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| key specs | ||||
| Display Type | AMOLED | AMOLED | ||
| Water Resistant | Yes | Yes | ||
| Heart Rate Monitor | Yes | Yes | ||
| Compatible Devices | iOS 12.2 or higher, Android OS 8.0 or higher | Android, iOS Phones | ||
| Battery Life (Days) | 7 | 20 | ||
| general | ||||
| Brand | Fitbit | Mi | ||
| Model | Charge 5 | Smart Band 4 | ||
| Release date | August 25, 2021 | - | ||
| Model Name | Fitbit Charge 5 | Band 4 | ||
| Color | Graphite and Black, Platinum and Steel Blue, and Gold and Lunar White | Black | ||
| Reading Type | Digital | - | ||
| Ideal For | Unisex | Unisex | ||
| Suitable For | Sports, Fitness | Health, Lifestyle | ||
| Touch Enabled | Yes | Yes | ||
| Water Resistant | Yes | Yes | ||
| Material | - | Thermoplastic | ||
| Dial Shape | - | Rectangle | ||
| display and battery features | ||||
| Display Type | AMOLED | AMOLED | ||
| Battery Life (Days) | 7 | 20 | ||
| Battery Type | Lithium Polymer (Li-poly) | Lithium Ion (Li-ion) | ||
| Charge Time (hours) | 2 | 2 | ||
| Display Resolution | - | 120 x 240 RGB | ||
| Battery Capacity (mAh) | - | 135 | ||
| performance features | ||||
| Water-Resistant Depth (metres) | 50 | 50 | ||
| Shock Resistant | - | Yes | ||
| connectivity features | ||||
| Bluetooth Enabled | Yes | Yes | ||
| Wi-Fi Enabled | - | No | ||
| Bluetooth Version | - | v5.0 | ||
| compatibility | ||||
| Compatible Devices | iOS 12.2 or higher, Android OS 8.0 or higher | Android, iOS Phones | ||
| activity tracking function | ||||
| Alarms | Yes | - | ||
| Automatic Exercise Detection | Yes | - | ||
| Calories Burned | Yes | Yes | ||
| Distance Covered | Yes | Yes | ||
| Do Not Disturb Mode | Yes | - | ||
| Heart Rate Monitor | Yes | Yes | ||
| Phone Notifications | Yes | Yes | ||
| Reminders | Yes | - | ||
| Sedentary Reminder | Yes | - | ||
| Sleep Tracking | Yes | Yes | ||
| SPO2 Monitor | Yes | - | ||
| Step Counter | Yes | Yes | ||
| sensors | ||||
| Accelerometer | Yes | Yes | ||
| Ambient Light Sensor | Yes | - | ||
| Barometric Altimeter | Yes | - | ||
| ECG | Yes | - | ||
| Optical Heart Rate Sensor | Yes | Yes | ||
| Vibration Motor | Yes | - | ||
| Gyroscope | - | Yes | ||
| 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 | ||
| dimensions | ||||
| Weight (grams) | - | 22.1 | ||
| Width (mm) | - | 45.72 | ||
| Height (mm) | - | 12.7 | ||
| Depth (mm) | - | 17.78 | ||