N/A Smart Ring Sleep Tracking - Heart Rate Fitness Tracker Waterproof size 9 black

The Smart Ring Sleep Tracking is a black, waterproof fitness tracker designed to track various metrics such as heart rate, speed, cadence, calories, and distance. It is made of stainless steel and metal, with a battery life of 5-7 days and a standby time of 15 days. This activity tracker is suitable for both indoor and outdoor activities, and it provides measurements in English, Italian, French, German, and Spanish. It features Bluetooth connectivity, heart rate monitoring, and sleep tracking, making it a versatile tool for gym training, yoga, and running. With a warranty of 1 month, this smart ring is a convenient and reliable accessory for fitness enthusiasts.