HD Retina Grade AMOLED Display
The Haylou RS4 Plus with a 368*448 Pixel’s unprecedented visual clarity and 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 that can be currently available.
368*448 Pixel
1.78-inch AMOLED Display
60Hz Refresh Rate
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+
* 10+ watch faces are available at launch time, and more than 100+ other watch faces will be added gradually by the OTA upgrade.
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.
Smart SpO2 Tracking
Sleepiness and fatigue after high-intensity exercise or work are 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 diagnosis and treatment.
Smart 24-hour Heart Rate Monitoring
Haylou RS4 Plus can accurately detect your heart rate 24 hours a day and detect even slight changes, welly knowing your every heartbeat.
* Monitoring data and results are for reference only, not diagnosis and treatment.
All-Day Stress Monitoring
The Haylou RS4 Plus can monitor your pressure all day-even while sleeping. The watch is a comprehensive and easy-to-use health partner for everyone.
Female Menstrual Cycle Reminder
The menstrual period and the ovulation period can be recorded and can be more intimate reminders before coming.
* The world premiere version does not have this function. It will be added gradually by the OTA upgrade. Monitoring data and results are for reference only, not as a basis for diagnosis and medical treatment.
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.
10-day Battery Life – No Need for Recharging During Workdays
Haylou RS4 Plus packs an existence of super-powerful features in its slim body yet still has enough endurance to last for up to 10 days from a single full charge with typical usage.
10 days – Typical usage
28 days – Basic usage
* 10 days typical usage: All-day heart rate monitoring, sleep monitoring, call reminder twice a day, message reminder 100 times a day; wrist-lift to wake screen 150 times a day; exercise three times a week, run for 60 minutes each time; SpO2 tracking twice.
Technical 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 (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
