The Lemfo MK66 is a rugged and durable smartwatch designed for active lifestyles. It features a clear 1.85-inch TFT display and a robust 400 mAh battery that provides long-lasting performance. With IP68 water resistance, it is well-suited for daily wear, handling sweat and water splashes with ease. Stay connected with Bluetooth 5.0 for calls and notifications, and monitor your wellness with built-in heart rate, sleep, and blood oxygen tracking sensors.