The Quick Verdict
Get the SkyTrak ST MAX. The LPi is a capable photometric monitor, but it's indoor-only, wired-only, and still requires a subscription for any data — a $2,000 unit that locks all your numbers behind a $199–$499 annual paywall. The ST MAX costs more upfront ($2,995 vs $1,999.99), but it works outdoors, uses no special balls or stickers, and gives you a more complete club and ball data package. If you're building a dedicated indoor sim setup and genuinely don't care about ever taking it to the range, the LPi is worth a look. For most buyers, the ST MAX is the more useful device. Check price at The Indoor Golf Shop →
What They Have in Common
Both are camera-based (or camera-inclusive) monitors aimed at serious indoor sim setups. Neither requires special balls or stickers — though the LPi does need club face stickers for club data. Both connect via USB-C, both need an app to display data, and both are subscription-gated for simulation and course play. Neither has a built-in screen.
Where They Differ
Technology — three cameras vs radar plus cameras
The LPi uses triscopic photometrics: three high-speed cameras that capture ball and club at impact. It's a purpose-built indoor system, and that triscopic setup is genuinely good at what it's designed for — real spin data from actual ball deformation, not radar estimation. The tradeoff is that it literally cannot go outside. No sun, no wind, no range sessions. It's a sim room appliance.
The ST MAX takes a fusion approach: dual Doppler radar plus photometric cameras. Radar handles flight tracking outdoors; cameras help with spin and impact data indoors. From what I've seen, this kind of fusion tech tends to excel outdoors (radar is happiest tracking real ball flight over distance) while being reasonably accurate indoors — probably not quite at the ceiling that a dedicated triscopic system can reach, but I don't work at SkyTrak, so take that with appropriate salt.
What you're paying for — hardware and ongoing costs
The LPi sticker is $1,999.99. But you can't actually use it without a subscription: Silver is $199/year, Gold is $499/year. No free tier, no trial. At Silver tier over five years, you're at roughly $2,995 total. At Gold, you're at $4,495. Compared to the ST MAX's $2,995 upfront and then whatever SkyTrak's Essential/Core/Elite tiers cost, the LPi is not obviously cheaper — and the spec data doesn't include ST MAX subscription pricing, so you'll want to check SkyTrak's site before assuming it's lower.
The LPi is also wired-only — Ethernet and USB-C, no battery, no Wi-Fi. That means your sim room needs to be organized around a cable run. Not a dealbreaker in a permanent setup, but worth knowing before the unit ships.
Club data and stickers
The LPi tracks club speed and smash factor but needs club face stickers for that data. Stickers aren't legal in tournament play and require periodic replacement. The ST MAX tracks club path and face angle without any stickers — and since it's fusing radar and camera, it's reading real club data at impact.
Indoor vs indoor-and-outdoor
This is the starkest difference. The LPi doesn't work in sunlight. Full stop. If you ever want to take a launch monitor to a range lesson, a buddy's outdoor net, or just a real grass session for calibration purposes, the LPi can't come with you. The ST MAX can.
Sim software
The LPi connects to FSX Play. The ST MAX connects to E6 Connect and GSPro. If you're already invested in one of those ecosystems, that matters — GSPro in particular has a dedicated following and is frequently updated with new courses.
Who Should Buy Which
Bushnell LPi — you're the golfer who...
- Has a permanent, dedicated sim room with a clean cable run and no plans to take the unit anywhere else
- Is focused on ball flight and spin accuracy in a controlled environment, and values the triscopic camera setup for its measurement approach
- Is comparing this to other photometric systems at a similar price and finds the triscopic three-camera setup compelling
- Doesn't mind the annual subscription cost built into the total ownership math
- Won't need club path or face angle data (or is fine managing stickers for club speed)
SkyTrak ST MAX — you're the golfer who...
- Wants one device that works both in the sim room and at the range on weekend mornings
- Is already running GSPro or E6 Connect and wants native integration without extra workarounds
- Wants full club data (path, face angle) without stickers
- Prefers a larger upfront payment to a mandatory annual subscription commitment — though you'll need to verify ST MAX subscription tiers on SkyTrak's site
- Is building a serious setup and doesn't want to be limited to a single indoors-only use case
The Bottom Line
The LPi is a solid photometric system if your entire use case is a wired indoor sim room. But "indoor only, no free tier, stickers required for club data" is a lot of constraints for $2,000 before you add the mandatory subscription. The ST MAX costs more on day one, works outdoors, tracks more club metrics without stickers, and connects to two of the most popular sim platforms. Total cost of ownership is tighter than the hardware gap suggests — run the math on three years of subscriptions for both before deciding — but the ST MAX is the more capable and flexible device for most buyers.