Haylou RS4 Smartwatch. The wearable is a fitness tracker that got a square design with a 1.78-inch AMOLED display and is equipped with a Heart rate monitor, Spo2 blood oxygen monitor, 12 sports modes, IP68 waterproof, and supports Alipay offline payment.
Haylou RS4 is specially made for sports. Easily check information with the 1.78″ large touch control display.
368*448 resolution: Ultra-high resolution and faster response speed
Large-size screen: Clear and stunning
AMOLED HD display: Delicate and fine-textured
Display 1.78″ (368 x 448) AMOLED display
Battery Battery capacity: 230 mAh About 12 days (24 hours heart rate monitoring)
Connectivity Bluetooth V5.1
OS Android 6.0 and above, iOS 11.0 and above. Supported functions will vary with different watches, mobile phones, and countries.
Sensor Heart rate sensor, motion sensor, blood oxygen sensor
Others System requirement: Android 6.0 and above, iOS 11.0 and above. Supported functions will vary with different watches, mobile phones, and countries.
Weight Watch weight 48.6g (with strap)
Dimension 45.2 x 37.2 x 11.1mm Strap width: 20mm
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