The best fitness tracker for hardcore gym-goers and trainers, the Whoop 4.0 is more than just your average activity band. It’s muted and unobtrusive, and you can wear a watch (or smartwatch ...

The best smartwatches and the best running watches ... Band 9 Pro, both of which are new to this guide as we see out 2024. On the fence? Learn more about the differences between fitness tracker ...