Realme TechLife Watch R100 vs Amazfit T-Rex comparison
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| key specs |
| Display Size | 33mm | - |
| Compatible OS | Android 6.0+, iOS 9+ | iOS, Android |
| Strap Material | Silicone | - |
| Dial Shape | Round | Round |
| Ideal For | Unisex | Unisex |
| general |
| Brand | Realme | Amazfit |
| Model | TechLife Watch R100 | T-Rex |
| Release date | June 23, 2022 | January 8, 2020 |
| Dial Shape | Round | Round |
| Strap Material | Silicone | - |
| Size | Regular | - |
| Touchscreen | Yes | Yes |
| Interchangeable Strap | Yes | - |
| Water Resistant | IP68 | Yes |
| Ideal For | Unisex | Unisex |
| Model Name | - | Amazfit T-Rex |
| Water Resistance Depth | - | 50 metres |
| dimensions |
| Weight (g) | 46.00 | 58.00 |
| Width | - | 47.7 |
| Height | - | 47.7 |
| Thickness | - | 13.5 |
| product details |
| Sensor | Heart Rate | Accelerometer, Heart Rate Sensor |
| Compatible Device | Android, iPhone | - |
| Notification | Yes | - |
| Notification Type | Calls, messages, select apps | - |
| Battery Life | 7 days | 20 days |
| Charge Time | 2 hours | - |
| Charger Type | Magnetic | - |
| Rechargeable Battery | Yes | - |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 5.0 |
| Wi-Fi | No | Yes |
| GPS | No | Yes |
| Messaging Support | - | Yes |
| Email Support | - | Yes |
| platform and storage features |
| Compatible Operating System | Android 6.0+, iOS 9+ | iOS, Android |
| camera and display features |
| Display Resolution | 360x360 | - |
| Display Size | 33mm | - |
| Other Display Features | 450 nits peak brightness | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Chronograph | Yes | - |
| Date & Time Display | Yes | Yes |
| Other Fitness Features | 24-hour heart rate monitoring, sleep monitoring, blood oxygen (SpO2), water reminder, stress monitoring, female health | - |
| Calorie Count | - | Yes |
| Language | - | English |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |
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