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BenQ HT3550 Projector Review

Tested using Methodology v0.8
Reviewed Feb 13, 2024 at 10:37 am

The BenQ HT3550 is a 4k HDR projector primarily meant for watching movies. It projects a 100" image at a distance of 8.2 to 10.7 feet, 120" at a distance of 9.9 to 12.8 feet, and a very large 150" at a distance of 12.3 to 16 feet. The projector comes with auto vertical keystone technology to eliminate trapezoid effects when installed at an angle and includes a lens shift feature of up to 10% on the vertical axis. Finally, it has two HDMI 2.0b ports for 4k @ 60Hz gaming and two integrated 5W speakers.

Our Verdict

7.0 Movies

The BenQ HT3550 is decent for watching movies. Its native contrast is very good, and its brightness is alright, leading to deep blacks and a bright enough image when watched in a dark room. The projector has a very wide color gamut, but unfortunately, it's just not bright enough to make its colors look vibrant. The projector's color accuracy before calibration is poor, so you need to calibrate it if color accuracy matters to you.

  • Very good contrast for deep blacks in dark rooms.
  • Very wide color gamut.
  • Projector isn't bright enough to project vibrant colors.
  • Poor pre-calibration accuracy.
  • 7.0 Movies
  1. Updated Feb 13, 2024: Review published.

Differences Between Sizes And Variants

We bought and tested the BenQ HT3550. This projector has a higher-end model, the BenQ HT3550i, which has Bluetooth and Wi-Fi and comes with the BenQ QS01 Android TV dongle.

Model Wi-Fi/Bluetooth Included Android TV dongle
BenQ HT3550 No No
BenQ HT3550i Yes Yes

Compared To Other Projectors

The BenQ HT3550 is a decent mid-tier 4k HDR projector for watching movies in a dark room due to its very good contrast and very wide color gamut. However, there are better options, with the ViewSonic PX701-4K being almost as good for a lot less money and the slightly more expensive BenQ TK700STi being better for watching movies and much better for gaming.

Epson Home Cinema 3800

The Epson Home Cinema 3800 is much better than the BenQ HT3550. The Epson is much brighter, with significantly brighter colors. It's also vastly more accurate before calibration and has near-perfect accuracy post-calibration. The BenQ is smaller and lighter and has auto keystone correction on the vertical axis, so it's easier to carry around and faster to install.

BenQ TK700STi

The BenQ HT3550 and BenQ TK700STi are meant for different uses, as the HT3500 is primarily meant for home theater use, while the TK700STi is a gaming projector. Still, the TK700STi is no slouch for watching movies due to its very good contrast and decent brightness, making it a tad better overall than the HT3550. However, the HT3550 is significantly more colorful and much more accurate than the TK700STi post-calibration, making it the better choice for color aficionados.

Epson Home Cinema 5050UB

The Epson Home Cinema 5050UB is much better than the BenQ HT3550. The Epson is much brighter, with significantly brighter and saturated colors due to its brightness and excellent color gamut. It's also vastly more accurate before calibration and has fantastic accuracy post-calibration. The BenQ is smaller and lighter and has auto keystone correction on the vertical axis, so it's easier to carry around and faster to install.

BenQ HT2050A

The BenQ HT3550 is slightly better than the BenQ HT2050A. The HT3550 is a more recent release with 4k HDR support, while the HT2050A is an older model that's limited to 1080p and lacks HDR. The HT3550 also has a much wider color gamut, although neither projector is bright enough to make colors pop. Regarding image quality, the older HT2050A has slightly better contrast and peak brightness, although the HT3550 looks sharper due to its higher resolution.

Test Results

perceptual testing image
Height 5.1" (12.9 cm)
Width 14.8" (37.7 cm)
Depth 10.2" (26.0 cm)
9.5 lbs (4.3 kg)

The BenQ HT3550 projector isn't meant to be portable as it's a big projector without an integrated battery, so you need to plug it in. It has auto keystone correction, but only on the vertical axis, so you still need to center it horizontally to avoid a crooked image. It doesn't have autofocus, so you must manually adjust that to get the clearest image possible.

Projector Technology
Imaging Technology
Light Source
Pixel Shift 4k
Aspect Ratio
16 : 9
Minimum Throw Ratio
Maximum Throw Ratio

This DLP projector uses a lamp as its light source, which can last from 4000 to about 15000 hours depending on the selected eco mode, after which you'll need to swap the lamp for a new one. It's not a true 4k projector, as it uses pixel shifting to create a higher-resolution image. This offers better quality than a pure 1080p projector, but not as good as a native 4k projector.

Picture Quality
Picture Quality
White Light Output
856 lm
Color Light Output
677 lm
Brightness Uniformity
Screen Brightness
92 cd/m²

This projector has okay brightness. It offers an acceptable viewing experience in a dark room. Unfortunately, its colors are not very vibrant.

Picture Quality
Native Contrast
179 : 1

The BenQ HT3550 has a very good native contrast, leading to deep blacks in a dark room.

Picture Quality
Pre-Calibration Color Accuracy
White Balance dE
Color dE
Color Temperature
7,280 K
Picture Mode
Color Temp Setting
Gamma Setting

The projector has disappointing color accuracy out-of-the-box. Its white balance is off, with blues and greens being overrepresented in most shades of white. Its gamma curve is peculiar; the projector is always overbrightened, but bright scenes are extremely so. Finally, the projector's color temperature is very cold, giving everything a blue-ish tint.

Picture Quality
Post-Calibration Color Accuracy
White Balance dE
Color dE
Color Temperature
6,429 K
White Balance Calibration
2 point
Color Calibration
Picture Mode

The projector's image accuracy post-calibration is great. Its white balance is now excellent overall, with only minor color accuracy issues in the brightest whites. Gamma is now much better, with very dark and very bright scenes still slightly overbrightened. Color temperature is now almost exactly on target.

Picture Quality
Color Gamut
Rec. 709 xy
Rec. 709 uv
Rec. 2020 xy
Rec. 2020 uv

The BenQ HT3550 has an excellent color gamut. It does a fantastic job with the Rec. 709 color space used with SDR content and even does a very good job with the wider Rec. 2020 color space.

Inputs & Connectivity
Wi-Fi No
USB Data Ports

The projector has a 12v trigger out port to connect your screen to it; this allows you to signal the screen to unfold when the projector powers on and inversely retract the screen when the projector is powered off. Unfortunately, the projector doesn't support Bluetooth or Wi-Fi.

Smart Features & Sound
Smart OS
Cast Capable

The BenQ HT3550 doesn't have a smart OS, but it does have two 5W speakers.

In The Box

  • Power cable
  • Remote control
  • 2x AAA batteries
  • User documentation