Same features. The 50 mm costs a bit more - for the screen and six extra days.
Short answer
Instinct 3 50 mm AMOLED - 1.3" 416×416 and up to 24 days. Instinct 3 45 mm AMOLED - more compact and cheaper.
Key differences
| Spec | Garmin Instinct 3 45mm AMOLED | Garmin Instinct 3 50mm AMOLED |
|---|---|---|
| Display | 1.2", AMOLED, 390×390 | 1.3", AMOLED, 416×416 |
| Memory | 4 GB | 4 GB |
| Battery life | up to 18 days | up to 24 days |
| Connectivity | Bluetooth, ANT+ | Bluetooth, ANT+ |
| Navigation | GPS, GLONASS, Galileo, QZSS, BeiDou | GPS, GLONASS, Galileo, QZSS, BeiDou |
| NFC | yes | yes |
| Sensors | heart rate, barometer, compass, gyroscope, temperature | heart rate, barometer, compass, gyroscope, temperature |
| Protection | 10 ATM | 10 ATM |
| Compatibility | iPhone, Android | iPhone, Android |
| Dimensions, weight | 45×45×14.9 mm, 53 g | 50×50×14.4 mm, 59 g |
| Price | current prices | current prices |
Specs come from the device pages on Smartphone.ua.
What's the same
AMOLED, 4 GB, GPS with BeiDou and QZSS, NFC, barometer, 10 ATM.
Display
1.2" 390×390 vs 1.3" 416×416.
Case and battery life
45 mm and 53 g vs 50 mm and 59 g; up to 18 vs up to 24 days.
Verdict: who should buy which
- Screen and battery life - Instinct 3 50 mm AMOLED.
- Compactness - Instinct 3 45 mm AMOLED.
FAQ
How thick are they?
14.9 and 14.4 mm.
Is there NFC?
Yes, on both.
Which is cheaper?
The 45 mm.