Fitbit Charge 6 is also a mighty accurate sleep tracker and heart rate monitor. However, it’s worth noting that some of the more advanced training features are locked behind Fitbit’s Premium paywall, which is $9.99 a month or $79.99 for the year. That said, this deal comes with a six-month free trial to the service.