If you’re serious about your golf, a rangefinder can be just the thing for improving your score. The Pro XE ($550) is Bushnell’s flagship device. Not only does it give precise distance, but its slope technology (which can be switched off for tournaments) factors in temperature and altitude to the ball flight. It can lock onto a flag at over 500 yards, has a 7x magnification to help you pinpoint its position and features a magnetic mount allowing you to stick it to your cart for safekeeping. No word on whether it will help your slice.