• HD Retina Grade AMOLED Display: With 368*448 Pixel unprecedented visual clarity, the large 1.78-inch screen provides you with 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 currently available
• Magnetic Strap 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+ 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
• 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
• IP68 Dustproof and Waterproof: The watch is IP68 waterproof. 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

Specifications:

• Dimensions: 45.2 x 37.2 x 10.4mm
• Strap width: 20mm
• Weight: 57.6g (with strap)
• Display: 1.78" AMOLED display
• Resolution: 368x448
• Bluetooth: Bluetooth Ver: 5.1
• Sensors: Heart rate sensor, motion sensor, SpO2 sensor
• Battery capacity: 230mAh
• Supported devices: Android 6.0 or iOS 11.0 and above
• Battery life: About 10 days (Turn on heart rate monitoring for 24 hours)
• Water-resistance grade: IP68
• Operating temperature: 0℃~45℃
• Sync data platform: Haylou Fun
• Workout modes: 105 modes