Sony WENA Active Smart Fitness Strap | GPS, Optical Heart Rate Sensor, Payment All of the latest smart features are incorporated into the smart wena strap, including a GPS and heartbeat sensor, giving you complete freedom to run your active life from your wrist. Wena wrist active lets you make purchases through contactless payments, check calls, notifications or messages as well as monitor your health. Wena wrist active combines the beauty of analogue timepieces with the convenience of technology. Designed in silicone rubber, you can use it as a a smart band while jogging or sleeping or add a watch face to convert it into a sporty smart watch. Just choose amongst the wena watch faces or even add your own favourite watch face to create a personalised smartwatch thats literally like no other. 3 bar waterproof performance keeps the smart strap safe in the shower or in the swimming pool. The newly developed contactless payment module is moisture and drip-proof too, securely protected from humidity, rain and spills. A crystal clear, compact OLED display delivers all the information you need, when you need it. No need for nightly charging. Stay connected with notifications, and track all your activities for up to a full week between charges.