The short answer
Radar units behind the ball need the deepest rooms; camera units beside the ball and overhead units read the ball at impact and fit rooms from about 13.5 ft deep. Overhead units add their own ceiling requirement.
All 43 launch monitors
| Launch monitor | Placement | Seller's stated space | FOREference depth | Stated ceiling |
|---|---|---|---|---|
| Rapsodo Mobile Launch Monitor (MLM) | Behind the ball | — | 18–20 ft | — |
| Shot Scope LM1 | Behind the ball | — | 14.5–16.5 ft | — |
| PRGR Portable Launch Monitor | Behind the ball | — | 15–17 ft | — |
| Voice Caddie Swing Caddie SC200 Plus | Behind the ball | — | 14.5–16.5 ft | — |
| Ernest Sports ESB1 | Behind the ball | — | 15–17 ft | — |
| Voice Caddie Swing Caddie SC300i | Behind the ball | — | 15–17 ft | — |
| FlightScope Mevo (original) | Behind the ball | — | 17–19 ft | — |
| Blue Tees Golf Rainmaker | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Garmin Approach R10 | Behind the ball | 14 ft deep | 17–19 ft | — |
| Voice Caddie Swing Caddie SC4 PRO | Behind the ball | — | 15–17 ft | — |
| Rapsodo MLM2PRO | Behind the ball | 15.5 ft deep | 16.5–18.5 ft | — |
| Square Golf (Home Edition) | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| OptiShot Orbit | Behind the ball | — | 17–19 ft | — |
| FlightScope Mevo+ | Behind the ball | 16 ft deep | 18–20 ft | — |
| FlightScope Mevo Gen2 | Behind the ball | 16 ft deep | 18–20 ft | — |
| Square Golf Omni | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| SkyTrak ST MAX | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Ernest Sports ES Tour Plus | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| SkyTrak+ (ST+) | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Bushnell Golf Launch Pro i (LPi) | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Uneekor EYE MINI LITE | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Red Stakes RSG One | Behind the ball | — | 16–18 ft | — |
| Uneekor EYE MINI | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| TruGolf Launch Box | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Bushnell Golf Launch Pro | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Full Swing KIT | Behind the ball | 16 ft deep | 17–19 ft | — |
| Garmin Approach R50 | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| VTrack | Ceiling, in front of the ball | 8 ft 10 in minimum, 10 ft ideal | 13.5–15.5 ft | 8 ft 10 in minimum, 10 ft ideal |
| Ernest Sports ES Eagle Sim | Ceiling, in front of the ball | Enough space to swing | 13.5–15.5 ft | 9 ft |
| Golfin IDRA II | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Uneekor EYE XR | Ceiling, behind the ball | 9–10 ft at the mounting position | 13.5–15.5 ft | 9–10 ft at the mounting position |
| Uneekor EYE XO | Ceiling, in front of the ball | Enough space to swing | 13.5–15.5 ft | — |
| ProTee VX | Ceiling, in front of the ball | 16 ft deep | 16–16 ft | 9–10 ft |
| Foresight Sports GC3 | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| TruGolf APOGEE | Ceiling, in front of the ball | Enough space to swing | 13.5–15.5 ft | 9 ft |
| Uneekor EYE XO2 | Ceiling, in front of the ball | Enough space to swing | 13.5–15.5 ft | — |
| FlightScope X3C | Behind the ball | 16 ft deep | 17–19 ft | — |
| Trackman iO | Ceiling, in front of the ball | 9.5–10 ft at the mounting position | 13.5–15.5 ft | 9.5–10 ft at the mounting position |
| Foresight Sports GCQuad | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Foresight Sports Falcon | Ceiling, in front of the ball | 9 ft 6 in H × 12 ft W × 14 ft D | 14–15.5 ft | 9.5 ft |
| Trackman iO DUO | Ceiling, in front of the ball | Enough space to swing | 13.5–15.5 ft | 9 ft |
| Foresight Sports QuadMAX | Beside the ball | Enough space to swing | 13.5–15.5 ft | — |
| Trackman 4 | Behind the ball | 15 ft W × 10 ft H × 18 ft D | 18–19 ft | 10 ft |
FOREference calculationFOREference depth: camera/overhead = 1 ft screen gap + 8–10 ft to the screen + 4.5 ft behind the ball; radar = screen gap + ball flight + distance behind the ball + 1 ft. Method explained.
Figures marked as FOREference calculations show their working; product figures come from the sources on each product page. How we work