boAt Chrome Horizon, Video Watch Faces, 1.51” AMOLED Display, HRV & VO2 Max, Auto-Activity Detection, ASAP Charge, Advanced Bluetooth Calling, IP68, HR & SpO2 Monitor Smart Watch(Midnight Black) : Amazon.in: Electronics

Add Videos as Watch Faces: Make your watch uniquely yours by setting a 3-5 second video from your gallery as your watch face. Plus, explore a wide range of watch faces from the Cloud and Custom Watch Face Studio to add a dynamic touch to your display.
Heart Rate Variability (HRV) Tracking: Gain more profound insights into your heart rate fluctuations with HRV tracking. It allows you to get deeper insights into the everyday stress levels, helping you stay in control of your health.
1.51” (3.83 cm) AMOLED Display with BT Calling: Enjoy vivid and sharp visuals on the 3.83 cm (1.51”) AMOLED display. With built-in Bluetooth calling, you can answer and make calls directly from your wrist.
ASAP Charge & Functional Crown: Your smartwatch fully charges in 45 minutes and lasts up to 7 days. It features a Functional Crown—just twist to scroll through menus, notifications, and apps with ease.
Quick Replies, Auto- Activity Detection(Walking & Running), Health & Fitness(HR, SpO2, Stress & Sleep), Multiple Sports Modes with IP68