The Trackman iO DUO fits a shorter room: about 13.5 ft minimum depth against 18 ft. The Trackman 4 lists more club data (16 parameters against 2). Only the Trackman 4 is listed for outdoor use as well as indoors. The Trackman iO DUO mounts on the ceiling, so left- and right-handed golfers can share it without moving it. At the prices we observed, the Trackman iO DUO costs $7,000 less.
Side by side
| Specification | Trackman 4 | Trackman iO DUO |
|---|---|---|
| Tracking | Radar + camera | Radar + camera |
| Detail | Dual radar with integrated camera (Doppler and photometric) | Optically enhanced radar with dual cameras and infrared lighting |
| Placement | Behind the ball | Ceiling, in front of the ball |
| Room depth (FOREference) | 18–19 ft | 13.5–15.5 ft |
| Stated ceiling | 10 ft | 9 ft |
| Spin | Measured | Measured |
| Ball data listed | 12 | 13 |
| Club data listed | 16 | 2 |
| Indoor / outdoor | Both | Indoor |
| Ball marking | Not required | Not required |
| Display | PC, iOS or Android | PC |
| Subscription | Not stated | Not stated |
| Weight | 6.2 lb | 8.6 lb |
| Price seen | $25,995 | $18,995 |
Highlighted rows differ. Figures come from each product's sources; room depth, distances and brightness are FOREference calculations using the same method for both.
Which should you choose?
Trackman 4
Choose the Trackman 4 if you want club delivery data (path, face, loft) or you also want to use it at the range.
Trackman iO DUO
Choose the Trackman iO DUO if your room is under about 18 ft deep or you want a clear floor or share the room with a left-handed golfer.
Before you buy either
- Check the room: room size calculator and ceiling height calculator.
- Confirm what each seller includes — accessories, software trials and bundles change often.
- Read the limitations on each full reference page.
FOREference compares published specifications; we have not tested these products side by side. How we work · Disclosure