Both are rated 10 ATM and last around 16-17 days. The Amazfit costs more but offers much more.
Short answer
Amazfit T-Rex 3 Pro 44mm - AMOLED 466×466, titanium, dual-frequency GNSS, SpO2, Wi-Fi. Garmin Instinct E - a simple MIP display and much cheaper.
Key differences
| Spec | Garmin Instinct E 45mm | Amazfit T-Rex 3 Pro 44mm |
|---|---|---|
| Display | MIP, 176×176 | 1.32", AMOLED, 466×466 |
| Memory | 128 MB | — |
| Battery life | up to 16 days | up to 17 days |
| Battery | — | 500 mAh |
| Connectivity | Bluetooth, ANT+ | Bluetooth, Wi-Fi 2.4 GHz |
| Navigation | GPS, GLONASS, Galileo | GNSS (L1 + L5) |
| NFC | no | — |
| Sensors | heart rate, barometer, compass, temperature | heart rate, SpO2, barometer, compass, gyroscope, temperature |
| Protection | 10 ATM | 10 ATM |
| OS | — | Zepp OS |
| Compatibility | iPhone, Android | Android 7.0+, iOS 15.0+ |
| Dimensions, weight | 45×45×14.2 mm, 48 g | 44.8×44.8×13.2 mm, 46.8 g |
| Price | current prices | current prices |
Specs come from the device pages on Smartphone.ua.
Display
MIP 176×176 vs AMOLED 466×466.
Navigation
GPS, GLONASS, Galileo vs L1 + L5.
What's the same
10 ATM, barometer, compass, about 47 g.
Verdict: who should buy which
- More features - Amazfit T-Rex 3 Pro.
- The lowest price - Garmin Instinct E.
FAQ
Is there NFC?
Not on the Instinct E; not stated for the Amazfit.
What is the battery life?
Up to 16 and up to 17 days.
Which is cheaper?
The Instinct E.