Polar M400 GPS Activity Tracker Watch HR Bundle | Red Color:Red Battery life: 8 hours

Battery life: 8 hours

Casing Material: 316 Stainless Steel

P works as a daypack

The low version is best for US dollars

Polar M400 GPS Activity Tracker Watch HR Bundle | Red Color:Red Battery life: 8 hoursFeaturing GPS technology, the Polar M400 Activity Tracker will take your training to the next level. This HR Bundle includes a heart rate sensor. Tracking your pace, distance, altitude, and calories burned it will let you know you're fitness achievement for each workout, and gently vibrate to let you know when you need to move throughout the day. Use the Polar Flow App to set goals, track your progress, and compare with your friends. [Details] Track