Golf rangefinder vs GPS watch: which is right for you?

How a laser rangefinder works

You aim at the flag or a target and the device measures the distance. It is precise, but you need a clear line of sight, and it won't show hazards you can't aim at.

How a GPS watch works

A GPS watch uses preloaded course maps to show the distance to the front, middle and back of the green and to hazards. It's hands-free and shows distances you can't see, but accuracy depends on the course map and the signal. Some models need a subscription or an update for courses.

Which suits you

• You want the exact distance to a flag: a laser rangefinder.
• You want to see layout and hazard distances quickly with no aiming: a GPS watch.
• You play many different courses: check coverage before choosing a watch.
• You play tournaments: check the competition's rules (see below).

Slope and tournament rules

Some rangefinders offer a slope feature that adjusts the distance for uphill and downhill shots. Slope is usually not allowed in competitions unless the device can turn it off or the rules permit it. If you play competitively, check your event's rules.

Battery and extras

Check battery life, how the device attaches (a magnet to a cart, a strap), and whether it's waterproof. Features you won't use are not worth paying for.