The Quick Verdict
Honestly? These two together is the setup. The S50 on your wrist for course strategy — hole maps, hazard yardages, shot tracking — and the Z82 in your pocket for when you need to know exactly how far that tucked Sunday pin is. At $400 + $600, that's a $1,000 combination, which isn't nothing. But if you're buying just one? The S50 gives you more information across a full round. The Z82 gives you more accuracy on the shots that matter most. This genuinely depends on what's been costing you strokes.
What They Actually Do
The S50 is a GPS golf watch — it shows you course maps, hazard distances, and hole overviews on your wrist without pointing at anything. The Z82 is a laser rangefinder — you look through it, aim at a flag or target, and it tells you exactly how far away that specific thing is. Both are legal for tournament play (with slope disabled), and both are Garmin products that connect to the Garmin Golf app.
The Real Tradeoffs
Precision vs. Convenience
The Z82 is accurate to within 10 inches at the pin. Ten inches. The S50 gives you front, center, and back of green — useful numbers, but not the same thing as knowing your ball is 162 yards from a front-left pin tucked behind a bunker. For approach shots where pin placement changes your club selection, the Z82 wins cleanly.
But here's the flip side: most shots you hit in a round aren't approach shots to a specific pin. Tee shots, layup decisions, hazard carries — for all of that, you just need a reliable yardage to a general target. The S50 gives you those numbers instantly, without pulling anything out of your pocket.
Speed of Use
On a busy Saturday with pace-of-play pressure, the watch wins. Glance at wrist, pick club, hit shot. The Z82 means finding the device, raising it to your eye, locating the flag through a 6x lens, pressing the button, reading the number, putting it away. That's 15-20 seconds per shot when you're in a rhythm.
The rangefinder is faster exactly once: when you need a precise number to a target you can actually aim at. For everything else, the watch is just quicker.
What You Can See Before You Hit
This is where the S50 has a category-level advantage the Z82 can never match. You're on a tee box you've never played — 415-yard dogleg right, bunkers at 240 on the left edge of the fairway, water short-right of the green. The S50 shows you all of that. You can plan the shot before you even pull a club.
The Z82 shows you nothing about course layout. It's a measurement tool. If you want to know how far to carry a bunker you're trying to avoid, you'd have to aim at the near edge of that bunker specifically. It can't show you the hole the way a GPS can.
Real-world flip side: you're 175 yards out, middle of the fairway, pin is cut front-left. Your S50 says center green is 178. The Z82 gives you 166 to the actual flag. That's potentially a two-club difference. That's where the rangefinder earns its money.
The Garmin Ecosystem
These two are designed to live together. Both sync with the Garmin Golf app, and the Z82 can relay its laser measurement directly to the S50 on your wrist — so you get the pin-precise number from the rangefinder displayed on the watch. That's a genuinely useful feature if you own both. You range the pin with the Z82, your wrist confirms the number, and you never have to squint at the rangefinder display again.
Both also pull course data from Garmin Golf's library — the S50 from 43,000 courses, the Z82 from 41,000.
Course Info Depth
The S50 does a lot more than just distances. Full-color hole maps, hazard overlays, PlaysLike distance (adjusts for elevation), automatic shot tracking via AutoShot, scoring, strokes gained. With a Garmin Golf membership ($99/yr), you also get green contour maps.
The Z82 gives you one number — a very accurate number — and a 2D CourseView overlay in the viewfinder that shows GPS hazard info while you're looking through the scope. That's a clever feature, but it's not the same as what the watch provides.
Battery & Charging
Similar situation for both. The S50 runs about 15 hours in GPS mode — enough for 1-2 rounds before you need to charge it. The Z82 is rechargeable lithium-ion, also rated for 15 hours of GPS use. Neither is a battery anxiety situation for normal use, but both need charging. Unlike a rangefinder running on CR2 batteries that you replace every few months, these both want a USB-C port after a few rounds.
Tournament Legality
Both have slope mode and both have a way to turn it off. The S50 has an explicit tournament mode. The Z82 has tournament-mode functionality (slope off). You're legal with either — just make sure slope is disabled if your event requires it.
Who Should Get Which
Get the S50 if you play a variety of courses and want the full picture before every shot, you like having shot tracking and scoring in one device, you want something you can actually wear all day (29 grams, AMOLED display, contactless payments), or you're not ready to commit to carrying a separate device on the course.
Get the Z82 if you already have a GPS device or know your courses well, you want the most accurate pin distance available, or you're the type of golfer who obsesses over exact yardages on approach shots. It's also worth noting: at $600, it's the pricier option, and it does exactly one thing. Make sure that one thing is what you need.
Get both if you're a serious golfer who wants full course management AND shot-by-shot precision. The relay feature — where the Z82 pushes its laser reading to the S50 on your wrist — is the kind of thing that justifies owning both. This is what a lot of low-handicap players actually do. One device handles strategy, the other handles execution.
The Bottom Line
The S50 is the smarter single purchase for most golfers — more information, more versatile, wears all day. But the Z82 is the better tool for the specific moment it's built for. If you've ever stood over an approach shot unsure whether you're 162 or 172 yards out, you already know which gap needs filling.
Get both. The S50 on your wrist, the Z82 in your pocket.