What They Have in Common
Both run on the same Garmin Golf ecosystem: 43,000 preloaded courses, Virtual Caddie, AutoShot tracking, CT10 sensor compatibility, green contours (membership required), wind data, PlaysLike distances, strokes gained, digital scorecard, and USB-C charging. Same 1-year warranty. Same $99.99/yr membership if you want contours.
Where They Differ
Form Factor — Handheld vs. Watch
This is the fundamental divide. The G82 is a 5-inch touchscreen handheld that weighs 308 grams — about the size and heft of an older smartphone. You carry it, clip it to a cart, or drop it in your bag pocket. The S70 is a 47mm watch that weighs 56 grams. It lives on your wrist and you basically forget it's there.
That difference matters more than it sounds. A handheld is easier to see — 5 inches of screen vs 1.4 inches — which makes reading hole maps and green views less of a squinting exercise. But you have to pick it up every time you want a number. A watch gives you a glance-and-go yardage without breaking stride, which is genuinely useful when you're walking a fast round or trying to stay in your pre-shot routine.
The G82's Built-In Launch Monitor
This is what makes the G82 genuinely unusual. It has a radar-based launch monitor built in — club head speed, ball speed, smash factor, estimated distance, and putting metrics (ball speed, tempo, stroke length). You can use it at the range, in the backyard, or as a warm-up tool before a round. The S70 has none of that.
If you're already thinking about buying a launch monitor and a GPS device separately, the G82 collapses both into one purchase. Radar launch monitors at this quality level don't come cheap on their own, so the $599.99 price starts to look different in that context. The tradeoff is that radar mode drains the battery to 8 hours — so if you spend two hours at the range before an 18-hole round, you're cutting it close.
Virtual Caddie — Same Brand, Different Depth
Both have Virtual Caddie, but the S70's implementation factors in wind, elevation, barometric pressure, temperature, and historical swing dispersion. The G82's Virtual Caddie works with wind data via the Garmin Golf app connection and PlaysLike adjustments, but the S70's built-in barometer means it's doing the atmospheric calculation on the watch, not dependent on a phone sync.
From what I've seen, the S70's caddie recommendations are noticeably more nuanced on days where conditions are actually variable — elevation changes, thermal wind swings. It's not night and day, but the barometer is doing real work there.
Smartwatch Features
The S70 is a full smartwatch. Heart rate monitoring, sleep tracking, fitness profiles, Garmin Pay for contactless payments, 32GB of music storage, smart notifications from your phone. The G82 has none of that — no heart rate, no notifications, no music. It's a golf device that also happens to measure your swing. The S70 is a lifestyle device that also happens to be an exceptional golf GPS.
If you wear a watch every day and want one device to handle both, the S70 makes sense in a way the G82 never will. If you only think about the thing during a round, that probably doesn't move the needle.
Display & Battery
The G82's 5-inch transflective color screen is readable in direct sunlight — transflective displays are designed for outdoor visibility. The S70 has an AMOLED display, which produces vivid colors and deep blacks, and is typically bright enough for outdoor use in most conditions. AMOLED screens can wash out in intense direct sunlight compared to transflective and MIP displays, though the S70 is notably better than first-generation AMOLED watches in this regard.
Battery-wise: G82 gets 25 hours in GPS mode (8 in radar mode). S70 gets 20 hours in GPS mode and 16 days in smartwatch mode. Both charge via USB-C.
Who Should Buy Which
Get the Garmin Approach G82 if:
- You want a built-in radar launch monitor and don't want to buy a separate device for range sessions
- You prioritize screen size over wrist convenience — a 5-inch screen shows you more
- You primarily use GPS on a cart rather than walking and checking your wrist
- You work on your putting mechanics and want the putting metrics (ball speed, tempo, stroke length) in a portable device
- You don't care about smartwatch features — heart rate, music, payments mean nothing to you on the course
Get the Garmin Approach S70 (47mm) if:
- You want wrist-worn GPS so yardages are always one glance away
- You want a device you'll wear all day — fitness tracking, sleep monitoring, daily notifications, contactless payments
- You'd rather have Virtual Caddie with a built-in barometer doing real atmospheric calculations
- You play fast rounds and don't want to handle a separate device mid-round
- The AMOLED display and ceramic bezel matter to you from a wear-it-daily aesthetic standpoint
The Bottom Line
The G82 and S70 aren't really head-to-head competitors — one is a handheld with a launch monitor, the other is a flagship GPS smartwatch. The G82 wins if the launch monitor functionality changes your practice routine and you'd otherwise be buying two devices. The S70 wins if you want the best Garmin has for wrist-worn on-course GPS, and you'll actually use the smartwatch features outside of golf.
Note that both require the $99.99/yr Garmin Golf membership to unlock green contours. Over three years, that's $300 on top of the device price — $900 total for the G82, $1,000 total for the S70 with full features. Factor that in before you decide.
Get the Garmin Approach S70 (47mm).
See Also