When comparing BenQ TH670 vs Epson Home Cinema 5040UB, the Slant community recommends Epson Home Cinema 5040UB for most people. In the question“What are the best projectors?” Epson Home Cinema 5040UB is ranked 2nd while BenQ TH670 is ranked 7th. The most important reason people chose Epson Home Cinema 5040UB is:
When playing 4K content, this Epson has an amazingly detailed picture. 5040UB uses pixel-shifting, which approximates the image of a native 4K projector. It does not produce an actual 4K picture like a 4K projector does, but it makes the content look much sharper than 1080p.
Specs
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Pros
Pro Very good picture quality
BenQ TH670 has a resolution of 1920x1080, producing a detailed Full HD picture. It has a white brightness of 3000 lumens so it's bright enough to deal with ambient light in a family room.
Compared to other inexpensive HD projectors, the TH670 has the best contrast. A contrast ratio of 10 000:1 means there is a reasonably large difference between the blacks and whites this BenQ projects on the screen. This helps create a life-like picture. The contrast ratio (as for TH670’s competitors) is boosted by BrilliantColor technology. Unlike its competitors, the BrilliantColor can be disabled. This lets you choose between a high contrast or better colors, depending on the content.
Pro Quiet fans
The fans produce 29 dB of sound in Eco-Mode. In normal mode the noise-level is 31 dB. From a few feet away, you can not even hear it.
Pro A fairly long-lasting lamp
It has a lamp life of 4000 hours in Performance Mode. If you use it in Eco-Mode only, it will last up to 10 000 hours. In case the lamp dies or you want it to be as bright as new again, a replacement lamp costs $199.
Pro Works as a business projector
Though the TH670 is a great home cinema, it also does well as a business projector. It delivers a very detailed picture with clear content. Even very small black text (5-6 points) on a white background does not get blurry and can be read easily.
Pro Light and small
The projector weighs only 6.6 lbs, so it is easy to transport. It measures at 5.4 x 12.8 x 9.2 inches, making it is easy to store when you are not using the projector.
Pro 3D support
The projector has 3D support, though you will need to purchase suitable 3D glasses since they are not included.
Pro Back-lighting on the remote
The remote has back-lighting on its buttons. Since projectors are used in a dark room, this comes in handy.
Pro Low input lag for gaming
The input lag is 33.1 in game mode, 33.9 in cinema mode, and 35.2 if you turn on Brilliant Color. In other words, the projector is suitable for competitive gaming.
Pro Great built-in speakers
It has a 10W built-in speaker with clear and loud audio, so external speakers might not even be necessary in a small room.
Pro 4K content support
When playing 4K content, this Epson has an amazingly detailed picture. 5040UB uses pixel-shifting, which approximates the image of a native 4K projector. It does not produce an actual 4K picture like a 4K projector does, but it makes the content look much sharper than 1080p.
Pro Amazing picture
The 5040UB is bright, at around 2500 color brightness and 2500 white brightness, thanks to its 3LCD technology. It has vibrant colors and a bright picture and an outstanding contrast ratio of 1 000 000:1.
Though the number is boosted by the dynamic iris (regulates light output actively), the native contrast ratio is still 4600:1, ensuring a detailed picture also during darker movie scenes.
Pro Convenient set-up
Exceptional set-up features ensure the picture is always in line with the screen. Powered lens position with 10 presets give you different settings to choose from. Motorized focus, 2.1x zoom, and ultra wide lens shift let you set up the projector easily. The picture is easy to position on the screen.
Pro Quiet fans in Eco-Mode
The fans on 5040UB can be just a bit noisy in performance mode. In ECO mode they produce only 20dB of noise, which is barely noticeable.
Pro Low input lags for gaming
The input lag on this Epson is only 30.8 milliseconds, beating most of its rivals. If you want to use your projector for gaming, 5040UB is the best option.
Pro No rainbow effects
Like all LCD projectors, the Epson 5040UB will not show you any rainbow effects.
Cons
Con Complicated setup
There is no lens-shift for easier setup, so you have to be careful when first installing it in the room. Though it does have zoom-lens of 1.20:1.
Con Not great for 3D
If you want a great 3D experience, an inexpensive HD projector is not the best option. You will need a large picture size for a good 3D effect. TH670 will have a dim picture if you make the screen large and view it in 3D.
Con Average lamp-life and expensive lamp
The lamp life is 3500 hours, though it can go up to 5000 hours when used in Eco-Mode. Replacement are available for $300, which is on the expensive side.
Con Bad motion handling in 4K - blurry picture
Creative Frame Interpolation technology (fixes motion blur) does not work with the pixel-shifting technology. In other words, the picture might still get blurry during fast motion, when watching an enhanced 4K picture.