Featuring call and Bluetooth message alert notifications, the SMART FIT Mini Fitness and Health Monitor Watch works with all iPhones, Samsung Android phones and many others. The SMART FIT is a smaller, lighter version of the health monitor watch that monitors your activity, sleep and much more. It also has an alert function that will notify you by vibrating if you receive an incoming call or text message. Featuring an OLED screen, the watch face is bright and clear in any light. The band is made of silicone and includes a dual metal clasps that adjust the strap size and lock to keep it in place.