Mi Smart Band 4 vs Lenovo Spectra HX03F Smart Band comparison
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| ratings |
| Overall NDTV Rating | Read Review | - |
| Design and comfort Rating | | - |
| Tracking accuracy Rating | | - |
| Companion app Rating | | - |
| Battery life Rating | | - |
| key specs |
| Display Type | AMOLED | LCD |
| Water Resistant | Yes | Yes |
| Heart Rate Monitor | Yes | - |
| Compatible Devices | Android, iOS Phones | Android & iPhone |
| Battery Life (Days) | 20 | 7 |
| general |
| Brand | Mi | Lenovo |
| Model | Smart Band 4 | Spectra HX03F Smart Band |
| Model Name | Band 4 | Spectra HX03F |
| Color | Black | Black |
| Ideal For | Unisex | Unisex |
| Material | Thermoplastic | Silicone |
| Suitable For | Health, Lifestyle | Sports, Fitness |
| Touch Enabled | Yes | Yes |
| Water Resistant | Yes | Yes |
| Dial Shape | Rectangle | Rectangle |
| Model Number | - | Spectra HX03F |
| Reading Type | - | Digital |
| Function | - | Heart Rate, Tracks Steps, Distance, Calories Burned, Pedometer, Sleep Monitor, Alarm Clock Reminder, Anti Sleep Mode, Sedentary Reminder, Sports Statistics, Motion Reminder |
| display and battery features |
| Display Resolution | 120 x 240 RGB | 160 x 80 Pixels |
| Display Type | AMOLED | LCD |
| Battery Life (Days) | 20 | 7 |
| Battery Type | Lithium Ion (Li-ion) | Lithium Ion (Li-ion) |
| Charge Time (hours) | 2 | - |
| Battery Capacity (mAh) | 135 | - |
| performance features |
| Shock Resistant | Yes | Yes |
| Water-Resistant Depth (metres) | 50 | - |
| connectivity features |
| Wi-Fi Enabled | No | No |
| Bluetooth Enabled | Yes | Yes |
| Bluetooth Version | v5.0 | v4.2 |
| compatibility |
| Compatible Devices | Android, iOS Phones | Android & iPhone |
| Compatible Android Version | - | Android 5.0 and above |
| Compatible iOS Version | - | iOS 9.0 and above |
| activity tracking function |
| Calories Burned | Yes | - |
| Distance Covered | Yes | - |
| Heart Rate Monitor | Yes | - |
| Phone Notifications | Yes | - |
| Sleep Tracking | Yes | - |
| Step Counter | Yes | - |
| workout modes |
| Treadmill | Yes | - |
| Exercise | Yes | Yes |
| Outdoor Running | Yes | Yes |
| Cycling | Yes | Yes |
| Walking | Yes | Yes |
| Swimming | Yes | - |
| sensors |
| Accelerometer | Yes | - |
| Gyroscope | Yes | Yes |
| Optical Heart Rate Sensor | Yes | Yes |
| Vibration Motor | - | Yes |
| dimensions |
| Weight (grams) | 22.1 | 20 |
| Width (mm) | 45.72 | - |
| Height (mm) | 12.7 | - |
| Depth (mm) | 17.78 | - |
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