These two cost the same, wear the same badge, and are not really the same kind of device. The G82 is a 5-inch GPS handheld with Doppler radar added, aimed at the course, with 43,000-plus maps and unique putting metrics. The R10 is a dedicated launch monitor built for the range and the simulator. If you read only the price tags you would think they compete. They mostly do not.

What each one actually measures

This is the whole decision. The G82 is a distance-only device: it does not measure spin, launch angle, or true carry the way the R10 does, and its radar is estimate-grade. The R10 is a full-data launch monitor, roughly 12 metrics with simulator play and carry numbers within a few percent of tour-grade units. That gap shows in the scores, accuracy 8.0 for the R10 against 7.0 for the G82, and it is the reason to pick one over the other.

On the course versus in the bay

The G82's edge is everything around the golf, not the ball data: a huge touchscreen, 43,000-plus courses, GPS, and putting metrics the R10 does not attempt. It is a caddie you can also hit a few shots with. The R10 does not map courses; it is happiest behind a ball on the range or driving a simulator. One honest caution on the G82: it costs the same as true launch monitors while measuring less, and long-term review data is still thin.

Who each one is for

• Garmin Approach G82: on-course players who want a premium GPS handheld with maps and putting metrics, and who treat range ball data as a bonus rather than the point.
• Garmin Approach R10: practice and simulator players who want real measured ball data, more metrics, and sim play, and who do not need on-course GPS.

The verdict

If you want a launch monitor, buy the R10: it measures more, scores higher, and plays simulators, which the G82 does not. If what you actually want is a top-tier course GPS that can also flash a few range numbers, the G82 is the better handheld and the R10 was never built for that job. Match the tool to where you play.