Key Specs See Full Specs
| Activity tracking Steps Heart Rate Hours Slept | Features Water Resistant Alarm | Syncing Bluetooth NFC | Battery 135 mAh, Li-Polymer Upto 20 Days battery Charging via USB |
Xiaomi Mi Band 4 Specifications
General
| Brand | Xiaomi |
| Model | Mi Band 4 |
| Box Contents | Fitness Band, Charging Cable, Warranty Card, User Manual |
Compatibility
| Compatible OS | Android,iOS |
Battery
| Capacity/Type | 135 mAH, Li-Po |
| Battery life | Up to 20 Days |
| Charging mode | via USB |
Design
| Shape & Surface | Rectangular, Flat |
| Weight | 22 grams |
| Colours | Black, Blue, Purple, Red |
Syncing
| Bluetooth |  v5.0 |
| USB Connectivity |  No |
| NFC | |
Activity Tracker
| Steps | |
| Sleep quality | |
| Hours Slept | |
| Heart Rate | |
Sensors
| Accelerometer | |
| Gyro | |
Display
| Screen Size | 0.95 Inch |
| Screen Resolution | 120 x 240 pixels |
| Pixel Density (sharpness) | 282 ppi |
| Display Technology | AMOLED |
| Touch Screen | |
Additional Features
| Alarm Clock | |
| Reminders | |
Notifications
| Incoming Call | |
| Calendar Reminder | |
| Timer | |
| Weather | |
Smartphone Remote Features
| Make call | |
| Receive call | |
| Music Control |
