Haylou RS4 Plus GPS

1.78”AMOLED display & 60Hz refresh rate,100+ online watch faces(view mode switching),105 sports modes. Silicone strap, all-day heart tracking,spo2, and temperature monitoring, IP68 waterproof. 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 silicone strap is comfortable to wear, It can be quickly taken apart and is comfortable to wear and take off.100+Online watch faces suiting your style, with more than 100+ stylish watch faces, or even upload your own photo as the background image for true personalization. 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 suits your style, three kinds of UI operations such s cellular model. Smart sleep monitoring-deep sleep recording helper. Smart spo2 tracking. Smart 24-hour heart rate monitoring. IP68 dustproof and waterproof,10-day battery life no need for recharging during workdays.