Swing Caddie SC4 discontinued
Space requirements
Voice Caddie: place ~5 ft behind the ball on the same level; for indoor simulator use, 10 ft from ball to net/screen recommended.
- 5 ft behind the ball for the unit itself — radar-style placement eats room depth.
- 10 ft minimum ball-to-screen per manufacturer/retailer guidance.
- Width: 10 ft workable offset, 14 ft for a centered both-handed bay (industry guidance — see model).
What it measures
Ball data (7): carry distance, total distance, ball speed, launch angle, launch direction, apex, spin rate
Club data (2): swing speed, smash factor
Measured vs. calculated: K-band 24 GHz Doppler radar measures speeds and launch; Voice Caddie does not publish a full measured-vs-calculated breakdown. The SC4 Pro's extra spin metrics (backspin, sidespin, spin axis, dispersion) are machine-learning/app-derived additions on the same hardware.
Accuracy: No numeric accuracy claim published in current listings.
Software & subscriptions
Compatible software: own app (Voice Caddie / MySwingCaddie) · E6 Connect
Notes
Pricing: Launched at $549, later dropped to $449; remaining third-party stock around $389 in 2026. No longer listed on Voice Caddie's site or compare page — superseded by the SC4 Pro (same radar hardware, new app/ML-derived metrics). Voice Caddie offered $349.99 SC4-to-Pro trade-in pricing.
Left-handed players: Sits directly behind the ball on the target line; no repositioning needed for left-handers.
Built-in LCD allows standalone use without a phone; includes remote control. E6 Connect bundle included 5 courses + 1 driving range (E6 not compatible with Android devices).
Release year: 2022 · Connectivity: Bluetooth · Indoor: yes · Outdoor: yes