Annadue NFC Smart Ring - 17.5 mm / 0.69 in 18.3 mm / 0.72 Inches

1. Accurate fitness health tracking - This ceramic NFC ring tracks steps, calories and workouts in real time with 99% precision and helps you effortlessly stop your fitness goals. 2. Safer NFC access payments - The Smart Health Ring has an NFC chip for instant access control, contactless payments and data exchange - no more carrying keys or cards! 3. Swim shower proof (5ATM IP68) - This waterproof fitness tracker ring keeps rain, swimming and daily hand washing without damage. Fast magnetic charging (1 hour full charge) – with a magnetic charging smart ring, simply snap it onto the dock for a quick power-up (20 mAh battery) and enjoy days of continuous use. 5. Ultra light weight durable ceramic - only 3-5 g, this lightweight steplime ring combines a slim ceramic design with robust durability for the whole day. 20 mAh (shipped with). Wows to use: Wear it, download the app, connect via Bluetooth and you are ready to use.