What They Have in Common
Both are Garmin golf watches running the same Garmin Golf app ecosystem, with preloaded access to 42,000–43,000 courses. Both offer green view with hazard data and scoring. Neither requires a subscription for basic functionality. Same 1-year warranty. Same chemically strengthened glass. Same $0 in ongoing subscription costs if you're content with the free tier.
Where They Differ
Display and Interface
This is where the gap is widest. The J1 runs a 1.2-inch AMOLED touchscreen at 390×390 resolution. Color hole maps, sharp yardages, readable in sunlight with always-on optional. You can tap through menus the same way you'd use your phone.
The S12 has a 0.9-inch monochrome MIP display at 175×175 and buttons only. No touch. MIP (Memory-In-Pixel) does read well in direct sunlight — legitimately well, better than most LCD panels — but the hole maps are basic and colorless. At 2025 vs 2021, you're looking at roughly a generation of display technology separating these two.
If you've never used a color GPS watch on the course, you might not miss it. But once you have, going back to a small monochrome screen feels like borrowing someone's old phone.
Shot Tracking
The J1 has Garmin AutoShot built in — the watch detects your swing automatically and marks shots without any input from you. You don't need sensors, you don't need to tap anything. It works on-course when you have a clear sky (won't catch a shot hit under a cart canopy, and occasionally misfires on hard practice swings, but it's generally reliable).
The S12 does manual scoring only on-device. You can add Garmin CT10 club-tracking sensors, sold separately, for automated club-level tracking — but that's an add-on cost, and you're still clicking through menus manually. AutoShot being included and frictionless on the J1 is a genuine advantage if you want round data without the friction.
Battery Life
The S12 wins this one, and it's not close. Thirty hours of GPS versus fifteen means the S12 will cover a 36-hole day comfortably. The J1 will make it through one round with room to spare (a typical round runs 4–5 hours of GPS), but back-to-back rounds on a golf trip might stress you. The S12 also clocks 70 days in watch mode versus 10 on the J1 — partly the AMOLED penalty, partly the simpler processor.
For most recreational golfers playing one round at a time and charging nightly, 15 hours is plenty. But it's a real consideration for golf travel.
Weight and Form Factor
The J1 is 29 grams. The S12 is 34 grams. Neither is heavy — compare to a Garmin Fenix 8 at 82g and both feel like nothing. The J1 was specifically designed for junior golfers where swing interference was a concern. If you're shopping for a junior, the J1 is almost certainly the pick, full stop. If you're an adult, both weights are negligible.
Durability and Water Resistance
The S12 has a 5 ATM water resistance rating. The J1 lists no specific water rating in the specs, which is worth noting — the spec sheet doesn't confirm swim-proof or even heavy rain proof. From what I've seen, Garmin typically builds weather resistance into their golf watches, but I'd want that confirmed before taking the J1 in a downpour.
Who Should Buy Which
Get the Garmin Approach J1 if:
- You want a color AMOLED display and will use the full-color hole maps
- Automatic shot tracking without sensors or manual input appeals to you
- You're buying for a junior golfer (purpose-built, 29g, non-restrictive)
- You play one round at a time and charge overnight like a normal person
- The $100 premium over the S12 doesn't sting too much
Get the Garmin Approach S12 if:
- You're doing multi-round golf trips where charging mid-trip is inconvenient
- Battery life anxiety is genuinely part of how you think about tech
- $199.99 is a hard ceiling and the J1's $300 is out of range
- You don't care about color, touch, or automatic shot tracking — you want distances and scoring, nothing more
- You're buying a loaner watch or a watch for someone who'll be rough on it
The Bottom Line
The S12 is a reliable, no-frills golf GPS that was excellent for its time. It still does the job. But "still does the job" isn't the same as "the right buy in 2025." The J1 is a better product — brighter display, automatic shot tracking, lighter, and designed for how people actually interact with watches now. The battery gap is real but irrelevant for most golfers who charge their devices regularly.
If you're staring at both on a retailer page: the $100 price difference exists, it's real, and only you know whether it matters. But the J1 is the better watch.
Get the Garmin Approach J1.