This Chereeki Black-2 fitness tracker watch is the perfect accessory for fitness enthusiasts. With its IP68 waterproof feature, it can withstand sweat and water splashes, making it ideal for outdoor workouts. The watch is equipped with a heart and sleep monitor, allowing you to keep track of your heart rate and sleep patterns.

The 25mm stainless steel case and rubber band in black give the watch a sleek and stylish look. It is compatible with both iOS and Android operating systems, and features Android Wear operating system. This fitness tracker watch is perfect for those who want to stay on top of their fitness goals without compromising on style.