The difference that matters
The Blue Tees Golf Rainmaker fits a shorter room: about 13.5 ft minimum depth against 15 ft. Only the Blue Tees Golf Rainmaker is listed for outdoor use as well as indoors. At the prices we observed, the Ernest Sports ESB1 costs $225 less.
Side by side
| Specification | Ernest Sports ESB1 | Blue Tees Golf Rainmaker |
|---|---|---|
| Tracking | Radar | Radar |
| Detail | 3D Doppler radar | Doppler radar |
| Placement | Behind the ball | Beside the ball |
| Room depth (FOREference) | 15–17 ft | 13.5–15.5 ft |
| Stated ceiling | — | — |
| Spin | Measured | Measured |
| Ball data listed | 5 | 11 |
| Club data listed | 2 | 4 |
| Indoor / outdoor | Outdoor | Both |
| Ball marking | Not required | Not required (radar-enhanced balls optional) |
| Display | iOS or Android | 4.3-inch colour display; iOS or Android |
| Subscription | Not stated | 12 months of the GAME AI Launch membership included; renews for advanced metrics and simulator play |
| Weight | 1.5 lb | — |
| Price seen | $275 | $500 |
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?
Ernest Sports ESB1
Choose the Ernest Sports ESB1 if price leads the decision ($225 less).
Blue Tees Golf Rainmaker
Choose the Blue Tees Golf Rainmaker if your room is under about 15 ft deep or 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