Haylou RS3 Smart Watch, Explore Real Me

Youpin Lab
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Haylou RS3Health Expert Explore Real MeSpO₂ trackingAMOLED HD displayCustomized watch faceGPS satellite positioning5 ATM water-resistance

Haylou RS3 Smart Watch Won the Gold Award of IAI Design Award (Intelligent Manufacturing Award)

Explore Endlessly

AMOLED HD display
GPS satellite positioning
SpO₂ tracking
Heart rate monitoring
Sleep monitoring
Customized watch face
5 ATM water-resistance
14 workout modes
5 ATM water-resistance
21 days battery life


Bauhaus Style Design

Haylou RS3 adopts AMOLED display and aluminum alloy frame with simple and elegant Bauhaus design, perfectly combining aesthetics and technology.

IAI Design Award
AMOLED HD display
Two buttons design
Aluminum alloy frame
Silicone strap

Customized Watch Face

Support customized watch face function. Watch faces are updated continuously to satisfy your ever-changing style.

Built-in watch faces 
APP watch faces updated continuously
Customized watch faces

SpO₂ Tracking

Blood oxygen saturation (SpO₂) is an important physiological parameter of the respiratory cycle of the human body. Check in with your body anytime.

Who should pay attention to SpO₂?


Prolonged, high-intensity use of the brain can easily cause hypoxia in the brain

Sports enthusiasts

Strenuous exercise or excessive exercise can easily cause insufficient oxygen supply in the body

People who snore

Long-term snoring may cause apnea and decreasing blood oxygen, affecting sleep quality

*Monitoring data and results are for reference only, not for diagnosis and treatment.

24 Hours Health Monitoring

Keep track of your physical condition 24 hours with upgraded optical heart rate sensor and smart health algorithm.

*Heart rate monitoring: 24 hours heart rate monitoring. Recent heart rate data can be viewed through mobile APP.

*Sleep monitoring: Automatically monitor sleep status, record sleep heart rate, analyze sleep stage and time. (Monitoring data and results are for reference only, not for diagnosis and treatment.)

*Sedentary reminder: Remind you to rest in time when maintaining a sedentary state for working or studying.

*Breathing exercises: Perform guided breathing exercises at a set rhythm to relax in time.

*Set goals every day: Complete three small goals of steps, distance and calories burnt every day to keep your body active!

Precise Sony GPS

Sony low-power GPS module can accurately locate movement track, and the GPS can work continuously for 21 hours.

High precision Sony GPS track
Low precision GPS track

14 Workout Modes

Haylou RS3 features 14 workout modes and provides professional exercise reports like a personal trainer, making for more efficient exercise.

Jogging, Fast walking, Biking, Climbing, Spinning, Yoga, Indoor running, Integrated training, Gymnastics, Basketball, Football, Rowing, Open water swimming, Swimming pool.

Outdoor exercise

Jogging, Fast walking, Biking, Climbing: Average pace/exercise heart rate/exercise track/calories burnt

Indoor exercise

Spinning, Yoga, Indoor running, Integrated training, Gymnastics, Basketball, Football, Rowing: Exercise time/exercise heart rate/calories burnt


Open water swimming, Swimming pool: Distance/main swimming style/SWOLF/average pace/stroke times/stroke frequency/calories burnt

5 ATM Water-resistance

Haylou RS3 is rated waterproof to 5 ATM with metal frame and integral moulding back shell design.

*5 ATM water-resistance. It can withstand pressure of 50 meters deep of still water for 10 minutes under normal temperature environment.

21 Days Battery Life

High-performance lithium battery. Basic battery life mode can last for 21 days on a single charge. No need to carry a charger for travel.

*Daily use mode: Turn on heart rate monitoring; sleep monitoring; message reminder; GPS for exercise; call reminders twice a day; message reminders 8 times a day; wrist-lift 150 times a day; exercise twice a week; run for 30 minutes each time GPS is turned on.

*Basic use mode: Default watch face; sleep monitoring; turn off phone Bluetooth connection, continuous heart rate monitoring and other functions.

*GPS keeps working: Turn on GPS to record exercise track; turn on heart rate monitoring.

Real Time Reminder

Connect mobile phone via Bluetooth. Instantly view calls, texts, and app notifications.

*Weather forecast:
Sync with mobile phone weather forecast. Check weather conditions of the last three days.

*Music control:
Connect to the mobile phone. Control music with the watch: play/pause, previous/next track etc

*Find phone:
Easily find your phone with the prompt tone responding from the phone.

Product Parameters

Product name: Haylou RS3
Product model: Haylou LS04
Body size: 50.5*43.4*12.5mm
Strap width: 22mm
Watch weight: 46g (with strap)
Display screen: 1.2’’ AMOLED display
Resolution: 390 X 390 pixel
Bluetooth connection: Bluetooth V5.0
Sensor: Low-power dynamic optical heart rate sensor, acceleration sensor, Sony GPS
Battery capacity: 230mAh
System requirement: Android 6.0 and above; IOS 11.0 and above (Supported functions will vary with different watches, mobile phones and countries)
Battery life: About 12 days (24 hours heart rate monitoring)
Waterproof grade: 5 ATM
Working temperature: 0℃~45℃
Synchronous data platform: Haylou Fun
Workout modes: Jogging, Fast walking, Biking, Climbing, Spinning, Yoga, Indoor running, Integrated training, Gymnastics, Basketball, Football, Rowing, Open water swimming, Swimming pool