The difference that matters
The Ernest Sports ESB1 measures spin directly, while the PRGR Portable Launch Monitor does not report it. Only the PRGR Portable Launch Monitor is listed for outdoor use as well as indoors.
Side by side
| Specification | Ernest Sports ESB1 | PRGR Portable Launch Monitor |
|---|---|---|
| Tracking | Radar | Radar |
| Detail | 3D Doppler radar | Doppler radar |
| Placement | Behind the ball | Behind the ball |
| Room depth (FOREference) | 15–17 ft | 15–17 ft |
| Stated ceiling | — | — |
| Spin | Measured | Not reported |
| Ball data listed | 5 | 4 |
| Club data listed | 2 | 1 |
| Indoor / outdoor | Outdoor | Both |
| Ball marking | Not required | Not required |
| Display | iOS or Android | On-unit screen |
| Subscription | Not stated | Not stated |
| Weight | 1.5 lb | 0.31 lb |
| Price seen | $275 | $230 |
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?
PRGR Portable Launch Monitor
Choose the PRGR Portable Launch Monitor if you also want to use it at the range.
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