Meet the GoGolf GPS: a clip-on Bluetooth rangefinder that pairs to your mobile device and gives you the distance to the center of the green or your last shot with the touch of a button. It has a lightweight, discreet design. You can clip it onto your hat or glasses and pair it to your iOS or Android device.
The companion app shows you an aerial view of each course. You can also use this as a Bluetooth speaker for other apps. The battery should last 5 x 18 hole rounds on a full charge.