Meet the EPSON Runsense SF-810: a wrist-worn heart rate monitor with GPS. The device lets you measure, analyze, and compare your performance data. It is water resistant up to 50 meters. EPSON Runsense provides you with 35 different measurements, including continuous heart rate, time elapsed, distance, pace, laps, intervals, speed, calories burned, and more.
The device has a compact, lightweight design. It can store up to 400 laps of information without needing to sync. It connects to your smartphone via Bluetooth 4.0. The watch will be available in 3 models: SF-510 , SF-710, and SF-810. You can get one for as low as $249.99.