The $200 FitBit Versa 4 is now just $149 through Amazon. With over 11,000 five-star reviews and five thousand happy customers over the last month, all three color options are on sale, but you’ll get ...

From basic tracking to smartwatch-level features, we've selected the best Fitbit models to help you meet your fitness goals and budget.

Prime Big Deal Days doesn't officially start until Oct. 7, but we tracked down some of the best early fitness tracker deals ...

Many sleep experts recommend exercising in the morning, but some people can exercise at night without harming their sleep. Learn what research says about working out at night.

Athletes often stress about getting protein right after a workout for muscle gains. Learn why getting protein throughout the entire day is more important.

Eight Sleep's Alexandra Zatarain tells Newsweek how she helped the startup rebrand as a "sleep fitness" company.