2019 Newest Mi Band 4 with upgraded features has arrived, its color screen, displayed brightness, improverd battery capacity, BT 5.0 connectivity and other features created by a new level over its predecessor. Features:Display: 0.95-inch Colorful AMOLED display with 120 x 240 pixels resolution, up to 450 nits screen brightness.Look and Design: All-new user interface for giving smoother and simplified touched screen experience2.5D tempered glass with anti-fingerprint coating.Battery Life: 135mAh battery capacity built in the Mi Band 4, max working time up to 20 days after a full charging.Activity Tracking: Comes with 6 workout modes: Treadmill, exercise, outdoor running, cycling, walking, swimming Counting , distance, calories burned during sports.Health Monitoring: Support heart rate monitoring, heart rate alerts, sleep monitoring, idle alerts Monitoring your health datat o matain your healthier body.Sensors: 3- accelerometer, 3- gyroscope, Capacitive proximity sensor, Optical heart rate sensor.5ATM Water Resistant: Up to 50 meters water resistant rate, freely to wear Mi Band 4 when running and exercising.Other Basic Features: Stopwatch, Alarm clock, Timer, Find my phone, Phone unlock, Event reminder, Do not disturb mode (works even without phone), Lock screen, Music controls on band.Connectivity & System: Support BT 5.0 (Low energy), and support for Android 4.4, for iOS 9.0 and above.Specifications:Brand: XiaomiType: Mi Band 4Color: black, orange, burgundy, blue (optional)Screen size: 0.95inches color AMOLED display, 120 x 240 pixelsColor depth: 24 bitScreen brightness: Up to 450 nitsTouchscreen type: On-cell capacitive touchscreenScreen protection: 2.5D tempered glass with anti-fingerprint coatingButton: Single touched button (wake up, go back)Wrist strap material: TPUHeart Rate Monitor: SupportSleep Monitor: SupportCall or Message Reminder: SupportRAM: 512KROM: 16MBNFC: NoWireless connectivity: BT5.0 BLESix Sensors: 3- accelerometer + 3- gyroscope; PPG heart rate sensor; Capacitive proximity sensorBattery: LiPo, 135mAhStandby time: 20 days MaxCharging Time: About 2 hoursSupport System: for Android 4.4/ for iOS 9.0 and above.Adjustable wristband length: 155-216mmProduct weight: Approx. 22.1g / 0.8ouncePackage size: Approx. 180 * 90 * 34mm / 7.1 * 3.5 * 1.3inPackage weight: Approx. 65g / 2.3ounceNote:1. Please search "Mi fit" in play store or App store to download the App.2. Item color may show slight aberration due to different light and monitor display.3. When the mobile phone language is Chinese (simplified), Chinese (traditional), English, the bracelet automatically synchronizes the mobile phone language, when the mobile phone is not in the above three languages, the bracelet will display Chinese (simplified). Package list:1 * XiaoMi Band 41 * Specialized Charging Cable1 * User Guide