Sleepiness and fatigue after high-intensity exercise or work is a sign of 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.
Heart Rate Monitoring
Haylou RS4 can accurately detect your heart rate 24 hours a day and detect even slight change, welly knowing your every heartbeat.
* Monitoring data and results are for reference only, not for diagnosis.
Sleep Monitoring
The percentage of deep sleep is an important criterion of sleep quality. Haylou RS4 actively monitors sleep time and status to help you develop good sleep habits.
Breathing Training
Perform guided breathing exercises at a set rhythm to alleviate stress anytime and anywhere, easily restoring vitality.
Alipay Offline Payment
The watch supports Alipay offline payment. Forget to take your phone and wallet? Swipe left on the homepage to enter the scanning code page, raise your wrist to make the payment.
10 Days Battery Life
Battery life can last up to 10 days in daily use mode, and it can be used for about 25 days in basic use mode, saving the trouble of daily charging.
12 days
Daily use mode
20 days
Basic use mode
* Daily mode: heart rate monitoring; sleep monitoring; call reminders twice a day; message reminders 8 times a day; wrist-lift 150 times a day; exercise twice a week, run for 60 minutes each time.
* Basic mode: default watch face; sleep monitoring; turn off phone Bluetooth connection, continuous heart rate monitoring, and other functions.
* Basic mode: default watch face; sleep monitoring; turn off phone Bluetooth connection, continuous heart rate monitoring, and other functions.
Real-time Message Reminder
Connect to mobile phone via Bluetooth. Calls, WeChat, and various APP information can be synchronized with the watch in real-time so that you don’t miss every important moment.
IP68 Waterproof
The Haylou RS4 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.
* Meet the requirements of IP68 protection level of IEC 60529:2013 standard. It can meet daily waterproof needs and be worn and used during workouts (can be exposed to sweat), rainy days, and handwashing; do not wear for swim, shower, sauna, surfing, and other high-speed water activities. Damage caused by immersing the device in liquid when used in an inapplicable scenario is not covered by the warranty.
Product name: Haylou RS4
Bluetooth connection: Bluetooth V5.1
Main body size: 45.2*37.2*11.1mm
Sensors: Heart rate sensor, motion sensor, blood oxygen sensor
Strap width: 20mm
Watch weight: 48.6g (with strap)
Display: 1.78″ AMOLED display
Resolution: 368×448
Battery capacity: 230mAh
Battery life: About 12 days (24 hours heart rate monitoring)
System requirement: Android 6.0 and above, iOS 11.0 and above. Supported functions will vary with different watches, mobile phones, and countries.
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