Prices are almost identical. The Watch 4 has a sharper screen and a bigger battery, the S6 a bigger screen and SpO2.
Short answer
Haylou Watch 4 - a sharper 320×380 display, 380 mAh. Haylou Watch S6 - 2.01", SpO2, lighter (40 g) and slightly cheaper.
Key differences
| Spec | Haylou Watch 4 | Haylou Watch S6 |
|---|---|---|
| Display | 1.93", TFT, 320×380 | 2.01", TFT, 240×296 |
| Battery life | up to 7 days | up to 7 days |
| Battery | 380 mAh | 270 mAh |
| Connectivity | Bluetooth | Bluetooth |
| NFC | — | no |
| Sensors | heart rate | heart rate, SpO2 |
| Protection | IP68 | IP68 |
| Compatibility | Android 9.0+ / iOS 13.0+ | Android 9.0+, iOS 11.0+ |
| Dimensions, weight | 47.6×38.8×11.8 mm, 45 g | 49×38×11.12 mm, 40 g |
| Price | current prices | current prices |
Specs come from the device pages on Smartphone.ua.
What's the same
TFT, up to 7 days, heart rate, IP68, no GPS.
Display
1.93" 320×380 vs 2.01" 240×296.
Battery
380 vs 270 mAh.
Verdict: who should buy which
- Sharp screen - Haylou Watch 4.
- SpO2 and price - Haylou Watch S6.
FAQ
Is battery life the same?
Yes, up to 7 days.
How heavy are they?
45 and 40 g.
Which is cheaper?
The Watch S6.