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key specs | ||||
Display Type | LCD | AMOLED | ||
Water Resistant | Yes | Yes | ||
Heart Rate Monitor | Yes | Yes | ||
Battery Life (Days) | 14 | 20 | ||
Compatible Devices | - | Android, iOS Phones | ||
general | ||||
Brand | Redmi | Mi | ||
Model | Band 2 | Smart Band 4 | ||
Release date | December 27, 2022 | - | ||
Model Number | M2225B1 | - | ||
Touch Enabled | Yes | Yes | ||
Water Resistant | Yes | Yes | ||
Dial Shape | Rectangle | Rectangle | ||
Model Name | - | Band 4 | ||
Color | - | Black | ||
Ideal For | - | Unisex | ||
Material | - | Thermoplastic | ||
Suitable For | - | Health, Lifestyle | ||
display and battery features | ||||
Display Resolution | 172x320 | 120 x 240 RGB | ||
Display Type | LCD | AMOLED | ||
Battery Life (Days) | 14 | 20 | ||
Charge Time (hours) | 2 | 2 | ||
Battery Capacity (mAh) | 210 | 135 | ||
Battery Type | - | Lithium Ion (Li-ion) | ||
performance features | ||||
Water-Resistant Depth (metres) | 50 | 50 | ||
Shock Resistant | - | Yes | ||
connectivity features | ||||
Bluetooth Enabled | Yes | Yes | ||
Bluetooth Version | v5.1 | v5.0 | ||
Wi-Fi Enabled | - | No | ||
compatibility | ||||
Compatible Android Version | Android 6.0 and above | - | ||
Compatible Devices | - | Android, iOS Phones | ||
activity tracking function | ||||
Heart Rate Monitor | Yes | Yes | ||
SPO2 Monitor | Yes | - | ||
Calories Burned | - | Yes | ||
Distance Covered | - | Yes | ||
Phone Notifications | - | Yes | ||
Sleep Tracking | - | Yes | ||
Step Counter | - | Yes | ||
sensors | ||||
Accelerometer | Yes | Yes | ||
Optical Heart Rate Sensor | Yes | Yes | ||
Gyroscope | - | Yes | ||
dimensions | ||||
Weight (grams) | 14.9 | 22.1 | ||
Width (mm) | 42.81 | 45.72 | ||
Height (mm) | 25.42 | 12.7 | ||
Depth (mm) | 9.99 | 17.78 | ||
ratings | ||||
Overall NDTV Rating | - | Read Review | ||
Design and comfort Rating | - | |||
Tracking accuracy Rating | - | |||
Companion app Rating | - | |||
Battery life Rating | - | |||
workout modes | ||||
Treadmill | - | Yes | ||
Exercise | - | Yes | ||
Outdoor Running | - | Yes | ||
Cycling | - | Yes | ||
Walking | - | Yes | ||
Swimming | - | Yes |