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BenQ TH685 vs Epson 2150

In this post, we will compare two entry-level gaming and sports projectors, the BenQ TH685 and Epson 2150, and see which one would be a smart buy.

Key Differences

FeatureBenQ TH685Epson 2150
Resolution1080p Full HD (1920×1080)1080p Full HD (1920×1080)
Brightness (ANSI lumens)3,5002,500
Contrast Ratio (FOFO)10,000:160,000:1
Speaker5W Speaker x 110W Speaker x 1


FeatureBenQ TH685Epson 2150
Projection SystemDLP3LCD
Resolution1080p Full HD (1920×1080)1080p Full HD (1920×1080)
Brightness (ANSI lumens)3,5002,500
Contrast Ratio (FOFO)10,000:160,000:1
Displayable Colors1.07 billion1.07 billion
Color ProfileRec.709Unknown
Native Aspect Ratio16:916:9


FeatureBenQ TH685Epson 2150
Light SourceLampLamp
Light Source LifeNormal – 4,000 hours
Eco -10,000 hours
SmartEco – 8,000 hours
LampSave – 15,000 hours
ECO mode: Up to 7500 hours
Normal mode: Up to 4500 hours

Content Support

FeatureBenQ TH685Epson 2150
HDR10 SupportYesNo
HLG SupportYesNo


FeatureBenQ TH685Epson 2150
Throw Ratio1.13~1.461.33 – 2.16
Zoom Ratio1.3x1.0 – 1.6x manual
Digital Lens ShiftVertical ±5%Vertical : +15%‎
Keystone AdjustmentVertical ±30°Vertical & Horizontal +/- 30 degrees‎
Image Size30″~300″30”~300”
Horizontal Frequency15K~102KHzUnknown
Vertical Scan Rate23~120HzUnknown

Dimensions and Weight

FeatureBenQ TH685Epson 2150
Dimensions (W x H x D) inches12″ x 4″ x 9″12.2″ x 4.8″ 11.2″
Net Weight lbs6.27.7


FeatureBenQ TH685Epson 2150
HDMI 2.1Not availableNot available
HDMI 2x 2 (HDCP 2.2)x 1
HDMI 1Not availablex 1 (MHL port)


FeatureBenQ TH685Epson 2150 HT2050A
Speaker5W x 110W x 1
Audio In3.5mmNot available
Audio Out3.5mm3.5mm
USB Power Outx1 USB-A (1.5a)x1 USB-A


FeatureBenQ TH685Epson 2150
Input Lag8.3ms@120Hz28ms@60Hz


FeatureBenQ TH685Epson 2150
Power SupplyVAC 100 ~ 240 (50/60Hz)100 – 240 V AC +/-10%, 50/60 Hz
Typical Power ConsumptionMax-340W
Normal: 312 W Lamp on
ECO Mode: 237 W Lamp on
Energy Saving: 0.2 W
Standby Power Consumption0.5W Max. at 100 ~ 240 VACNot available
Acoustic Noise (Typ./Eco.)Typical: 35dB
Eco: 29dB
29 dB – 37 dB
Operating Temperature0 ~ 40 ℃Not available

What’s in the Box

FeatureBenQ TH685Epson 2150
Remote ControlYesYes
Power CordYesYes
Batteriesx2 (AAA)x2 (AA)



The presence of HLG 2 HDMI 2.0 ports, and HLG Support, gives BenQ TH685 the upper hand. However, Epson 2150 a better contrast ratio than BenQ TH685.

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BenQ TH685 also has very low input lag when comparing with Epson 2150 making it ideal for playing games or watching sports. But if your purpose is to watch only movies Epson 2150 would do good because of the good contrast ratio than BenQ TH685.