Abstract: A device comprises a rangefinder, memory, display, and processor. The rangefinder can measure a distance between a user and a target on a course. The memory stores data concerning a plurality of clubs including a hitting distance for each of the golf clubs. The processor, which is connected to the rangefinder, memory, and display, is configured to select, based on the measured distance, a recommended golf club and to determine a recommended swing speed for a golfer to hit a golf ball with the recommended golf club. The processor is further configured to cause the display to indicate the recommended golf club and swing speed. The device may alternatively or additionally comprise an inclinometer and calculate an adjusted distance based on tilt and the distance, and select the recommended golf club based on the adjusted distance.