Square Golf Home vs SC4 PRO

The Square Golf Home is $699.99 at every retailer we track. The SC4 PRO is $549.99 at Indoor Golf Outlet and $599.99 at PlayBetter, Rain or Shine and Voice Caddie's own store, which now sells only the PRO. They measure in opposite ways. The SC4 PRO is a Doppler radar that sits behind the ball and calculates spin rather than measuring it; Voice Caddie's setup guidance puts the unit 5 ft behind the ball and the ball 10 ft from the screen, about 18 ft of room on our room planner's figures, with the 7 ft behind the tee that Shop Indoor Golf and Carl's Place advise. The Square sits beside the ball and reads it with a camera at impact, and Square publishes no ball-to-screen distance, so the ball can come as close to the screen as your swing allows (about 14 ft of room at the least), but it is built for indoor use only.

On data the Square does more. It measures backspin and sidespin — Square ships three marking balls and club markers in the box and says the marking ball is what gives it precise spin readings — plus club path and attack angle with the club marker, and it supports putting; its face angle and dynamic loft are Square's estimates. The SC4 PRO shows carry, total, ball and swing speed, smash factor, launch, apex and a calculated spin rate on its own display, reads each shot aloud, and runs about 10 hours on its battery, which is why it suits the range.

Course play is where they split. The Square's own app plays courses on credits, one per player per hole, with 1,000 included (about 55 rounds) and top-ups from $2.99 for 100; it runs on Windows, iOS and Android. GSPro lists the Square officially with no Square fee, and E6 Connect and Awesome Golf connect too. The SC4 PRO's only course software is E6 Connect: Voice Caddie includes five courses and a driving range on iOS or a PC, and the rest of the library is an E6 subscription, $300 a year for Basic or $600 for Expanded. GSPro doesn't list it.

At a round a week for one player, five years on the Square's credits comes to about $780. The SC4 PRO is $549.99 all-in if its five E6 courses are enough, or about $3,550 with E6's Expanded library. On E6 Connect the Square also has a buy-once option: TruGolf's E6 Connect Home licence, $1,000 for 27 courses, where the SC4 PRO's buy-once licence is $2,500. GSPro on the Square adds $250 a year and a Windows PC above GSPro's RTX 3060 minimum, such as our $1,199.99 RTX 5060 tower, which neither price includes. Buy the SC4 PRO if most of your swings happen at the range and a few E6 rounds at home are a bonus; for a sim that lives indoors, the Square is worth the difference.