| key specs |
| Strap Colour | Midnight Black, Flamingo Pink, Sage Green | - |
| Compatible OS | Android, iOS | - |
| Strap Material | Silicone | Silicone |
| Dial Shape | Rectangle | Round |
| Display Type | AMOLED | - |
| Ideal For | Unisex | - |
| general |
| Brand | Amazfit | Huami |
| Model | GTS 2 mini | Amazfit Stratos 3 |
| Release date | December 1, 2020 | August 27, 2019 |
| Model Name | GTS 2 mini | Stratos 3 |
| Dial Shape | Rectangle | Round |
| Strap Material | Silicone | Silicone |
| Size | Regular | - |
| Interchangeable Strap | Yes | - |
| Water Resistant | Yes | 5ATM |
| Water Resistance Depth | 5 ATM | 50 Meters |
| Dial Material | Aluminum alloy, classic-stainless steel | Stainless Steel |
| Ideal For | Unisex | - |
| Strap Colour | Midnight Black, Flamingo Pink, Sage Green | - |
| Dial Colour | Midnight Black, Flamingo Pink, Sage Green | - |
| Touchscreen | - | Yes |
| Usage | - | For Sports |
| dimensions |
| Width | 35.8 | - |
| Height | 40.5 | - |
| Thickness | 8.95 | 13.4 mm |
| Weight (g) | 19.50 | 40.40 |
| Diameter | - | 48.6mm |
| product details |
| Sensor | Huami self-developed BioTracker 2 PPG (support blood-oxygen) biological data sensor, Accelerometer, Gyroscope, 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, iPhone | Android 5.0 or iOS 10.0 and above |
| Notification | Yes | Yes |
| Battery Type | 220mAh | Lithium-ion polymer battery |
| Battery Life | 14 days | 7 days in smart mode |
| Charge Time | About 2 hours | 2.5 hours |
| Charger Type | Charging base | - |
| Rechargeable Battery | Yes | - |
| Notification Type | - | Calls, Messages, App Alerts |
| connectivity features |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 BLE | 5.0 |
| Wi-Fi | - | Yes |
| 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 | 354x306 | 320x320 |
| Display Type | AMOLED | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | - |
| Alarm Clock | Yes | Yes |
| Chronograph | Yes | - |
| Date & Time Display | Yes | - |
| Number of Buttons | 1 | 4 |
| Calorie Count | - | Yes |
| Other Fitness Features | - | 80 Sports Modes |
| audio and video features |
| Audio Features | - | Standalone Music Playback |