• Product Overview: The Haylou RS4 Plus is a premium smartwatch featuring a 1.78-inch Retina AMOLED display with a smooth 60Hz refresh rate and 368x448 resolution. Encased in a lightweight metallic bezel paired with a magnetic strap, it offers a stylish design and comfort for all-day wear. Equipped with health-tracking sensors, the RS4 Plus provides 24-hour heart rate monitoring, blood oxygen (SpO2) tracking, sleep analysis, and stress monitoring. With 105 sports modes, IP68 dust and water resistance, customizable watch faces, and up to 10 days of battery life under typical usage, the Haylou RS4 Plus serves as a versatile daily fitness and lifestyle companion. • Key Highlight 1: 1.78" Retina AMOLED Display - Bright AMOLED display featuring a 60Hz refresh rate and 368x448 resolution for clear visuals and fluid touch navigation. • Key Highlight 2: Premium Magnetic Strap Design - Crafted with a metallic bezel and a convenient quick-adjust magnetic strap for a secure fit. • Key Highlight 3: All-Round Health Tracking - Continuous 24/7 heart rate monitoring, SpO2 blood oxygen measurement, sleep stage tracking, and stress tracking. • Key Highlight 4: 105 Sports Modes & IP68 Rating - Comprehensive activity tracking across 105 workout modes, protected by IP68 water and dust resistance.