Same price ≈ US$1,050
- Brightness (ANSI / ISO lumens) 5,000 lm vs 2,600 lm
- Audio output
- HDMI inputs 3 vs 2
- Lens shift Vertical vs Vertical and horizontal
- Automatic keystone correction
10 home cinema projectors at a similar price that compete with the GP520 — what each does better, what it gives up and how the price compares.