The Haylou RT2 LS10 watch case is curved to the wrist's shape, and therefore the watch unexpectedly fits comfortably on the wrist. The breathable silicone strap is also comfortable for workouts and everyday wear. With a 1.32" 360x360px round screen with excellent viewing angles. You can quickly change watch faces from the application, choosing the right one at the moment. New watch faces appear in the application regularly. The watch has 12 built-in sports modes to help make your workouts more effective. You can receive notifications and reminders from your smartphone. The watch connects to the phone via Bluetooth 5.0. The watch has long battery life. They can work up to 20 days on a single charge in economy mode and up to 12 days on a single charge in 24/7 heart rate monitoring mode. The watch is protected from dust and water according to the IP68 standard. 12 days of endurance, 20 days of stable standby SpO2 tracking = Haylou RT2 supports blood oxygen testing Wrist optical heart rate = 24-hour heart rate monitoring Breathable silicone strap = Skin-friendly and silky Identify sleep conditions = Sleep with you Support 12 sport modes = Collaborate your passionate sports IP68 waterproof = Wear it every day without fear 1.32-inch touch screen = HD and exquisite panoramic view 5.0 Bluetooth transmission = More stable signal reception