Take advantage of the hands-free feature and stay connected with the Bluetooth 5.0 Technology. The XWatch-B19 also features a heart rate sensor, pedometer sensor, blood oxygen level sensor, and sleep tracker to help you live a healthier life. Its 1.9-inch display makes it easier to see and use. Designed to withstand water and dust with IP67, the XWatch-B19 is the perfect companion for your next adventure. The XWatch-B19 is a smart device on the inside and a stylish one on the outside.