Swing Caddie SC300i
Space requirements
Voice Caddie: '5 ft behind the ball on the same level as the ball'; measuring range 10-370 yards (display states 20-370).
- 5 ft behind the ball for the unit itself — radar-style placement eats room depth.
- Width: 10 ft workable offset, 14 ft for a centered both-handed bay (industry guidance — see model).
What it measures
Ball data (6): carry distance, total distance, ball speed, launch angle (in app), apex, spin rate (in app)
Club data (2): swing speed, smash factor
Measured vs. calculated: K-band 24 GHz Doppler radar with barometric calibration measures speed, carry, launch angle and apex; spin rate is provided in the app (driver through 8-iron) and is app-derived rather than directly measured.
Accuracy: Voice Caddie spec: ±2% ball speed, ±3 yards carry distance in target mode. Golfers Authority (2026): carry within 3-5 yards and ball speed within 1-2 mph of Trackman.
Software & subscriptions
Compatible software: own app (MySwingCaddie)
Notes
Pricing: Voice Caddie list price $399.99 (June 2026); also sold at Costco and as factory refurbished direct from Voice Caddie.
Left-handed players: Sits directly behind the ball on the target line; no repositioning needed for left-handers.
5.3-inch LCD, voice distance output, remote control, up to 20 hr battery. No simulator-software integration (no E6 support per Voice Caddie's compare page — practice/data device only).
Release year: 2021 · Connectivity: Bluetooth · Indoor: yes · Outdoor: yes