What They Have in Common
Both work indoors and outdoors. Both connect to E6 Connect and GSPro. Both track the core ball data you'd expect at this tier — ball speed, launch angle, spin, carry, total distance. Neither requires special balls, which saves you from the $70/dozen sticker shock of RPT or RCT setups.
Where They Differ
Technology
The R50 uses three photometric cameras. The ST MAX uses a fusion of dual Doppler radar and photometric cameras. These aren't equivalent approaches — they're different tools with different strengths.
Camera-based systems like the R50 tend to perform well indoors where lighting is controlled. You get high-speed impact video with the R50, which is genuinely useful for seeing what's happening at contact. Radar, on the other hand, tracks the ball in flight more directly, which can help with outdoor carry data on windy days when a camera might lose the ball.
The ST MAX's radar+camera fusion is SkyTrak's answer to the accuracy complaints that followed their older camera-only ST unit. From what I've seen, the hybrid approach should handle a wider range of conditions than pure camera setups, but I don't work at SkyTrak — and neither product has published third-party accuracy data I can point to here.
Club Stickers — and What You Lose Without Them
The R50 requires club face stickers to track club data: club head speed, angle of attack, smash factor. These aren't expensive, but they're a hassle. You have to apply them before every session, they wear out, and they're not legal in tournament play if you're the type who goes from the sim room to the first tee without thinking about it.
The ST MAX tracks club path and face angle without stickers. That's legitimately useful if you're testing multiple clubs, lending your setup to a buddy, or just hate fussing with adhesives.
Display and Setup
This is the clearest distinction. The R50 has a 10-inch color touchscreen built in, plus HDMI output if you want to mirror to a bigger screen. It's a self-contained simulator. You walk in, turn it on, start hitting balls. No phone, no tablet, no app pairing.
The ST MAX has no built-in display. You need a phone, tablet, or laptop running the SkyTrak app. At a dedicated sim setup, that's no problem — your PC is already there. But if you're setting this up at a range or a different location, you're pulling out your phone every time.
If your sim room occasionally loses internet, that also matters: the R50's standalone screen means your basic shot data is still visible. App-dependent devices vary on how gracefully they handle offline mode.
Subscription Costs and Total Cost of Ownership
The R50 runs $3,500 upfront. Garmin Golf is $99.99/year and unlocks Home Tee Hero with 43,000+ courses. Over three years: $3,800. Over five years: $4,000.
The ST MAX is $2,995. Course play requires an Essential, Core, or Elite membership — SkyTrak's pricing tiers. The exact cost of each tier isn't in the data I have, so I'd check their site before assuming it's cheaper than Garmin Golf. The hardware gap alone is $505.
Software and Course Access
Both support E6 Connect and GSPro, so if you're already paying for one of those platforms, either device plugs in. The R50 adds Home Tee Hero natively at the base subscription. The ST MAX's native course play lives inside SkyTrak's own platform, which is the one where subscription tier matters.
Who Should Buy Which
Garmin Approach R50
- You're building a dedicated sim room and want everything to just work without piecing together a device ecosystem.
- You don't want to manage a separate tablet or PC — the built-in touchscreen is the whole interface.
- You like having high-speed impact video to see what's happening at contact.
- You're fine applying club stickers for club tracking and the $99.99/year Garmin Golf subscription is reasonable to you given the hardware you're getting.
SkyTrak ST MAX
- You already have a solid PC or tablet setup and don't need another screen in the room.
- Club stickers annoy you or you're testing multiple clubs and don't want to resticker everything.
- The $505 price difference matters — maybe that goes toward a projector upgrade, flooring, or a few months of GSPro.
- You want the hybrid radar+camera approach and trust that dual Doppler will give you more reliable outdoor performance.
The Bottom Line
This comes down to whether you want a standalone box or a device that plugs into an existing setup. The R50 is the more complete out-of-the-box experience — screen included, impact video included, 43,000 courses one subscription away. The ST MAX is the better choice if you're already invested in a sim room and don't need another display, especially since it drops the sticker requirement and comes in $505 cheaper on hardware.
If you're starting from zero and want to minimize decision fatigue, the R50 makes that easier. If you're building around existing software and gear, the ST MAX earns its keep.
Get the Garmin Approach R50.
See Also