Main trade-off
Optoma UHD35STx
The 0.5 throw lens is fixed, so mount position must be calculated before buying.
Head-to-head
Optoma UHD35STx vs BenQ TK710STi: Optoma fits closer, BenQ adds optical zoom
The short answer
Choose UHD35STx for the shortest fixed position in this pair. TK710STi suits a laser installation that needs optical zoom and included streaming.
Before you choose
The reasoning and the trade-offs
Fit a 120-inch picture before choosing
Optoma UHD35STx needs 4.4 ft from lens to screen for a 120-inch 16:9 picture. BenQ TK710STi needs 6 to 7.2 ft.
What this is based on
Width = diagonal × 16 / √337. At 120 inches the width is 104.6 inches. Multiply by each documented throw endpoint and divide by 12 for feet. This excludes digital zoom, keystone, cabinet offset and lens-shift limits.
Main trade-off
BenQ TK710STi
It has no optical lens shift, so the short throw still needs a centered shelf or mount.
Optoma UHD35STx
- Choose it for
- The projector must sit very close
- A fixed 0.5 throw fits the layout
- Main trade-off
- The 0.5 throw lens is fixed, so mount position must be calculated before buying.
BenQ TK710STi
- Choose it for
- The mount needs an optical adjustment window
- Avoid routine lamp replacement
- Main trade-off
- It has no optical lens shift, so the short throw still needs a centered shelf or mount.
About this comparison
Choose UHD35STx for the shortest fixed position in this pair. TK710STi suits a laser installation that needs optical zoom and included streaming.
A closer throw can be a hard constraint
Winner by situation
Start with what you need it to do
The projector must sit very close
Optoma uses fixed 0.5 throw against BenQ 0.69 to 0.83. A 120-inch picture requires about 4.4 feet from Optoma versus six to seven feet from BenQ.
- Optoma UHD35STx
- Better fit
- BenQ TK710STi
- Depends
The mount needs an optical adjustment window
TK710STi has an optical throw range from 0.69 to 0.83. UHD35STx is fixed at 0.5, so it needs the correct mounting distance rather than an optical zoom adjustment.
- Optoma UHD35STx
- Not suitable
- BenQ TK710STi
- Better fit
I have chosen a 120-inch 16:9 screen
Use 4.4 ft for Optoma UHD35STx or 6 to 7.2 ft for BenQ TK710STi, measured from the lens. Check the cabinet and mounting clearances separately.
- Optoma UHD35STx
- Depends
- BenQ TK710STi
- Depends
I want to stream without buying the wrong edition
The documented platform is None on Optoma UHD35STx and Included Android TV device on BenQ TK710STi. Check the exact US model and required apps, rather than a similar name or older generation.
- Optoma UHD35STx
- Depends
- BenQ TK710STi
- Depends
What matters in practice
The differences that matter
Fit a 120-inch picture before choosing
Optoma UHD35STx needs 4.4 ft from lens to screen for a 120-inch 16:9 picture. BenQ TK710STi needs 6 to 7.2 ft.
How we reached this conclusion
Width = diagonal × 16 / √337. At 120 inches the width is 104.6 inches. Multiply by each documented throw endpoint and divide by 12 for feet. This excludes digital zoom, keystone, cabinet offset and lens-shift limits.
Read the light ratings with their limits
Optoma UHD35STx lists 3600 published lumens, while BenQ TK710STi uses 3200 ANSI. We do not turn different labeled standards into a brightness multiplier.
How we reached this conclusion
Exact published inputs are 3600 published for Optoma UHD35STx and 3200 ANSI for BenQ TK710STi. A percentage is shown only within the same labeled standard. Manufacturer methods, calibration and picture modes can still differ.
The shortest throw and the more adjustable lens are different choices
UHD35STx can sit about 28% closer than TK710STi at its nearest setting, but TK710STi supplies optical zoom and a laser light source.
How we reached this conclusion
1 - 0.5 / 0.69 = 27.5%. Optoma is fixed 0.5 and lamp-based. BenQ is 0.69 to 0.83 and laser-based.
Try your real numbers
Will either projector fit your room?
The result checks hard limits only. Preferences stay out of the calculation.
Optoma UHD35STx
Does not fit these inputsFor a 120-inch 16:9 picture, the calculated lens position is about 4.36 ft. Your input is 9.50 ft.
BenQ TK710STi
Does not fit these inputsFor a 120-inch 16:9 picture, the calculated lens range is about 6.01 to 7.23 ft. Your input is 9.50 ft.
Distance is measured from the lens to the screen. The calculation uses a 16:9 image and the verified optical throw range for each exact model.
Choice A
Optoma, UHD35STx
UHD35STx
A fixed short-throw 4K lamp projector with low-latency modes for compact gaming rooms and golf simulator bays.
- Best matched use
- Short-throw 4K gaming and simulators
Checked facts
- 3,600-lumen lamp-based 4K DLP light engine
- Fixed 0.5:1 short-throw lens
- Specified 16.9 ms at 4K60 and 4.2 ms at 1080p240
Choice B
BenQ, TK710STi
TK710STi
The short-throw TK710 variant brings the same laser brightness and low-latency modes much closer to the screen.
- Best matched use
- Short-throw console and PC gaming
Checked facts
- 3,200 ANSI-lumen laser 4K DLP light engine
- 0.69–0.83:1 throw ratio with 1.2x optical zoom
- 16.7 ms at 4K60 and 4.2 ms at 1080p240 with included Android TV
Meaningful differences
What changes the fit
| What changes | Optoma UHD35STx | BenQ TK710STi | Why it matters |
|---|---|---|---|
| Optical throw ratio | 0.5 to 0.5 | 0.69 to 0.83 | Distance is measured from the lens to the screen, using the image width. |
| Lens distance for 120 inches | 4.4 ft | 6 to 7.2 ft | Calculated for 16:9 with optical adjustment only. Cabinet depth and cable clearance are extra. |
| Published image-size range | 36.43 to 300.53 in | 30 to 300 in | A supported maximum does not guarantee a bright picture in your room. |
| Published light output | 3600 published lumens | 3200 ANSI lumens | Different measurement standards and picture modes are not interchangeable. |
| Display architecture | single-chip-dlp | single-chip-dlp | Single-chip sequential color can matter to viewers sensitive to rainbow flashes. |
| Streaming platform | None | Included Android TV device | Confirm the exact US edition and the apps you need before adding a separate streamer. |
What you give up
Every choice has a cost
If you choose Optoma UHD35STx
- It uses a replaceable lamp and has no smart streaming platform.
If you choose BenQ TK710STi
- Its Rec.709-focused color is less expansive than RGB-laser and cinema-first wide-gamut models.
What matters in practice
How to make the call
A closer throw can be a hard constraint
Optoma uses fixed 0.5 throw against BenQ 0.69 to 0.83. A 120-inch picture requires about 4.4 feet from Optoma versus six to seven feet from BenQ.
Lamp and laser change the maintenance plan
UHD35STx is lamp-based. TK710STi uses a laser and includes an Android TV device, which changes the complete purchase for frequent movie use.
The optical zoom window belongs to BenQ
A fixed lens makes table location critical. BenQ can vary image size optically within its range, while Optoma requires moving the unit or using digital adjustment.
What this comparison cannot tell you
- Throw calculations use published optical ranges and a 16:9 picture. They are not a substitute for the exact installation diagram.
- Published lumens, contrast and latency do not establish a matched real-room picture-quality result.
What the facts say
What the comparison shows
Useful conclusions from the current home projectors comparison, followed by the checked facts used to reach them.
Compared set
Only 1 of 90 models checked match every need here: “We have family movie nights in the living room”, “My shelf or ceiling mount position is fixed”, and “I want Netflix ready on day one”.
1 matching model from 90 checkedSee the checked facts and calculation notes
Match countThe count uses the current product-to-need assignments for “We have family movie nights in the living room”, “My shelf or ceiling mount position is fixed”, and “I want Netflix ready on day one”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Optoma UHD35STx | No positive match recorded for these needs |
| |
| BenQ TK710STi |
|
|
Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Optoma UHD35STx
The projector must sit very close
See price & reviews on AmazonBenQ TK710STi
The mount needs an optical adjustment window
See price & reviews on AmazonLinks open in a new tab.