The light projected by the device is brighter, i.e. it has a higher ANSI lumens measurement.
Panasonic PT-DZ20K: 20000cd/m²
4. maximum projection size
The maximum size of image that a device can project without compromising quality.
InFocus IN5544: 603"
Elmo BOXi T-350: 17mm
Celluon PicoPro: 12.7mm
Celluon PicoPro: 181g
A bigger variety of brand lenses means that you have more options and can find one that suits your needs.
Sony VPL-VW60: 11
1920 x 1080px
Sony VPL-VW350ES: 4096 x 2160px
10. audio input ports
More audio input ports mean that more audio devices such as microphones and keyboards can be connected at once.
BenQ LW61ST: 4
11. audible noise
Audible noise is the noise that a device produces while in operation. Reduced audible noise improves quality.
Dream Vision Yunzi 1: 19dB
12. zoom ratio
Projector zoom allows you to increase or decrease the size of the projected image without moving the projector. Bigger zoom ratio provides more flexibility. The most common zoom ratio among today's projectors is 1.2. With a 1.2 zoom ratio you can vary the image size by 20% by simply adjusting the zoom lens.
Epson PowerLite Pro Cinema 6030UB: 2.1:1
13. power consumption on standby
How much power the device consumes when shut down but still plugged in.
Panasonic PT-AE8000U: 0.08W
14. power consumption operation
How much power the device consumes when it's switched on.