• Weight 27.4g with strap
• Dimension 46.53*21.63*10.95mm
• Display type AMOLED
• Screen size 1.62″
• Resolution 192 x 490, 326 PPI
• Screen brightness Max 1200 nit
• Ambient light sensor Yes
• Water resistant level 5 ATM
• Wrist strap material TPU
• Wireless connectivity BT5.4
• Sensors 3-axis accelerometer + 3-axis gyroscope sensors PPG sensor
• Battery LiPo, 233mAh
• Standby time 21 days for normal use, 9 days AOD use
• Charging time About 1 hour
• System requirements Android 8.0，iOS12 or above
• Supported App Mi Fitness
• Colorful metallic frame with Multi-material wrist strap accessories
• 1.62” AMOLED display for seamless interaction
• Up to 21-day battery life
• Upgraded all-round sleep monitoring
• Improved heart rate and SpO₂ monitoring
• Watch level fine vibration
• 150+ workout modes
• Support Accessories to Wear Band in a New Way

Specifications : Xiaomi Smart Band 9 Smart Watch 1.62-inch AMOLED Display – Arctic blue