Golf GPS watch vs laser rangefinder

How each one works

A GPS watch uses satellite positioning to find your location and compares it with a stored map of the course. It can tell you the distance to the front, middle and back of the green, to bunkers and water, and to layup points, without you aiming anything. Accuracy depends on satellite signal and the quality of the course map.

A laser rangefinder fires a beam at a target and measures how long the reflection takes to return. It shows the straight line distance to whatever you aim at, and its flag priority mode helps it pick the flagstick from the background. It needs a clear line of sight and a steady hand, but it reads the flag itself rather than a mapped point on the green.

Listing facts side by side

Where a GPS watch wins

A watch also stays on your wrist, so carriers and trolley users alike always have it. Our GPS watch guide compares watches on course detail, battery and subscriptions.

• Blind shots over hills, trees or doglegs where you cannot see the target.
• Front and back of the green, which tells you how much room you have.
• Hazard carries and layups without lasering each one.
• Speed: a glance at the wrist with no aiming.
• Scorekeeping and stats in the companion app.

Where a laser wins

On a deep green, the difference between the middle and a back pin can be two clubs. That is where a laser earns its place. Our rangefinder guide compares lasers on lock speed, display and slope switch.

• The exact distance to the flag, which may be well away from the middle of the green.
• Any target you can see, including trees, bunker faces and the far edge of water.
• No reliance on course maps being up to date.
• No satellite signal needed.

Pace of play and practicality

Speed matters on a busy Saturday. A watch reading takes a second and needs no line of sight, so you can check the number while walking to the ball. A laser takes a few seconds more: stop, raise it, find the flag, wait for the lock. On most shots that difference is small, but over a round it adds up if you laser everything. A good habit is to laser only approach shots and par 3s, and use the course or a watch for the rest.

Weather plays a part too. Heavy rain, mist and low winter sun can make a laser slower to lock, while a watch keeps working as long as it has a satellite signal. On the other hand, a watch relies on the course map being accurate and up to date; if a green has been rebuilt or a new tee added, the laser still reads what is actually there. Our guide on using a rangefinder has tips for dull, damp British days.

Using both

Many keen golfers use a watch for tee shots, layups and a quick overview, then laser the flag on approach shots. The cost is higher and there is more to charge, but each covers the other's gaps. If you want a single device, hybrids exist: the Mileseey GenePro G1 in our rangefinder guide combines a laser with a GPS touchscreen, and the Voice Caddie SL3 adds GPS green mapping to a laser.

Note:Slope and plays-like features on either device must be off in competition under Rule 4.3. Makers describe golf lasers as eye-safe Class 1 products in normal use but warn against looking at the sun through the optics.

Frequently asked questions

Is a GPS watch as accurate as a laser? A laser measures the exact target you aim at; a watch depends on satellite signal and the course map. For the flag, a laser is more precise; for the green and hazards, a watch is quicker.

Are both legal in competitions? Yes, under Rule 4.3, unless a Local Rule bans distance devices. Slope and plays-like features must be off.

Which is better for a beginner? A watch is easier: no aiming and useful numbers on every shot. A laser becomes more valuable once you know your club distances well.