Languages Included English and Chinese. Wristband width 18mm, Adjustable wrist strap length 155-216mm
Battery Life: 135mAh battery capacity built within the Mi Band 4, max working time As much as 20 days after a whole charging.
Health Monitoring: Reinforce heart rate monitoring, heart rate alerts, sleep monitoring, idle alerts; Monitoring your health knowledge o matain your fitter body
Activity Tracking: Comes with 6 workout modes: Treadmill, exercise, outside running, cycling, walking, swimming Counting step, distance, calories burned throughout sports
5ATM Water Resistant: As much as 50 meters waterproof rate, freely to wear Mi Band 4 when running and exercising
Display: 0. 95-inch Colorful AMOLED display with 120 x 240 pixels solution, As much as 450 nits screen brightness