Garmin Instinct 3 vs Amazfit T-Rex 3 comparison
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| key specs |
| Display Size | 45mm | 48mm |
| Dial Shape | Round | Round |
| Display Type | AMOLED | - |
| Ideal For | Unisex | Unisex |
| Strap Material | - | Silicone |
| general |
| Brand | Garmin | Amazfit |
| Model | Instinct 3 | T-Rex 3 |
| Release date | April 3, 2025 | September 18, 2024 |
| Dial Shape | Round | Round |
| Touchscreen | 1.2 | 1.5 |
| Water Resistant | 10 ATM | 10 ATM |
| Water Resistance Depth | 100m | - |
| Usage | Regular, Sports, Adventure Sports | Regular |
| Ideal For | Unisex | Unisex |
| Strap Material | - | Silicone |
| Size | - | Regular |
| dimensions |
| Width | 45 | 48.5 |
| Height | 45 | 48.5 |
| Thickness | 14.9 | - |
| Weight (g) | 52.00 | 68.30 |
| Diameter | - | 13.75 |
| product details |
| Sensor | heart rate, SpO2, steps, sleep tracker | heart rate, SpO2, steps, sleep tracker, EDA |
| Battery Life | 28 days | - |
| connectivity features |
| Bluetooth | Yes | Yes |
| GPS | - | Yes |
| platform and storage features |
| Internal Memory | 64GB | - |
| camera and display features |
| Display Resolution | 390x390 | 480 x 480 |
| Display Size | 45mm | 48mm |
| Display Type | AMOLED | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | - |
| Language | English | English |
| Date & Time Display | - | Yes |
| Number of Buttons | - | 4 |
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