Mi Smart Band 4 Review

Mi smart band 4 is an affordable 50m water resistant fitness tracker which features 6 activity modes (outdoor running, walking, pool swimming, treadmill, freestyle, and indoor cycling), 0.95-inch color display, all-day heart rate monitor, night-time sleep monitor, and a XiaoAI assistant for your fitness needs.

Pros
Great battery life
Customizable
Cheap

Cons
No female health monitor
No GPS
Supports fewer activities
Poor visibility in bright daylight