What They Have in Common
Both sit in the same budget tier, both track spin rate and carry distance, and both connect to GSPro. Two-year warranties on each. Neither requires club face stickers. That's about where the overlap ends — the technology, use case, and long-term cost are genuinely different.
Where They Differ
Technology: Radar vs Camera
The Rainmaker uses Doppler radar. The Square Golf Original uses a high-speed camera with machine vision, positioned beside the ball. This isn't a nitpick — it's the most important difference between these two products.
Camera-based systems like the Square Golf capture actual ball markings at impact, which means spin data is measured from a real image, not inferred from flight path. That makes a meaningful difference indoors, where radar units can't track the full ball flight needed to calculate spin accurately. The Rainmaker's spec sheet lists spin rate as a tracked metric, but radar-only spin data indoors is less reliable — it's estimating rather than measuring. I'd guess the Square Golf's spin numbers are more trustworthy in a sim room, though I don't have independent accuracy data on either unit to confirm.
Outdoors, the equation flips. The Square Golf is indoor-only. Full stop. If you want to use a launch monitor at the range on a Saturday morning, it's not an option.
What You're Paying (And Paying Ongoing)
Rainmaker: $599 up front, plus $79/year after year one for sim integration and advanced metrics. At three years, you've spent $757. At five years, $915.
Square Golf Original: $699 up front, nothing after. At three years, you've spent $699. At five years, still $699.
The Square Golf costs $100 more at purchase and saves you money every year after that. If you're using this indoors for simulation, the math is straightforward.
One catch: the Square Golf requires dotted balls for full spin tracking. These run around $70 per dozen, so if you're burning through practice balls regularly, that's a real annual cost to factor in. The Rainmaker works with any ball — no special equipment required.
Indoor Spin and Sim Software
The Square Golf comes with 10 courses included through GSPro. The Rainmaker offers sim integration through E6 Connect and GSPro, but that access requires the $79/year GAME + LAUNCH membership after the free first year. So the first year is roughly equivalent; year two is where they diverge.
Display and Standalone Capability
The Rainmaker has a 4.3" built-in color display. That's genuinely useful — if you're at a range without Wi-Fi, or you just don't want to prop up a phone, you can read your data right off the unit. The Square Golf has no built-in display. Everything goes to your phone, tablet, or PC via Bluetooth.
At an outdoor range, the Rainmaker's screen means you're not squinting at a phone in the sun. The Square Golf will never face that situation — it doesn't work outside.
IPX7 vs Indoor-Only
The Rainmaker is IPX7 waterproof. That matters if you're taking it to the range in unpredictable weather. The Square Golf is built for a controlled indoor environment, so weather protection isn't part of the design conversation.
Who Should Buy Which
Blue Tees Rainmaker
- You play outdoors and want data at the range — carry distances, club speeds, real on-course practice feedback.
- You want a launch monitor that doubles as an indoor sim unit without being locked to one location.
- You prefer a device that works standalone, no phone required, in any conditions.
- You're okay with a $79/year subscription after year one and you've done the math.
Square Golf Original
- You're building a dedicated sim setup indoors and spin accuracy matters to you.
- You don't want a subscription, ever — you want to pay once and be done.
- You're already buying GSPro or want to use it without paying extra to connect.
- You're willing to stock dotted balls and absorb that as your main ongoing cost instead of a software fee.
The Bottom Line
If you're sim-focused and staying indoors, the Square Golf Original is the better call. Camera-based spin data is more reliable in that environment, the no-subscription model saves real money over time, and 10 courses are included out of the box. The dotted ball requirement adds a small annual cost, but it's lower than the Rainmaker's subscription after year one. If you ever want to take a launch monitor to the range or use it outside, the Rainmaker is the only option here that actually supports that.
Get the Square Golf Original.