Haylou RS4 Plus Smartwatch

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  • 1.78″ Retina AMOLED Display, 368*448 Pixel
  • Bluetooth 5.1
  • Craft with Metal
  • 105 Sports Mode
  • 100+ Online Watch Faces & Customized Watch Face
  • SpO2 Heart rate
  • Sleep Monitor
  • Temperature Monitoring
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Haylou RS4 Plus Smartwatch

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HD Retina Grade AMOLED Display

With 368*448 Pixel’s unprecedented visual clarity, the large 1.78-inch screen provides a precise and clear experience anytime, anywhere. The 60Hz refresh rate continues to optimize the user experience, which is rarely for round smartwatches that can be currently available.

Magnetic Strap is Comfortable to Wear

It can be quickly taken apart and is comfortable to wear and take off. Suitable for people worried about the belt buckle and hole size mismatch.

100+Online Watch Faces to Suit your style

More than 100+ stylish watch faces, or even upload your photo as the background image for true personalization.

100+ Sport Modes –
A Trusted Fitness Partner

Haylou RS4 Plus has 105 workout modes. It can record real-time exercise data, helping you track and improve your athletic performance.

Multi UI Main Menu According to Your Style

Haylou RS4 Plus has various kinds of UI operations: a cellular model and 360° unrestrained smooth sliding. Show personality and suit your style.

Smart Sleep Monitoring with Deep Sleep Recording Helper

The percentage of deep sleep is an essential criterion of sleep quality. Haylou RS4 Plus actively monitors sleep time and status to help you develop good sleep habits.

IP68 Dustproof and Waterproof

The watch is IP68 waterproof. There is no need to take off the watch when washing your hands, and you can easily cope with sweating during workouts or stormy rains when you are out.


  • Product name Haylou RS4 Plus
  • Bluetooth version Bluetooth 5.1
  • Supported devices Android 6.0 or iOS 11.0 and above
  • Dimensions 45.2*37.2*10.4mm
  • Strap width 20mm
  • Weight 57.6g (with strap)
  • Display 1.78″ AMOLED display
  • Resolution 368x448px
  • Sensors Heart rate sensor, motion sensor, SpO2 sensor
  • Battery capacity 230mAh
  • Battery life About 10 days (Turn on heart rate monitoring for 24 hours)
  • Water-resistance grade IP68
  • Operating temperature 0°C~45°C
  • Sync data platform Haylou Fun
  • Workout modes 105 modes

Additional information


Black, Gold, Silver