Blue Tees Rainmaker vs Voice Caddie Swing Caddie SC4 Pro
Side-by-side comparison of specs, features, and pricing
Specs updated
Maintained by GolfSim Compare Team · specs sourced, prices from dated retailer checks · how we compare
Why Blue Tees Rainmaker is better
- Price: $100 cheaper ($500 vs $600)
- Club data access: Club data included (Included vs Not available)
- GSPro support: GSPro: supported (Supported vs No)
- Sim software: 1 more sim title supported (2 titles vs 1 title)
Why Voice Caddie Swing Caddie SC4 Pro is better
- 3-year cost: $137 cheaper over three years ($600 vs $737)
- Battery life: 4 hours longer battery (10 hr vs 6 hr)
- Weight: 0.29000000000000004 lb lighter (1.3 lb vs 1.59 lb)
Specs Comparison
Blue Tees Rainmaker $500 vs Voice Caddie Swing Caddie SC4 Pro $600
| Specification |  Blue Tees Rainmaker $500 |  Voice Caddie Swing Caddie SC4 Pro $600 |
|---|---|---|
| Price | ||
| Price | $500 | $600 |
| Measurement | ||
| Tracking technology | Doppler radar | Doppler radar |
| Radar type | Single Doppler | Single Doppler |
| Spin measurement | Estimated | Estimated |
| Marked balls | Titleist RCT balls | Not required |
| Accuracy tier | Game-improvement | Game-improvement |
| Data points per shot | 20 | — |
| Ball data | ||
| Ball speed | Measured | Measured |
| Launch angle | Measured | Measured |
| Launch direction | Measured | Measured |
| Spin rate | Calculated | Calculated |
| Spin axis | Calculated | Calculated |
| Carry distance | Calculated | Calculated |
| Total distance | Calculated | Calculated |
| Apex height | Calculated | Calculated |
| Descent angle | Calculated | Not reported |
| Offline distance | Calculated | — |
| Club data | ||
| Club speed | Measured | Measured |
| Attack angle | Calculated | Not reported |
| Club path | Calculated | Not reported |
| Face angle | Not reported | Not reported |
| Face to path | — | Not reported |
| Dynamic loft | — | Not reported |
| Impact location | Not reported | Not reported |
| Smash factor | Calculated | Calculated |
| Club data unlock | Included | Not available |
| Space & environment | ||
| Environment | Indoor + outdoor | Indoor + outdoor |
| Placement | Behind the ball | Behind the ball |
| Setback (ft) | 5 | 5 |
| Min ball flight (ft) | — | 10 |
| Lefty / righty | No repositioning | No repositioning |
| Installation | None (portable) | None (portable) |
| Sim software | ||
| Simulator capable | ✓ Yes | ✓ Yes |
| GSPro support | Supported | No |
| E6 Connect support | Supported | Native |
| Awesome Golf support | No | — |
| FSX Play support | No | No |
| First-party software | LAUNCH 3D Range | E6-bundled; Voice Caddie S app 3D driving range (practice) |
| Sim software | — | OptiShot Orion |
| Included sim content | E6 Connect promotional offer included in box (Shop Indoor Golf listing). Blue Tees' own full-course simulation is planned 'as part of a future membership package later in 2026' - not live as of 2026-09-14. | Complimentary E6 Connect package: 5 courses + 1 driving range (Aviara Golf Club, Bandon Dunes, Stone Canyon Club, Sanctuary, Wade Hampton), no subscription. Official page says E6 is 'available on iOS and PC'; Breaking Eighty (2026-03) reports the bundled 5-course license as mobile-only. Full E6 library via optional E6 subscription (third-party cost). E6 integration was broken at the December 2024 launch (PlayBetter) but is documented working in 2026 reviews. |
| Subscription | ||
| Subscription (per year) | $79/yr | None |
| Works without subscription | Standalone without membership: 13 on-device metrics on the 4.3-in display, 1,000-shot onboard storage, Practice / Target Distance / Swing Speed modes, magnetic remote, multiplayer - no phone required. Third-party sim integrations are stated to come without extra fees (Shop Indoor Golf). First year of the $79.99 AI/analytics membership is included with purchase. | Complete without any subscription: 8 metrics on the built-in display with voice output standalone; free Voice Caddie S (VCS) app adds the 3D range, spin axis/sidespin/backspin and dispersion. Only optional spend is expanding the E6 course library (third-party title cost). |
| Subscription trial | 1-year AI/analytics membership ($79.99 value) included with purchase | — |
| Connectivity & apps | ||
| Apps | iOS, Android | iOS, Android |
| Built-in display | LCD readout | LCD readout |
| Connectivity | — | Bluetooth |
| Offline mode | ✓ Yes | ✓ Yes |
| Physical & power | ||
| Weight (lb) | 1.59 | 1.3 |
| Dimensions (in) | 9.0 x 5.2 x 1.3 in | 4.88 x 7.59 x 1.14 in |
| Battery life (hours) | 6 | 10 |
| Power source | Rechargeable battery | Rechargeable battery |
| Charging port | USB-C | — |
| Alignment | — | Alignment stand |
| In the box | protective carry case, USB-C charging cable, magnetic remote, quick start guide, E6 Connect promotional offer | SC4 Pro launch monitor, magnetic remote control, USB cable, user manual, alignment stand, E6 Connect 5-course license |
| Warranty | ||
| Warranty (months) | — | 12 |
Buy the Blue Tees Rainmaker
Buy the Voice Caddie Swing Caddie SC4 Pro
Keep shopping
Jump straight to full specs and where to buy either model, or keep exploring related picks.
Both units here are Doppler-radar launch monitors, per their recorded specs. What that difference means for spin, space, and indoor use is covered in our guide to radar vs camera launch monitors .