Product parameters: Master chip GR5515+64M FLASH Gsencor sensor Rohm KTJ3-1057 heart rate sensor Epticore EM7128 1.9 inch IPS LCD screen 280*320 high resolution HD screen Screen resolution: 240*240 waterproof level:IP67 Battery capacity: 260mAh Bluetooth version: 5.1 Motor: Built in, vibratng reminder System requirements: Android 4.4 and above, IOS 9.0 and above, support Bluetooth 5.1 Functions: Step counting, distance, calories, heart rate, blood oxygen, blood pressure, blood sugar, body temperature test, sleep monitoring music playing, stopwatch,countdown, calculator, weather display, female physiological period function,remote photography, wrist raising and screen lighting, looking for mobile phones,etc.Call reminder (call number/name), information reminder, alarm clock reminder, long sitting reminder, heart rate alarm reminder, Bluetooth disconnection reminder(APP is required to open), etc. Multi dial: 3 default dials+1 dial market dial+1 user-defined dial 50 kinds: outdoor running, outdoor walking, hiking, indoor running, indoor walking,stepper, outdoor cycling, indoor cycling, elliptical machine, rowing machine, yoga,HIIT, free movement, fitness, skipping rope, fitness games, rock climbing, Athletics,Aerobics, Baseball, Softball, Baseball, Bowling, Trampoline, Curling, Ice Hockey, Horizontal Bar, Mountaineering, Sailing, Push-ups, Rugby, Golf, Skating, Skiing,Fitness Ball, Basketball, Marathon, Volleyball, Table Tennis, Hockey, Rowing,handball, parallel bars, billiards, gymn Language? Bracelet languages: Simplified Chinese, Traditional Chinese, English, Japanese, Korean,German, Russian, Spanish, Italian, French, Portuguese, Turkish, Hungarian, Brazilian,Portuguese, Ukrainian; APP languages: English Chinese Simplified Chinese Traditional Korean German Japanese Russian Spanish Italian French Vietnamese Portuguese Persian Polish Turkish Czech Slovak Hungarian Arabic Package Included: Host, charging line, wrist strap, manual, box