Here is a Golf GPS that you can clip onto your belt or bag to start getting helpful data while playing golf. The Callaway eCLIPse is preloaded with 30,000+ worldwide courses and displays distances to the front/center/back of the green and hazards. It also features auto course recognition, auto hole advance, and shot distance measurement.
The battery device lasts you up to 12 hours in GPS mode. The device is lightweight and elegant. Sets you back under $200.