GolfLogix GPS-8 Both Mac and PC compatible and manufactured by leading GPS firm Garmin, this model is easy to use and can hold 20 courses from among 20,000 courses worldwide for $30 per year. The waterproof unit displays distances in large, clear numbers and can track distances of shots. $300, golflogix.com Sonocaddie V300 The waterproof V300 displays the entire hole, helpful at a course you’re playing for the first time. Soon, you’ll be able to plot your shots on a Google Earth aerial view of the course. Instead of annual fees to access 12,000 courses, you pay a one-time charge of $50. $400, sonocaddie.com SkyCaddie SG5 The company’s top-of-the-line model features color graphics and multiple target-view screens. It can calculate the distances of all your shots. A unique feature is IntelliGreen, which provides the green depth from any angle. Users have access to 18,000 courses worldwide for $60 per year. $460, skygolf.com uPro What distinguishes this sleek device is video flyover (just like on TV) of each hole. Another useful feature is the ability to measure distance to any point--great for lay-up yardages. Only 2000-plus courses are currently available in this mode starting at $10 per course. No software required. $400, uprogps.com  Next gift »