ViewSonic PX701HD

• Native resolution: Full HD (1920 × 1080) B&H Photo Video+2viewsonic.com+2

• Brightness: ~3,500 ANSI lumens teksel.si+1

• Throw ratio: ~1.50–1.65:1 (for 100″ screen at about 10.9′ / 3.3 m) B&H Photo Video+1

• Zoom: 1.1× optical zoom viewsonic.com

• Keystone: Vertical ±40° (or ± some) https://www.lt-computer.com+1

• Lamp based (not laser / LED) and some models list lamp life in SuperEco mode up to 20,000 hours. viewsonic.com+1

• Good for home/office use with moderate ambient lighting.

ViewSonic PX701‑4K

• Native or effective resolution: 4K UHD (3840 × 2160) via pixel-shift (XPR technology) B&H Photo Video+2RTINGS.com+2

• Brightness: ~3,200 ANSI lumens (in many listings) B&H Photo Video+1

• Throw ratio: ~1.50–1.65:1 projectorcentral.com+1

• Gaming friendly specs: support for 1080p at 240 Hz, low input lag ~4.2 ms in certain modes. RTINGS.com+1

• HDR support, auto vertical keystone + 4-corner adjustment in some variants. Projectorpoint+1

• Again, lamp-based (not laser) in most specs.