Can Tech Fix Your Golf Swing?

New devices can measure the velocity and distance of your stroke and help determine which club to pull out next. But is all this new data actually helpful, or just another expensive golf trend? David Pierce aims to find out

IN THE LAST FEW years, everything from motion sensors to GPS trackers have become inexpensive and small enough to make their way into your golf bag. The upshot: It’s easier than ever to collect data about your game. What to do with that data can be a bit trickier.

I’ve been playing golf for years, both because I love the game and because I enjoy an excuse to drink beer outdoors for four hours. As for my skill level, I’m where most casual golfers are: I can name all the clubs in my bag and play without embarrassing myself...