Many phones can track your steps and distance, smart rings report on your sleep, and even some earbuds offer heart-rate monitoring. But for accurate-as-possible always-on activity monitoring, you should have a wearable on your arm or wrist.The fitness trackers we recommend are equipped with features such as automatic exercise detection and personalized workout programming, plus the advertised ability to monitor stress and sleep quality.Since 2015, we’ve run, walked, swam, cycled, and slept with 54 fitness trackers day and night, assessing their accuracy, ease of use, and overall comfort.Although no tracker has perfectly recorded every metric we’ve tested, we’ve found that the simply designed yet feature-packed Google Fitbit Inspire 3 and Google Fitbit Air are the best options for most people who want to monitor their everyday activities, with metrics such as distance traveled, step count, heart rate, and estimated calories burned.