Honor Band 3 Activity Tracker with Water resistant up to 50m and an advanced sleep tracking with Long battery life 30 days Smart notifications & heart rate monitoring . Measure your heart rate with greater accuracy thanks to M4 core technology, support for floating-point operations, and an optimized algorithm.
Third-generation high-performance battery improves the energy density by 20%.*
System-level optimization and low-power circuit design reduce power consumption by 80%.*