Meet the M400 from Polar: an elegant GPS watch that serves as a 24/7 activity tracker. This Bluetooth device tracks your training metrics such as speed, pace, distance, and altitude with its GPS capability. Bring your Polar H7 heart rate sensor, and you can make sure you are pushing your body at the right intensity. The device also gives you an idea how many steps you have taken, how calories you have burned, and how well you have slept.
The M400 has a battery life of 9 hours in training time. It offers Polar running programs to get you ready for 5k, 10k, or long distance events. It tracks your best times and the improvements you are making. It also lets you relive and share your routes. The watch is water resistant and offers updatable software. Did we mention that it works with the Polar Flow app? Sets you back $199.95 at this time.[where to get it]