1. Epson ProSense 307: Best for data-obsessed triathletes
Thanks to its “e-ink” display, Epson’s ProSense 307 can go a full 20 full hours in tracking mode, even while capturing heart rate. If your events are slow-burn epics, this is your wearable. It tracks running, biking, and swimming—and when you’re not training, it counts calories and steps. And it uses predictive modeling, too, so it will show predicted times for different event distances based upon your heart rate and speed over shorter distances.
This watch is designed to live in the Epson ecosystem, although the watch pairs easily with third-party apps like Strava and Runkeeper. Fortunately, Epson’s app offers an incredible slate of detailed statistics about your performance, from stride length to Swolf scores. If you love to track every stroke, stride, and sprint—and you demand a robust, power-friendly watch that will do it accurately—then Epson’s ProSense 307 is the fitness tracker for you. ($249.99, epson.com)Back to top