| Feature | Fitbit Inspire 3 (Walmart) | Fitbit Charge 4 (Amazon) | Haylou Smart Watch 2 (AliExpress) |
|---|---|---|---|
| Price Range | $$ | $$$ | $ |
| Display Type | Greyscale OLED | Grayscale OLED | TFT Color Screen |
| Health Tracking | Heart rate, Sleep | Heart rate, Sleep, Activity | Heart rate, Sleep, Blood Oxygen |
| GPS | No | Built-in GPS | No |
| Water Resistance | Up to 50 meters | Up to 50 meters | IP68 |
| Battery Life | Up to 10 days | Up to 7 days | Up to 20 days |
| Connectivity | Bluetooth | Bluetooth | Bluetooth |
| Compatibility | Android, iOS | Android, iOS | Android, iOS |
| Special Features | Sleep Score, Fitness Tracking | Active Zone Minutes, Swim Tracking | Sleep Monitoring, Sports Modes |