Here is a GPS watch that can track your activity 24/7. The M400 from Polar is designed for runners and those who live an active lifestyle. The watch is water-resistant and uses Bluetooth. You can use the watch to track your speed, pace, distance, and altitude with the built-in GPS. The device shows how many steps you have taken and the amount of calories you have burned. It can even track your sleep. The M400 can run for 9 hours in training time with GPS and sensors running.
The M400 takes advantage of Polar Running programs to help you improve your performance. It tracks your personal best times and offers an end time estimator. You can sync your training information to the Polar Flow portal and app. You are provided with help to reach your goals during each workout. Since the device has Bluetooth, you can update it easily. This is essentially a GPS watch with smart coaching and activity tracking. The M400 watch sets you back under $200 without the H7 heart rate monitor.