BenQ lists 3,500 ANSI lumens for the TH685P. Epson lists 1,000 lumens of color and white brightness for the EF21. The BenQ lists the higher figure; the Epson is the laser model with a different, 3LCD light engine.
BenQ TH685P vs Epson EF21: Specs Compared (2026)
BenQ TH685P ($979) vs Epson EpiqVision Mini EF21: listed brightness, smart OS and input lag compared. The Epson has no new units on Amazon.com, only used offers.
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Prices change daily on Amazon. Check today's price on the BenQ TH685P before reading the full review.
BenQ TH685P
$979
VS
Epson EpiqVision Mini EF21
Used only, from $809.52
Quick Answer
BenQ TH685P wins overall
The BenQ TH685P is $979 on Amazon.com and lists 3,500 ANSI lumens and 8.3 ms latency at 1080p/120Hz. The Epson EF21 lists a 3LCD laser with 1,000 lumens and Google TV, but on 4 October 2026 Amazon.com showed used offers only, from $809.52, so it has no buy link. This page used to price both at $450. We have not tested either projector.
Specifications
| Feature | BenQ TH685P | Epson EpiqVision Mini EF21 |
|---|---|---|
| Price | $979 | Used only, from $809.52 |
| Availability | In stock | Used offers only |
| Amazon ratings | 82 ratings, 4.1 stars | 141 ratings, 4.2 stars |
| Resolution | 1080p, 4K-supported inputs | 1080p, laser |
| Brightness (listed) | 3,500 ANSI lumens | 1,000 lumens (3LCD color and white) |
| Smart OS | None listed | Google TV |
| Input Lag (listed) | 8.3 ms at 1080p/120Hz (per BenQ) | Not stated in the listing text we read |
Brightness
Winner: Brightness
BenQ TH685P
BenQ lists far more brightness.
Smart OS and Setup
Epson lists Google TV, built-in speakers and EpiqSense auto setup for the EF21. BenQ lists no smart OS for the TH685P, so it needs a streaming device, and a 5W speaker.
Winner: Smart OS and Setup
Epson EpiqVision Mini EF21
Epson, which needs no streaming stick.
Price and Availability
The BenQ is $979 with 82 Amazon ratings at 4.1 stars. The Epson EF21 shows $599.99 on its page, but Amazon.com offered only used units, from $809.52 and $819.79, on 4 October 2026.
Winner: Price and Availability
BenQ TH685P
Only the BenQ can be bought new.
Final Verdict
BenQ TH685P takes it
The BenQ TH685P is the one you can buy new today, at $979, and it lists far more brightness and a lower latency figure. The Epson EF21 lists Google TV and a laser light source, but there are no new units on Amazon.com, so we cannot point you to one. We have not tested either projector.
Frequently Asked Questions
No. The BenQ TH685P was $979 and the Epson EF21 had a $599.99 page price but used offers only, on 4 October 2026. This page used to say $450 for both.
Amazon.com listed only used units, from $809.52, so there was no new unit to link to.