BenQ TK800M vs BenQ TK850

BenQ TK800M and BenQ TK850 are both 4K projectors with the same 3,000 lumens, but they have slight differences in terms of image contrast and throw ratio.

BenQ TK800M has a throw ratio range of 1.47-1.76 while BenQ TK850 has a throw ratio range of 1.13-1.47:1. That’s to say, it requires a longer distance for BenQ TK800M to project the same screen than BenQ TK850.

In addition, BenQ TK850 has a larger image contrast. BenQ TK850 has a contrast of 30,000:1 while BenQ TK800M has a contrast of 10,000:1.

Product Name

BenQ TK800M

BenQ TK850

Product Image BenQ TK800M BenQ TK850
Price $1,449.00 $1,599.00
Our Rating 8.0 8.0
Brand BenQ BenQ
Category projector projector

Optical Parameters

BenQ TK800MBenQ TK850
Brand Brand BenQ BenQ
Brand Model Brand Model BenQ TK800M BenQ TK850
Brightness (ANSI lumens) Brightness (ANSI lumens) 3000 ANSI lumens 3000 lumens
Display Chip Display Chip 0.47 inch DMD chip 0.47 inch DMD chip
Display Technology Display Technology DLP DLP
Standard Resolution Standard Resolution 4K(3840*2160) 4K(3840*2160)
Maximum Supported Resolution Maximum Supported Resolution 4K(3840*2160)
Image Contrast Ratio Image Contrast Ratio 10000:1 30000:1
Throw Ratio Throw Ratio 1.47-1.76 (100 inches @ 3.25m) 1.13-1.47:1
Keystone Correction Keystone Correction Vertical: ± 40 degrees Vertical: ± 30 degrees
Lamp Life Lamp Life Normal mode: 4000 hours, economic mode: 8000 hours, intelligent power saving mode: 10000 hours Normal mode: 4000 hours, economic mode: 10000 hours, intelligent power saving mode: 15000 hours
Lamp Type Lamp Type Lamp Ultra high pressure mercury lamp
Focus technology Focus technology Auto

Projection Parameters

BenQ TK800MBenQ TK850
Product type Product type Home theater
Image Size Image Size,projector1 60-300 inches
Screen ratio Screen ratio 16:9 16:9
Screen color Screen color 92% Rec.709 color gamut 1.07 billion colors
Image Technology Image Technology HDR 10
3D Stereoscopic film is a type of film that was first introduced in Hollywood on May 24, 1953 when stereoscopic films appeared. Yes


BenQ TK800MBenQ TK850
I/O Connection Ports Connection Ports PC in (D-sub 15pin) (x1)
HDMI in (x2) ,HDMI-1 (2.0b/HDCP2.2) ,HDMI-2 (1.4b/HDCP1.4)
USB Type A (x1) ,USB Type A-1 (2.0/Power Supply1.5A)
USB Type Mini B (x1) ,USB Type Mini B-1(service)
RS232 in (DB-9pin) (x1)
DC 12V Trigger (3.5mm Jack) (x1)
Speaker (x1) ,5W Chamber
Audio in (3.5mm Mini Jack) (x1) ,1
Audio out (3.5mm Mini Jack) (x1) ,1
2 × HDMI(2.0b,HDCP2.2)
1 × RS232 In(D-sub 9pin,male)
1 × DC 12V Trigger(3.5mm Jack)
2 × IR Receiver(Front+Top)


BenQ TK800MBenQ TK850
Size(HxWxD) Size(HxWxD) 353×135×272mm 380×127×263mm
Power Usage Power Usage Normal mode: 385w, economic mode: 330W / 245W, standby power: < 0.5W Maximum: 350W, normal mode: 340W, economic mode: 280W, standby power: 0.5W
Noise Level Noise Level Normal mode: 33dB, economic mode: 29dB Normal mode: 30dB, eco mode: 28dB
Machine weight Machine weight 4.2kg 4.2kg
Accessories Accessories BenQ tk800   x1
Remote control / battery   x1
User manual CD   x1
Quick use manual   x1
Warranty card by Region   x1
Power cord by Region   x1
Lens cap   x1
host   x1
Remote control   x1
Battery   x1
power cord   x1
User manual CD   x1
Quick use manual   x1
warranty card   x1
Warranty Warranty 2 years
other other 3D