OSleep All-Scenario Sleep Monitoring Put on the OPPO Watch Free, and let it monitor your entire sleep journey, from before, during, to after bedtime. Breathe In, Breathe Out. It’s time to track your sleep quality OPPO Watch Free’s new Snore Assessment1 will combine your SpO2 and heart rate data to assess your risk of breathing problems. It’s a brand-new comprehensive sleep health guardian, right on your wrist. Big Screen, Less Weight The best of both worlds 16.7 million colors, on one big yet airy 1.64-inch screen. Watch vivid colors dance on this scratch-resistant glass with a specially engineered 2.5D curved screen. One Watch for Every Outfit Take a photo of your outfit, and our AI will customize the watch face to match your look. Show off your style, starting from your watch. New Workout? No Problem. Supports over 100 workout modes. Record your exercise levels no matter what new sport you try. 14-Day Long-lasting Battery. Charge up for the day in just 5 minutes. No need to worry about battery life since the watch can last up to 14 days under typical usage. Forgot to charge it? Don’t worry—a 5-minute charge can last an entire day.