Radar vs camera: the 6 ft that decides your launch monitor

Why nobody tells you this first

Search for a launch monitor and you will get comparison after comparison of ball speed accuracy, spin measurement, software libraries and price. All useful. All downstream of a question nobody leads with: does this thing physically fit in the room you own?

There is a practical reason. Room-depth guidance is usually split across manufacturer manuals, retailer measuring guides and product pages, while the comparisons people read first are organized by accuracy, software and price. The space information exists — it is genuinely good, and it is cited throughout this article — but it tends to live on a separate "measuring your space" page you find after you have already decided what you want.

This site does not sell hardware, so it can put the room first.

The three families

Where each unit actually sits

These are published positions from manufacturers and from the two retailers who document them most carefully. Distances are from the ball unless stated.

Unit	Family	Position
SkyTrak / SkyTrak+ / ST MAX	Camera	Directly beside the ball. SkyTrak's own guidance notes that competing units require up to 8 ft behind the ball while theirs sits alongside it.
Foresight GC3 / GCQuad	Camera	Beside the ball. Reads from the side, so no extra space in front of the ball either.
Uneekor EYE MINI	Camera	Beside the ball, with the ball between you and the unit.
Trackman iO	Ceiling	8′10″–10′6″ from the hitting surface (three calibration bands), 3′3″–3′5″ in front of the tee.
Trackman iO DUO	Ceiling	9′4″–10′6″ from the hitting surface (MID and HIGH bands only), 3′3″–3′5″ in front of the tee.
Uneekor EYE XO / XO2	Ceiling	9–10 ft high, 3.5 ft in front of the tee.
Uneekor EYE XR	Ceiling	9–10 ft high, 3.5 ft behind the tee.
Foresight Falcon	Ceiling	9.5–10.5 ft high, 4 ft in front of the tee.
Foresight GCHawk	Ceiling	9.5–10.5 ft high, 4 ft in front of the tee.
Trackman 4	Radar	Behind: 6 ft minimum, 7 ft optimal, 9′6″ maximum.
FlightScope Mevo+	Radar	8 ft behind.
Full Swing KIT	Radar	8–10 ft behind.
Garmin Approach R10	Radar	6–8 ft behind, per Garmin's own manual.
Rapsodo MLM2PRO	Hybrid	6.5–8.5 ft directly behind the ball.
Garmin R50	Hybrid	1.5 ft to the side of the tee, with 9 ft of swing space all round.

Sources: SkyTrak, Plan Your Space; Carl's Place, Measuring Your Space; Trackman 4 room dimensions; Trackman iO mounting specifications; PlayBetter, Mevo+; PlayBetter, Full Swing KIT; Garmin R10 owner's manual. Retrieved August 2026.

Turning that into a room

Room depth is built from three pieces that every guide agrees on: 1 ft behind the screen, 10–12 ft of standoff between you and the screen, and whatever the unit needs behind the ball. Add them up and the split is stark.

Family	The sum	Minimum depth	Recommended
Camera, beside the ball	1 ft + 10 ft + ~4 ft of swing room	15 ft	18–20 ft
Camera, overhead	Same, but height-gated	15 ft & 9′4″ ceiling	18–20 ft
Radar	1 ft + 10 ft + 6–10 ft behind	16–17 ft	18–21 ft

Depth composition per Carl's Place and Shop Indoor Golf. Radar minima from the manufacturer figures in the table above; Mevo+ recommended depth of 21 ft per PlayBetter.

Four things the depth number doesn't cover

1. Left-handers are a camera problem, not a width problem

Everyone knows right- and left-handed use needs 14 ft of width. Less well known: the side-mounted camera units — GC3, GCQuad, EYE MINI — read from beside the ball, which means the unit has to be physically carried to the other side every time a left-hander takes over. Radar units, sitting centrally behind the ball, don't care. Nor do ceiling units. If your room will be shared between a right- and a left-hander, that is a real daily friction that no spec sheet lists.

PlayBetter, GCQuad.

2. Radar pins you to a small patch of floor

Garmin's manual for the R10 specifies not just a distance but an area: a 2 × 2 ft hitting zone, starting 6 ft from the unit, within which the tee can move. Step outside it and the numbers degrade. If you were imagining freely repositioning your mat, that assumption belongs to the camera family.

Garmin R10 owner's manual.

3. Ceiling units trade depth for height — and the window is narrow

Overhead cameras are the elegant answer: nothing on the floor, no side to swap, no space behind you. But the mounting window is narrow. Trackman publishes three calibration bands for the iO, measured from the hitting surface to the ceiling: LOW 270–290 cm (8′10″–9′6″), MID 285–305 cm (9′4″–10′) and HIGH 300–320 cm (9′10″–10′6″). The standard iO can use all three; the iO DUO uses MID and HIGH only, so it starts at 9′4″. "From the hitting surface" matters, because a 2.5 in mat comes off your ceiling first: a flat 9 ft ceiling with a mat leaves about 8′9″, just under the LOW band. Check the current regional installation guide before you mount anything.

Trackman iO height and mounting specifications.

4. Lighting is a camera constraint, and it is contested

Photometric units read light, so light matters to them in a way it doesn't to radar. How much is genuinely disputed. Owners have reported LED downlights directly above a SkyTrak causing repeated read failures, fixed by moving the light behind the unit; another reported Foresight advising halogen and dimmers only. Others insist camera units handle the full range. SkyTrak's own FAQ says nothing about indoor lighting at all — only that direct sunlight on the lens can affect accuracy. If you are going camera and wiring a room from scratch, ask your retailer about your specific fixtures before the electrician arrives.

Owner thread, mixed views; SkyTrak FAQ. Individual accounts, not a study.

So which one

If your room is…	Buy	Why
Under 15 ft deep	Nothing yet	Below the published minimum for every family. Measure the next room along.
15–18 ft deep	Camera, beside the ball	Radar cannot get far enough behind you without eating your standoff.
18 ft+ deep, ceiling under about 9′1″	Either — choose on budget	Geometry has stopped constraining you. Ceiling units are out on height: the iO LOW band needs about 9′1″ once a 2.5 in mat is under you.
18 ft+ deep, ceiling about 9′1″–10′8″	All three open	Overhead becomes possible if you want the clear floor. The iO DUO needs about 9′7″. It is the expensive route.
Shared with a left-hander	Radar or ceiling	Side-mounted cameras have to be moved for every swap.
A cold garage	Ask in writing first	Only Garmin publishes an environmental range (−10°C to 55°C operating, 0°C to 45°C charging). No one else does.

Depth is also a budget question, not only a shopping one. Gaining the depth or the height a radar unit needs means building work, and a fully finished garage costs $3,000–$17,000 in the US while a finished basement costs $15,000–$75,000 (both checked 23 August 2026) — often more than the difference between the two launch monitors being compared. The room-work section of the cost page has the contractor ranges with sources.