Polar M400 Smart Sports Watch is designed for runner’s comfort, and durability and it comes with in-built GPS for location tracking, pace, and altitude. You can effectively monitor your burned calories, steps, distance, workouts, sleep quality, running, and all-around activities. This smartwatch has an option for planning, syncing, and sharing your training through the Polar Flow app and web platform.
Pros
Fitness tracker
H7 heart rate sensor compatible
Water-resistant
Cons
No route navigation
No heart rate monitoring underwater