BenQ 4KB257

BenQ 4KB257
Brand: BenQ
Category: projector
  • Lumens: 1800 ANSI lumens
  • Standard Resolution: 4K(3840*2160)
  • Display Chip:
  • Display Technology: DLP
  • CPU:
  • RAM:
  • Storage:

Our Rating

The overall rating is based on review by our experts

8 4.0 1
  • Design 8 / 10
  • Picture Quality 9 / 10
  • Brightness 7 / 10
  • Performance 8 / 10

BenQ 4KB257 is a 4K projector for home theater use. It adopts DLP display technology and UHP as the light source, producing images with 1,800 ANSI lumens and high contrast of 100,000:1. BenQ 4KB257 features CinemaMaster Audio and HDR Pro, providing cinematic viewing and audio experience.

BenQ 4KB257 - Specs

Optical Parameters

Brand Brand BenQ
Brand Model Brand Model BenQ 4KB257
Brightness (ANSI lumens) Brightness (ANSI lumens) 1800 ANSI lumens
Display Technology Display Technology DLP
Standard Resolution Standard Resolution 4K(3840*2160)
Maximum Supported Resolution Maximum Supported Resolution 4K(3840*2160)
Image Contrast Ratio Image Contrast Ratio 100000:1
Throw Ratio Throw Ratio 1.36-2.18
Keystone Correction Keystone Correction Vertical: ± 40 degrees
Lamp Life Lamp Life Normal mode: 4000 hours, economic mode: 10000 hours, intelligent power saving mode: 10000 hours
Lamp Type Lamp Type Ultra high pressure mercury lamp

Projection Parameters

Product type Product type Home projector
Image Size Image Size,projector1 60-200 / 300 inches
Screen ratio Screen ratio 16:9


I/O Connection Ports Connection Ports 1 x HDMI (2.0 b)

Output port 1× audio output (Mini Jack)

1 x SPDIF audio out

Control port 3 x USB (Type-A)

1 x USB (Type Mini B)

1×RS-232 (DB-9 pin)

1 x 12V Trigger (Mini Jack)

1 x RJ 45 LAN


Size(HxWxD) Size(HxWxD) 492×168×349mm
Machine weight Machine weight 6.5kg
Accessories Accessories Projector   x1
Remote control (with battery)   x1
Power cord (3m)   x1
User manual CD   x1
warranty card   x1
User manual   x1
Lens cap   x1
other other 3D


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