Radar launch monitor · Behind the ball

Voice Caddie Swing Caddie SC4 PRO

Voice Caddie · indoor & outdoor · spin calculated

The short answer

The Voice Caddie Swing Caddie SC4 PRO is a Doppler radar launch monitor that sits on the floor behind the ball, looking down the target line. Spin is calculated from club data rather than measured. Plan on about 15–17 ft of room depth. Listed at $500 from Voice Caddie.

Tracking
Radar
Placement
Behind the ball
Room depth
15–17 ft
Spin
Calculated
Price seen
$500

Good fit if

  • You want one unit for the driving range and the garage
  • You want shot data on the unit without always opening an app
  • You have a deep room (about 17 ft) and want a low entry price

Look elsewhere if

  • You need measured spin — it calculates spin from club data
  • Your room is shorter than about 15 ft from screen to back wall
  • You don't want to use marked balls or stickers
  • You want club delivery data (path, face, attack angle) for coaching
$499.99Voice Caddie listed price · seen 30 Sep 2026

Every link opens the product page for this exact model. We may earn a commission; it never changes what we publish. Disclosure

Room size: will the Voice Caddie Swing Caddie SC4 PRO fit?

The Voice Caddie Swing Caddie SC4 PRO sits on the floor behind the ball, looking down the target line. A radar unit behind the ball has to see the ball fly before it hits the screen, so depth is the critical dimension.

DimensionWhat to plan forHow it's worked out
Depth, screen to back wall15 ft minimum · 17 ft comfortable1 ft screen gap + 8 ft of ball flight + 5 ft unit distance + 1 ft behind the unit
Width, right-handed only10 ft minimum · 12 ft comfortableSwing arc on both sides of the golfer
Width, left- and right-handed12 ft minimumCentered hitting area so either stance fits

Ceiling height for a full driver swing

Golfer heightEstimated ceiling neededWorking
5′6″8′ 10″66 in + 45.5 in × sin 45° + 1.5 in mat + 6 in margin
5′10″9′ 2″70 in + 45.5 in × sin 45° + 1.5 in mat + 6 in margin
6′2″9′ 6″74 in + 45.5 in × sin 45° + 1.5 in mat + 6 in margin
6′5″9′ 9″77 in + 45.5 in × sin 45° + 1.5 in mat + 6 in margin
FOREference calculationEstimated ceiling = golfer height + driver length × sin 45° + mat height + a safety margin. Steep, upright swings need more; test with a practice swing before you buy. Run your own numbers.

What it measures, and how

The listing shows 12 ball parameters and 1 club parameter. Spin is derived from club data rather than read from the ball, so spin-driven numbers such as carry on wedges and curve are estimates.

GroupParameters listed by the seller
Ball data (12)Carry distance, Total distance, Ball speed, Smash factor, Apex, Launch angle, Launch direction, Spin rate, Spin axis, Side spin, Back spin, Dispersion
Club data (1)Swing speed
  • Ball marking: Not required
  • Club marking: Not required

Software, subscriptions and five-year cost

Software listed: MySwingCaddie app and Built-in 3D driving range. No third-party simulator platform is named in the listing.

Cost itemAmount
Hardware (listed price)$500
SubscriptionNot stated in the listing — check before buying
FOREference calculationFive-year total = listed hardware price + 5 × the listed annual plan. Excludes tax, a PC, the screen and enclosure. Build your full five-year budget.

Building a simulator around it

Behind-the-ball radar is indifferent to handedness: left- and right-handed golfers hit from the same spot.

What else a full simulator needs

Packages built around the Voice Caddie Swing Caddie SC4 PRO

8 specialist-retailer packages in our catalog include this launch monitor, from $630 to $5,700.

See all 8 Voice Caddie Swing Caddie SC4 PRO packages.

How it compares

ModelTrackingPlacementSpinRoom depthPrice seen
Voice Caddie Swing Caddie SC4 PRORadarBehind the ballCalculated15–17 ft$500
Garmin Approach R10RadarBehind the ballCalculated17–19 ft$500
Blue Tees Golf RainmakerRadarBeside the ballMeasured13.5–15.5 ft$500
FlightScope Mevo (original)RadarBehind the ballCalculated17–19 ft$499

Room depth uses the same FOREference method for every model, so the column is comparable; prices are the lowest listed by the lead seller on the date shown.

Fit check: Voice Caddie Swing Caddie SC4 PRO

Worked out from the seller's published figures and our stated room method. Confirm against your space.

✓ Required? Check firsti Good to know
  • ✓Room depth15 ft minimum, 17 ft comfortable (1 ft screen gap + 8 ft of ball flight + 5 ft unit distance + 1 ft behind the unit).
  • iDisplay deviceOn-unit display; iOS and Android app
  • ?Balls & markersNot required; club: Not required
  • iSimulator softwareNo third-party platform named.
  • iLeft-handed golfersBehind-the-ball radar is indifferent to handedness: left- and right-handed golfers hit from the same spot.
  • iOutdoor useListed for indoor and outdoor use.

Specifications

Each figure is labelled with where it comes from. Numbered references link to the source list below.

Manufacturer storeRetailer listingFOREference calculationNot verified

Published specifications

Tracking technologyDoppler radar[S1]Retailer listing
PlacementFloor unit behind the ball (radar looks down the target line)[S1]Retailer listing
Indoor / outdoorIndoor and outdoor[S1]Retailer listing
Distance behind the ball4–6 ft[S1]Retailer listing
Ball markingNot required[S1]Retailer listing
Club markingNot required[S1]Retailer listing
SpinCalculated from club data (not measured)[S1]Retailer listing
Shot delayAbout 1 second[S1]Retailer listing
DisplayOn-unit display; iOS and Android app[S1]Retailer listing
SoftwareMySwingCaddie app, Built-in 3D driving range[S1]Retailer listing
Dimensions7.59 × 4.88 × 1.14 in[S1]Retailer listing
Weight0.96 lb[S1]Retailer listing
Warranty1-year[S1]Retailer listing
Ball data listedCarry distance, Total distance, Ball speed, Smash factor, Apex, Launch angle, Launch direction, Spin rate, Spin axis, Side spin, Back spin, Dispersion[S1]Retailer listing
Club data listedSwing speed[S1]Retailer listing

FOREference calculations

Room depth (FOREference method)15 ft minimum · 17 ft comfortableFOREference calculation
Ceiling for a 5′10″ golfer (driver)9′ 2″FOREference calculation

Limitations to weigh

  • Spin is calculated from club data, not measured from the ball.
  • Needs a deep room: about 15 ft minimum.

Alternatives worth comparing

Where to buy

5 specialist sellers list this exact product. Prices were observed on 30 Sep 2026; confirm the current price, stock and included items before ordering.

SellerListed priceType
Voice Caddie$499.99Manufacturer store
Rain or Shine Golf$599.99Specialist retailer
PlayBetter$599.99–$649.98Specialist retailer
Shop Indoor Golf$549.99Specialist retailer
Spornia$599.99Specialist retailer
$499.99Voice Caddie listed price · seen 30 Sep 2026

Every link opens the product page for this exact model. We may earn a commission; it never changes what we publish. Disclosure

Questions buyers ask

Does the Voice Caddie Swing Caddie SC4 PRO work with GSPro?
GSPro is not named in the listing we used. Check with the seller before relying on it.
How much room does the Voice Caddie Swing Caddie SC4 PRO need?
Using the FOREference method, about 15 ft of depth at minimum and 17 ft to be comfortable, 10 ft of width for right-handed play (12 ft if left- and right-handed golfers share it), and roughly 9′ 2″ of ceiling for a 5′10″ golfer swinging a driver.
Does the Voice Caddie Swing Caddie SC4 PRO need a subscription?
The listing does not state a subscription. Confirm what is included before you buy.
Does the Voice Caddie Swing Caddie SC4 PRO measure spin?
It calculates spin from club data rather than measuring it.
Can left-handed golfers use the Voice Caddie Swing Caddie SC4 PRO?
Behind-the-ball radar is indifferent to handedness: left- and right-handed golfers hit from the same spot.
Can the Voice Caddie Swing Caddie SC4 PRO be used outdoors?
Yes — it is listed for indoor and outdoor use.

Sources and verification

  1. Rain or Shine Golf — Swing Caddie SC4 PRO — product page and specifications Retrieved 30 Sep 2026
  2. Voice Caddie — SC4 PRO Launch Monitor + 3D Driving Range Simulator — product page Retrieved 30 Sep 2026
  3. PlayBetter — Swing Caddie SC4 PRO Portable Golf Launch Monitor & Simulator — product page Retrieved 30 Sep 2026
  4. Shop Indoor Golf — Swing Caddie SC4 Launch Monitor — product page Retrieved 30 Sep 2026
  5. Spornia — Swing Caddie SC4 PRO Golf Launch Monitor/Driving Range Simulator — product page Retrieved 30 Sep 2026

FOREference has not tested this product hands-on. This reference is compiled from the sources above; our calculations are labelled and show their working. Last verified 30 Sep 2026. How we work