Amazfit GTR 2 vs Huami Amazfit Stratos 3 comparison
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| key specs |
| Strap Colour | Obsidian Black | - |
| Compatible OS | Android, iOS | - |
| Dial Shape | Round | Round |
| Display Type | AMOLED | - |
| Strap Material | - | Silicone |
| general |
| Brand | Amazfit | Huami |
| Model | GTR 2 | Amazfit Stratos 3 |
| Release date | September 22, 2020 | August 27, 2019 |
| Model Name | GTR 2 | Stratos 3 |
| Dial Shape | Round | Round |
| Size | Regular | - |
| Touchscreen | Yes | Yes |
| Water Resistant | 5 ATM | 5ATM |
| Dial Material | Aluminium, Stainless Steel | Stainless Steel |
| Strap Colour | Obsidian Black | - |
| Dial Colour | Obsidian Black, Silver | - |
| Strap Material | - | Silicone |
| Water Resistance Depth | - | 50 Meters |
| Usage | - | For Sports |
| dimensions |
| Width | 46.4 | - |
| Height | 46.4 | - |
| Thickness | 10.7 | 13.4 mm |
| Weight (g) | 39.00 | 40.40 |
| Diameter | - | 48.6mm |
| product details |
| Sensor | Air pressure, Accelerometer, Gyroscope, 3-axis Geomagnetic sensor, ambient light sensor | BioTracker PPG Bio-Tracking optical sensor, 6-axis acceleration sensor, 3-axis geomagnetic sensor, Air pressure sensor |
| Compatible Device | Android, iOS | Android 5.0 or iOS 10.0 and above |
| Notification | Yes | Yes |
| Battery Life | 14 | 7 days in smart mode |
| Charge Time | 2.5 hours | 2.5 hours |
| Charger Type | Magnetic | - |
| Rechargeable Battery | Yes | - |
| Notification Type | - | Calls, Messages, App Alerts |
| Battery Type | - | Lithium-ion polymer battery |
| connectivity features |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.0 |
| Wi-Fi | Yes | Yes |
| Other Connectivity Features | NFC, Wi-Fi | - |
| GPS | - | Yes |
| platform and storage features |
| Compatible Operating System | Android, iOS | - |
| Operating System | - | Amazfit OS |
| Number of Cores | - | dual-core |
| RAM | - | 512MB |
| Processor Speed | - | 1200 |
| Internal Memory | - | 2GB |
| camera and display features |
| Display Resolution | 454x454 | 320x320 |
| Display Type | AMOLED | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | - |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | - |
| Number of Buttons | 2 | 4 |
| Other Fitness Features | BioTracker 2 PPG, bioogical data sensor | 80 Sports Modes |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |
| Audio Features | - | Standalone Music Playback |
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