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Projectors fall into four broad categories: Ultraportables, conference room projectors, auditorium or fixed-installation projectors, and home theater ones which are sometimes multiuse units that double as home office projectors. Once you've selected your projector type, you should demo different models at the shops to see which best suits your needs and lifestyle.
Ultraportable | Conference |
Auditorium | Home theater
 Ultraportable projectors
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What to expect: Sub-2kg; 800 to 2,000 lumens; SVGA or XGA native resolution; single chip DLP; basic connectivity options; universal power adapter; carrying case available. Targeted at:
Road warriors; mobile professionals.
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Conference room projectors
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What to expect: 4 to 10kg; 1,000 to 3,000 lumens; SVGA or XGA native resolution; LCD and DLP; supports 16:9 widescreen format; multiple input connections, including component video; zoom lens; ceiling-mountable; Picture-in-Picture; optional user-changeable lens; improved onboard speakers. Targeted at: Classrooms; large meeting rooms.
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Auditorium projectors
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What to expect: Up to 40kg; 3,000 lumens and above; SVGA or XGA native resolution; mostly LCD; usually comes with ceiling or rear mount; motorized zoom lens; operated via remote control; offers multiple input and output ports for both PC and video; requires external speakers. Targeted at: Large venues like theaters, auditoriums and convention halls.
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Home theater projectors
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What to expect: 2 to 4kg; 700 to 2,500 lumens; SVGA or XGA native resolution; DLP and LCD; supports 16:9 widescreen format (especially for home theater models); optical zoom; more video input options. Targeted at: SOHO users; home theater buffs.
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