Battery life
- Fitbit Charge 6
- Up to 7 days
- Xiaomi Watch S4
- 486 mAh battery
Wearable comparison
Fitbit Charge 6 vs Xiaomi Watch S4
Compare battery life, health tracking, display and fit.
01Selected  Fitbit Charge 6
KSh 20,000Out of Stock | 02  Xiaomi Watch S4
KSh 21,940In Stock |
|---|
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2 of 4 products
Our quick verdict
The Xiaomi Watch S4, a smartwatch with a 1.43-inch OLED screen, lasts longer between charges (15 days), syncs with apps such as Strava and takes calls from the wrist, while the Fitbit Charge 6, a fitness band with a small screen, takes ECG heart-rhythm readings and is lighter to wear all day.
Portability
- Fitbit Charge 6
- 30 g
- Xiaomi Watch S4
- About 44.5 g
Display
- Fitbit Charge 6
- OLED display
- Xiaomi Watch S4
- 1.43-inch OLED display, 60 Hz, 326 ppi
Software
- Fitbit Charge 6
- Google Health
- Xiaomi Watch S4
- Xiaomi HyperOS 2
Connections
- Fitbit Charge 6
- Bluetooth LE
- Xiaomi Watch S4
- Bluetooth 5.3
Key differences
The main differences to help you choose.
Fitbit Charge 6
- ECG heart-rhythm readings.
- Lighter: 30 g (vs about 44.5 g).
- Charging: Proprietary charging cable.
Xiaomi Watch S4
- Longer battery life: up to 15 days (vs 7).
- Syncs with third-party apps such as Strava and Apple Health.
- Charging: 2-pin magnetic charging dock.
What matters most to you?
6 priorities selected.
| Priority | Fitbit Charge 6 | Xiaomi Watch S4 |
|---|---|---|
| Battery life | Up to 7 days | 486 mAh battery |
| Portability | 30 g | About 44.5 g |
| Display | OLED display | 1.43-inch OLED display, 60 Hz, 326 ppi |
| Software | Google Health | Xiaomi HyperOS 2 |
| Connections | Bluetooth LE | Bluetooth 5.3 |
| Water resistance | Water resistant to 50 m | 5 ATM |
| Sensors | Optical heart-rate monitor, 3-axis accelerometer | Heart-rate and blood-oxygen sensor, accelerometer |
| Sleep tracking | Sleep stages, sleep score | Sleep tracking |
| Charging | Proprietary charging cable | 2-pin magnetic charging dock |
| NFC | Supported | Supported (regional availability) |
| Positioning / GPS | Built-in GPS, GLONASS | GPS, galileo |
| Wrist size | Small: 130–170 mm, large: 170–210 mm | 140–210 mm (black, silver), 135–210 mm (rainbow) |
| Strap / band | Silicone infinity band, loop-and-peg closure | Fluororubber |
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 NFC.
- Both have an aluminium case.
- Both are water resistant to 50 m.
- Both have OLED displays.
- Both connect over Bluetooth.
In summary
Get the Xiaomi Watch S4 if you want longer battery life and syncing with apps such as Strava, or the Fitbit Charge 6 if you would rather have ECG heart-rhythm readings and a lighter band for all-day wear.
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