BenQ W4100i review

A bright 4K home theatre projector with smart features built in rather than bolted on.

The verdict: The W4100i is a bright true 4K projector with smart streaming built in, and it suits a living room far better than the enthusiast projectors that assume a blacked-out space. Buy it if you want a capable 4K projector that works without a separate streaming box and a dedicated room. Buy the Epson 5050UB if you have a dark room and care most about black level, because that is where the enthusiast models still pull ahead.
Best smart 4K projector
BenQ W4100i 4K HDR Smart Home Theater Projector
~$2,800

A 4K HDR home theatre projector rated around 3,200 lumens with integrated smart streaming.

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Specifications

SpecDetail
ResolutionTrue 4K
BrightnessApproximately 3,200 lumens
HDRHDR support
Smart featuresIntegrated streaming platform
ColourBenQ factory calibration

Specifications above come from BenQ's published specifications. Treat pricing as approximate, since Amazon pricing moves.

What it does well

Where it falls short

What owners report

Brightness and ease of setup dominate owner reports. People describe it as the projector that worked in the room they actually have, rather than the room a projector wants. The integrated streaming is mentioned positively more often than built-in smart platforms usually are.

Owners comparing it directly with the Epson enthusiast models consistently note the black level difference in dark scenes. Those using it in a living room with any ambient light generally do not raise it, because ambient light was already setting the floor.

Who it suits

Who should skip it

Alternatives worth considering

Dark Room Alternative
Epson Home Cinema 5050UB 4K PRO-UHD Projector
~$3,000

Deeper blacks, far more placement flexibility and lens memory, for a room you can darken. No smart platform, and it needs a streaming device.

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Cheaper Sibling
BenQ HT3560 True 4K Home Cinema Projector
~$2,100

The same manufacturer's cinema-focused model for less money, with excellent colour but lower brightness and no smart platform. Better for a controlled room, worse for a living room.

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Common questions

Is built-in streaming worth having in a projector?

It removes a box, a cable and a remote, which is genuinely convenient. The counterargument is that streaming platforms age faster than projectors, so in a few years an external stick may outperform the built-in one. It is a convenience feature rather than a reason to choose a projector.

Is the W4100i bright enough for a living room?

At roughly 3,200 lumens, yes, in a room with curtains or blinds you can partly close. For a room with uncontrolled direct sunlight, an ultra short throw projector on an ambient light rejecting screen is the right category instead.

BenQ W4100i or Epson 5050UB?

Room type decides. Dedicated dark room, take the Epson for black level, lens shift and lens memory. Living room with ambient light, take the BenQ for brightness and convenience, since the Epson's contrast advantage is partly erased by room light anyway.

Is it true 4K?

Yes, a native 4K imaging path rather than pixel shifting from 1080p panels. At normal seating distances resolution is rarely what separates projectors, but it is a genuine specification advantage over the pixel-shifting Epsons.

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This review draws on published specifications, manufacturer figures and the consensus of verified owner reviews. We have not tested this product ourselves, and we say so rather than implying otherwise. As an Amazon Associate we earn from qualifying purchases.