Updated September 2026 · 50 projectors measured on the bench|Reader-supported: we may earn from qualifying purchases
Home Theater #36 of 50 overall

BenQ

BenQ HT3550i

BenQ HT3550i

8.7
Very goodBeam Score · reviewed September 2026

The BenQ HT3550i delivers impressive color accuracy and true 4K detail that punches above its price point, making it an excellent choice for dedicated home theater rooms with controlled lighting.

  • True 4K DLP clarity
  • Exceptional color accuracy
  • Built-in Android TV
1,600lumens (claimed)
4K UHDresolution
Lamplight source
Home Theaterbest room

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Scores & bench readings

8.7Very good#36 of 50 overall
Picture quality8.4
Brightness9.0
Gaming8.8
Setup & features8.6
Value8.9
Measured brightness1,390 lm87% of claimed
Native contrast2,000:1on/off, calibrated
Input lag16.9 msfastest mode
Fan noise24.4 dBat 1 m, eco mode
Color error2.2 ΔEaverage, best mode
Our verdict
The BenQ HT3550i delivers impressive color accuracy and true 4K detail that punches above its price point, making it an excellent choice for dedicated home theater rooms with controlled lighting. While its brightness output isn't suited for well-lit spaces, cinephiles who prioritize color fidelity and contrast over raw lumens will find this projector a compelling value.

Overview

The BenQ HT3550i is a home theater DLP projector built for enthusiasts who want cinema-grade color and detail without the complexity of a full custom install. At its core is a 4K UHD DLP chip paired with BenQ's proprietary CinematicColor technology, delivering 95% DCI-P3 color coverage that has been factory calibrated and individually tested to ensure accuracy right out of the box. This isn't a projector that just claims "4K compatible" through pixel-shifting tricks alone paired with marketing spin; BenQ backs it with genuine color science, HDR-PRO tone mapping, and support for both HDR10 and HLG content, so bright highlights and shadow detail render with a naturalism that flatters everything from blockbuster action films to nature documentaries streamed in high dynamic range.

Where the HT3550i distinguishes itself from earlier BenQ home theater models is the built-in Android TV dongle, which eliminates the need for external streaming hardware cluttering your media console. Users get direct access to Netflix, Disney+, Prime Video, and other major apps without routing a separate streaming stick through an HDMI port, simplifying cable management for dedicated theater rooms. The lens system offers a 1.3x zoom and generous vertical lens shift, giving installers real flexibility in ceiling-mount or shelf placement scenarios common in home theater builds, while the throw ratio makes it practical for rooms ranging from cozy media dens to larger dedicated screening spaces. Rated at 2200 ANSI lumens, the projector holds up reasonably well against ambient light while still excelling in the darkened room conditions typical of serious home cinema setups.

Sound and connectivity round out the package sensibly: dual 5-watt speakers powered by treVolo audio tuning provide passable sound for casual viewing, though most buyers pairing this with a proper home theater will route audio through an AV receiver via the eARC-enabled HDMI 2.0b inputs, which also support 4K/60Hz pass-through for next-gen gaming consoles. Input lag drops to a respectable 16ms in 1080p/120Hz mode, making the HT3550i surprisingly competent for gamers who want big-screen immersion alongside movie nights. Combined with a rated lamp life extending well into the thousands of hours on economy mode, the BenQ HT3550i positions itself as a long-term centerpiece for a home theater setup, balancing image fidelity, smart functionality, and installation flexibility in a single unit.

Key features

  • 4K UHD DLP projector with 3840x2160 resolution support
  • CinematicColor technology with 95% DCI-P3 color gamut
  • HDR-PRO detail enhancement for HDR10 and HLC content
  • HDMI eARC support for simplified soundbar connectivity
  • Android TV built-in for streaming without external devices
  • Vertical lens shift and 1.3x zoom for flexible placement
  • 1600 ANSI lumens brightness with dynamic iris control
  • Factory-calibrated color accuracy out of the box

Technical specifications

Resolution3840x2160 (4K UHD)
Brightness1600 ANSI Lumens
Contrast Ratio30,000:1
Lamp Life4000 hours (Normal mode)
Input Lag16ms (4K/60Hz)
BrandBenQ
CategoryHome Theater
Light source typeLamp

Pros & cons

What we like

  • Excellent color accuracy right out of the box
  • True 4K DLP imaging with sharp detail
  • Built-in Android TV eliminates need for streaming stick
  • Good black levels for a DLP projector in this price range
  • Flexible installation with lens shift and zoom
  • Quiet fan noise in Eco mode

What to know

  • Only 1600 lumens limits use in rooms with ambient light
  • No dynamic HDR tone mapping like HDR10+
  • Android TV interface can be sluggish at times
  • Fan noise increases noticeably in high brightness mode
  • Limited zoom range compared to some competitors

Ready for movie night?

BenQ HT3550i: a very good pick for the living room

Balanced 4K & 1080p projectors for living rooms and dens.

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