Mi Smart Band 4
Step up, live more. Full colour AMOLED 0.95” display with resolution 120 x 240.Heart rate monitor. Water Resistance Rating 5ATM. ROM 16MB and RAM512KB. Wireless connectivity – Bluetooth BT5.0 BLE.
System requirements - Android 4.4, iOS 9.0 or above
【 Sport Functions】 6 workout modes Treadmill exercise outdoor running cycling walking pool swimming Count steps distance and calories burned
【Health monitoring】- Workout completion notifications goal setting sleep monitoring heart rate monitoring all-day heart rate checking resting heart rate heart rate chart idle alerts
【 Touch Display】 Find my phone phone unlock event notification night mode Do not disturb mode (works even without phone) music controls on band Bluetooth broadcasting battery level display different ways to wear, OTA updates
【Long Battery Life】 A single charge lasts up to 20 days. Mi Smart Band 4 lasts up to 20 days on a single charge according to Huami Laboratory testing: Tested using default settings, with 30 minute automatic heart rate monitoring enabled, receiving 100 notifications per day, 2 alarms per day, vibrating for 5 minutes, touching the touch button 10 times per day, and syncing with the app once per day. Actual results may differ due to to differences in environment, use and settings.