ProjectorsMFR-VERIFIED
BenQ TH685
BenQ
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Check it in the builder →Where to buy
TRACKED RETAILER OFFERSbenq.comCHECKED 1 DAY AGO$799 →
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Specifications · per-field provenance
● SOURCE-TRACKEDWhere we have it, each spec shows where the data came from.
TechnologyDLP 1chipManufacturer
Native Resolution1080p FHDManufacturer
Brightness Lumens3500Manufacturer
Contrast Ratio Dynamic10,000:1Manufacturer
HDR SupportHDR, HLGManufacturer
Light Source Typelamp UHPManufacturer
Lamp Life Normal Hrs4000Manufacturer
Throw Ratio Min1.127Manufacturer
Throw Ratio Max1.46Manufacturer
Throw TypestandardManufacturer
Optical Zoom Range1.3xManufacturer
Native Aspect Ratio16:9Manufacturer
Keystone VerticalYesManufacturer
Input Lag Ms 4k6033.4Manufacturer
HDMI Inputs2Manufacturer
HDMI Version2.0bManufacturer
HDMI Max Bandwidth Gbps18Estimated
Rs232 PortYesManufacturer
Width Inches12.2Manufacturer
Height Inches4.3Manufacturer
Depth Inches8.8Manufacturer
Weight Lbs6.2Manufacturer
Noise DB Normal35Manufacturer
Power Consumption W297Manufacturer
Common questions
ANSWERED FROM THE DATADoes the BenQ TH685 need a special screen?
No UST-specific constraint — the BenQ TH685 is a conventional-throw design per its stated throw type, so standard screen materials work. In a room with ambient light, an ALR screen preserves contrast; the builder checks the projector-screen pairing either way.
How bright is the BenQ TH685?
3,500 lumens, as claimed by the manufacturer. Brightness figures are measured in flattering picture modes, so expect less in an accurate cinema mode — they're still the right way to rank projectors against each other, just not the number you'll see on the wall.
Computed from this product’s normalized, source-tracked fields — an unstated spec reads as “can’t check”, never as a yes or a no.
Check it against your build →Guides for Projectors
BUYING ADVICEThe best 4K projectors for a bright living roomRead the guide →
TV or projector for your room?Read the guide →
Do you need an ALR screen for a UST projector?Read the guide →