Oppo Band Style vs Fitbit Charge 4 comparison
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| key specs |
| Display Type | AMOLED | - |
| Water Resistant | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Compatible Devices | Android Phones | iOS and Android |
| Battery Life (Days) | 12 | 7 |
| general |
| Brand | Oppo | Fitbit |
| Model | Band Style | Charge 4 |
| Release date | March 8, 2021 | March 31, 2020 |
| Model Name | Band Style | - |
| Color | Black, Vanilla | - |
| Ideal For | Unisex | Unisex |
| Suitable For | Fitness, Health | Sports, Fitness |
| Water Resistant | Yes | Yes |
| Function | Continuous SpO2 monitoring, Sleep monitoring, Real-time heart rate monitoring, Daily activity, Get-up reminders, Breathing exercise | - |
| Dial Shape | Rectangle | - |
| Reading Type | - | Digital |
| display and battery features |
| Display Resolution | 126 x 294 Pixels | - |
| Display Type | AMOLED | - |
| Backlight Present | Yes | - |
| Battery Life (Days) | 12 | 7 |
| Charge Time (hours) | 1.5 | - |
| Battery Capacity (mAh) | 100 | - |
| Battery Type | - | Lithium Polymer (Li-poly) |
| connectivity features |
| Bluetooth Enabled | Yes | Yes |
| Bluetooth Version | v5.0 | v4 |
| compatibility |
| Compatible Devices | Android Phones | iOS and Android |
| activity tracking function |
| Alarms | Yes | - |
| Calories Burned | Yes | - |
| Distance Covered | Yes | - |
| Heart Rate Monitor | Yes | Yes |
| Phone Notifications | Yes | - |
| Reminders | Yes | - |
| Sedentary Reminder | Yes | - |
| Sleep Tracking | Yes | - |
| SPO2 Monitor | Yes | - |
| Step Counter | Yes | Yes |
| workout modes |
| Exercise | Yes | - |
| Outdoor Running | Yes | - |
| Cycling | Yes | - |
| Walking | Yes | - |
| Swimming | Yes | - |
| Other Workout Modes | Indoor Run, Fat Burn Run, Indoor Cycling, Elliptical, Rowing, Cricket, Badminton, Swimming, Yoga | - |
| sensors |
| Accelerometer | Yes | Yes |
| Optical Heart Rate Sensor | Yes | Yes |
| Barometric Altimeter | - | Yes |
| Vibration Motor | - | Yes |
| dimensions |
| Weight (grams) | 10.3 | - |
| Width (mm) | 17.6 | 22.7 |
| Height (mm) | 40.4 | 35.8 |
| Depth (mm) | 11.95 | 12.5 |
| performance features |
| Water-Resistant Depth (metres) | - | 50 |
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