| Brand | Haylou |
| Model | RS4 Plus |
| Device Type | Smart Watch |
| Release Date | 26 March 2022 |
| Status | Available |
| Operating System | Android |
| OS Version | v6.0 |
| Display Type | AMOLED |
| Screen Size | 1.78 inches |
| Resolution | 368x448 pix |
| Refresh Rate | 60 Hz |
| Height | 45.2 mm |
| Width | 37.2 mm |
| Thickness | 10.4 mm |
| Weight | 57.6 grams |
| Colors | Black, Gold, Silver |
| Waterproof | Water resistant |
| IP Rating | IP68 |
| Text Message | Yes |
| Incoming Call | Yes |
| Alarm | Yes |
| Calendar Reminder | Yes |
| Timer | Yes |
| Weather | Yes |
| Battery type | Li-Poly (Lithium Polymer) |
| Capacity | 230 mAh |
| Quick Charging | 2pin magnetic Cable |
| Placement | Non-removable |
| StandBy Time | 5 to 7days |
| Internal Storage | 512 MB |
| RAM | 256 MB |
| Bluetooth | v5.1 |
| Made By | China |
| Features | 24-hour heart rate monitoring, SpO2 tracking, Temperature detection, Smart sleep monitoring |
