When comparing LG PH300 vs Canon Projector Rayo R4, the Slant community recommends LG PH300 for most people. In the question“What are the best portable projectors?” LG PH300 is ranked 1st while Canon Projector Rayo R4 is ranked 5th. The most important reason people chose LG PH300 is:
LG PH300 has a native 1280x720 high-definition resolution with a 16:9 aspect ratio. This is great for playing video content. For a pico-projector, the PH300 also has very decent black levels (the contrast ratio is 100 000:1).
Specs
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Pros
Pro Great picture for video content
LG PH300 has a native 1280x720 high-definition resolution with a 16:9 aspect ratio. This is great for playing video content. For a pico-projector, the PH300 also has very decent black levels (the contrast ratio is 100 000:1).
Pro Very small and light
This LG is only 2.5 x 3.5 x 4.5 inches in size. It weighs just one pound.
Pro Everlasting lamp
The lamp lasts for up to 30 000 hours, so you probably will never have to replace it. Replacement lamps for PH300 are hard to find anyways.
Pro Low input lag for gaming
It has a 33ms input lag, meaning you can take it to a lan-party or play video games on a big screen while travelling.
Pro Rather quiet fans
The fan noise is a high-pitch whiny noise: 26 dB in normal mode and 28 dB in high brightness mode. The projector is rather quiet, but you can still hear the fans buzzing.
Pro Great battery life
The battery lasts for up to 2.5 hours, lasting long enough to watch a movie or even two. Charging it takes 3 hours.
Pro Portable
Convenient to use as a portable device.
Pro High resolution
The resolution is comparatively high.
Cons
Con Poor sound quality
It’s not recommended to use the built-in audio system. These one-watt stereo speakers have disappointing sound quality.
Con Rainbow artifacts
It is a single-chip DLP projector, so you might experience a rainbow effect on the screen every once in a while.
Con Low quality picture
The 640 x 480 resolution produces a low-quality picture. Pretty much the only review for this projector is the original document from Canon, so there is no objective information available about the picture quality. They did state a contrast ratio of 800:1, which falls far behind the best portable options.
Con Low lamp-life
Though it's 10,000 hours, portable projectors usually reach 20,000-30,000 hours. Projector lamps lose brightness over time, so you might actually have to replace the lamp and the replacement is probably not available.