Battery life
- Amazfit GTR 3 Pro
- 450 mAh battery
- Fitbit Charge 6
- Up to 7 days
Wearable comparison
Amazfit GTR 3 Pro vs Fitbit Charge 6
Compare battery life, health tracking, display and fit.
01Selected  Amazfit GTR 3 Pro
KSh 20,000Out of Stock | 02  Fitbit Charge 6
KSh 20,000Out of Stock |
|---|
Add to comparison
2 spaces available
Huawei Watch Fit 5KSh 18,500
Samsung Galaxy Watch FEKSh 19,500
AmazFit Active EdgeKSh 17,000
AmazFit BalanceKSh 22,000
Amazfit Active MaxKSh 24,000
Amazfit GTS 4KSh 18,500
Amazfit Active 2 RoundKSh 16,500
2 of 4 products
Our quick verdict
The Fitbit Charge 6, a fitness band with a small screen, takes ECG heart-rhythm readings and is lighter to wear all day, while the Amazfit GTR 3 Pro, a smartwatch with a 1.45-inch OLED screen, lasts longer between charges (12 days vs 7 days), syncs with apps such as Strava and takes calls from the wrist.
Portability
- Amazfit GTR 3 Pro
- 32 g
- Fitbit Charge 6
- 30 g
Display
- Amazfit GTR 3 Pro
- 1.45-inch OLED display, 331 ppi
- Fitbit Charge 6
- OLED display
Software
- Amazfit GTR 3 Pro
- Zepp OS
- Fitbit Charge 6
- Google Health
Connections
- Amazfit GTR 3 Pro
- Bluetooth 5.0
- Fitbit Charge 6
- Bluetooth LE
Key differences
The main differences to help you choose.
Amazfit GTR 3 Pro
- Longer battery life: up to 12 days (vs 7 days).
- Syncs with third-party apps such as Strava and Apple Health.
- Charging: Magnetic charging.
Fitbit Charge 6
- Lighter: 30 g (vs 32 g).
- ECG heart-rhythm readings.
- Charging: Proprietary charging cable.
What matters most to you?
6 priorities selected.
| Priority | Amazfit GTR 3 Pro | Fitbit Charge 6 |
|---|---|---|
| Battery life | 450 mAh battery | Up to 7 days |
| Portability | 32 g | 30 g |
| Display | 1.45-inch OLED display, 331 ppi | OLED display |
| Software | Zepp OS | Google Health |
| Connections | Bluetooth 5.0 | Bluetooth LE |
| Water resistance | 5 ATM | Water resistant to 50 m |
| Sensors | BioTracker 3.0 PPG, 6 PD + 2 LED | Optical heart-rate monitor, 3-axis accelerometer |
| Sleep tracking | Sleep stages including REM, naps | Sleep stages, sleep score |
| Charging | Magnetic charging | Proprietary charging cable |
| Health & wellness features | Heart rate, spO₂ | Heart rate, blood oxygen |
| Wrist size | 155–218 mm | Small: 130–170 mm, large: 170–210 mm |
| Strap / band | 22 mm leather or fluororubber | Silicone infinity band, loop-and-peg closure |
Tick a topic above to see how each product answers it.
Detailed comparison
Explore the full specifications, section by section.
These products have the same published specifications.
Similarities
- Both have an aluminium case.
- Both are water resistant to 50 m.
- Both have OLED displays.
- Both connect over Bluetooth.
In summary
Get the Fitbit Charge 6 if you want ECG heart-rhythm readings and a lighter band for all-day wear, or the Amazfit GTR 3 Pro if you would rather have longer battery life and syncing with apps such as Strava.
Back to compared products ↑In-stock alternatives
Related comparisons
Amazfit GTR 3 ProHuawei Watch Fit 5Amazfit GTR 3 ProSamsung Galaxy Watch FEAmazfit GTR 3 ProAmazFit Active EdgeAmazfit GTR 3 ProAmazFit BalanceAmazfit GTR 3 ProAmazfit Active MaxAmazfit GTR 3 ProAmazfit GTS 4Amazfit GTR 3 ProAmazfit Active 2 RoundAmazfit GTR 3 Pro
Amazfit Active 2 Premium RoundAmazfit GTR 3 Pro
Amazfit Active 3 Premium