The COLMI P28 Plus Smart Watch is a high-quality wearable technology device that is perfect for fitness enthusiasts and anyone who wants to stay on top of their health. With a 1.69 inch HD display and 240 × 280 resolution, this smartwatch provides clear and vibrant visuals. It comes with 28 sport modes, allowing you to track your workouts and monitor your progress. The heart rate monitor and blood oxygen measurement features help you keep track of your health and fitness levels. The watch is sweat-proof and has an IP67 water resistance rating, making it perfect for use during intense workouts or outdoor activities. The watch also has a pedometer, sleep monitor, music player, music control, phone call, clock display, and heart rate tracking functions. The strap is made of high-quality silicon, ensuring durability and comfort. The battery life is impressive, with a 235mAh battery included. This smartwatch does not have a SIM slot and does not support SIM cards. Overall, the COLMI P28 Plus Smart Watch is a great investment for anyone looking to improve their fitness and health.