Golf GPS or Golf Rangefinder, do I really need to use it?

Whether you're a professional golfer or just someone who's having fun on the course, both pieces of equipment can help you improve your game. You don't need to do traditional ways like relying solely on yardage markers or books to measure your distance.
Golf rangefinder display speed measurements, yardage and constant range readings. While golf GPS will show you the precise distance to the hazard, the shot distance will be shown with each swing and will help keep track of your score.
If you're looking to improve your game or find handy equipment on the court, consider taking these with you.