Haylou LS11 / RS4 Plus Smart Watch IP68 / SpO2 (XIAHAYLS11PSWBLK)

BIGGER THAN EVER

1.78" Retina AMOLED Display
368*448 Pixels
Metal Craftsmanship
105 Sports Modes
100+ Online Watch Faces
Customized Watch Face
SpO2 & Heart Rate Monitoring
Sleep Monitoring
Temperature Monitoring

HD Retina Grade AMOLED Display
With 368*448 pixels of 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 rare for round smartwatches currently available.

368*448 Pixels
1.78-inch AMOLED Display
60Hz Refresh Rate

Magnetic Strap is Comfortable to Wear
It can be quickly detached and is comfortable to wear and remove. Ideal for those concerned about buckle types or strap size mismatches.
100+ Online Watch Faces to Suit Your Style
More than 100+ stylish watch faces, or even upload your own photo as the background image for true personalization.
* 10+ watch faces are available at launch, and more than 100+ other watch faces will be added gradually via OTA upgrades.
100+ Sport Modes - A Trusted Fitness Partner
The Haylou RS4 Plus features 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
The Haylou RS4 Plus offers various UI operations: a cellular model and 360° unrestrained smooth sliding. Express your personality and suit your style.
Smart Sleep Monitoring with Deep Sleep Recording Helper
The percentage of deep sleep is an essential criterion for sleep quality. The Haylou RS4 Plus actively monitors sleep time and status to help you develop good sleep habits.
Smart SpO2 Tracking
Sleepiness and fatigue after high-intensity exercise or work can be caused by insufficient oxygen in the body. Raise your wrist to test your blood oxygen level and keep your health under control.
* Monitoring data and results are for reference only, not for diagnosis or treatment.
Smart 24-hour Heart Rate Monitoring
The Haylou RS4 Plus can accurately detect your heart rate 24 hours a day and detect even slight changes, staying well-informed of your every heartbeat.
* Monitoring data and results are for reference only, not for diagnosis or treatment.
All-Day Stress Monitoring
The Haylou RS4 Plus can monitor your stress levels all day—even while sleeping. The watch is a comprehensive and easy-to-use health partner for everyone.
Female Menstrual Cycle Reminder
Menstrual and ovulation periods can be recorded, providing intimate reminders before they arrive.
* The world premiere version does not include this function. It will be added gradually via OTA upgrades. Monitoring data and results are for reference only, not as a basis for diagnosis or medical treatment.
IP68 Dustproof and Waterproof
The watch is IP68 waterproof. There is no need to remove the watch when washing your hands, and it can easily handle sweat during workouts or heavy rain when you are outdoors.
10-day Battery Life - No Need to Recharge During Workdays
The Haylou RS4 Plus packs super-powerful features into its slim body, yet still has enough endurance to last up to 10 days from a single full charge under typical usage.

10 days - Typical usage
28 days - Basic usage

* 10 days typical usage: All-day heart rate monitoring, sleep monitoring, call reminders twice a day, message reminders 100 times a day; wrist-lift to wake screen 150 times a day; exercise three times a week, running for 60 minutes each time; SpO2 tracking twice.
Specifications:

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 (With 24-hour heart rate monitoring enabled)
Water-resistance grade: IP68
Operating temperature: 0°C~45°C
Data sync platform: Haylou Fun
Workout modes: 105 modes