I have a bushnell. my phone battery goes dead easy enough as it is.
also, when you ping the flag with a rangefinder it tells you EXACTLY how far you are out. none of this "to the center of the green" bullshit. depending on the size of the green you could be a whole club off (or more!) if your app is only telling you what the distance is to the center of the green. just saying. not to mention the lowly courses you might be on that aren't even a part of the app you have on your phone.
judging distance.....I'm terrible at it. best purchase I've ever made for improving my game.....a stupid range finder.
A naked American man stole my balloons.