Distance device over driver.
Have had two laser devices, 3 gps devices. Shake too much to get a reliable yardage with the lasers. Phone gPS sucks life out of my battery and on some courses it gets confused. Watch gps good, but was never really comfortable with wearing it. Last was that little square neo. Turns out I only really need front, middle and back distances. On rare occasion intermediate distances have helped.
Since my playing philosophy is to go for the middle of green with a few exceptions, it is more than accurate for my surgical approach shots. 🤓
Many of the hill couses make yardages as only a starting point, then yout need to figure how much or l essential based on elevation.