Main trade-off
BenQ X3100i
Its tall 15-pound chassis is much bulkier than most lifestyle models.
Head-to-head
BenQ X3100i vs TK710STi: TK710STi makes the large picture fit a shorter room
The short answer
Choose TK710STi when the screen must be large in a short room. X3100i suits a longer throw with its 4LED light engine and gaming setup.
Before you choose
The reasoning and the trade-offs
Fit a 120-inch picture before choosing
BenQ X3100i needs 10 to 13.1 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.
BenQ X3100i
- Choose it for
- The mounting point is farther from the screen
- A 4LED gaming projector suits the room
- Main trade-off
- Its tall 15-pound chassis is much bulkier than most lifestyle models.
BenQ TK710STi
- Choose it for
- The room cannot provide ten feet of throw
- A closer mount helps a simulator layout
- Main trade-off
- It has no optical lens shift, so the short throw still needs a centered shelf or mount.
About this comparison
Choose TK710STi when the screen must be large in a short room. X3100i suits a longer throw with its 4LED light engine and gaming setup.
The distance ranges solve different rooms
Winner by situation
Start with what you need it to do
The mounting point is farther from the screen
X3100i covers 1.15 to 1.5 throw, while TK710STi covers 0.69 to 0.83. For a 120-inch picture, X3100i belongs about ten to thirteen feet back rather than six to seven.
- BenQ X3100i
- Better fit
- BenQ TK710STi
- Depends
A 120-inch picture must fit within ten feet
TK710STi needs about six to seven feet for a 120-inch 16:9 picture. X3100i starts around ten feet, so it cannot meet the stated shorter distance. Allow room for the chassis and installation clearance.
- BenQ X3100i
- Not suitable
- BenQ TK710STi
- Better fit
I have chosen a 120-inch 16:9 screen
Use 10 to 13.1 ft for BenQ X3100i or 6 to 7.2 ft for BenQ TK710STi, measured from the lens. Check the cabinet and mounting clearances separately.
- BenQ X3100i
- Depends
- BenQ TK710STi
- Depends
I want to stream without buying the wrong edition
The documented platform is Included Android TV device on BenQ X3100i and Included Android TV device on BenQ TK710STi. Check the exact US model and required apps, rather than a similar name or older generation.
- BenQ X3100i
- Depends
- BenQ TK710STi
- Depends
What matters in practice
The differences that matter
Fit a 120-inch picture before choosing
BenQ X3100i needs 10 to 13.1 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
BenQ X3100i lists 3300 ANSI lumens and BenQ TK710STi 3200. The higher headline is about 3% above the lower one. These are manufacturer ratings, not matched measurements.
How we reached this conclusion
Exact published inputs are 3300 ANSI for BenQ X3100i 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.
A mount suitable for one may be unusable for the other
At a 120-inch 16:9 picture, X3100i starts around 10.0 feet while TK710STi tops out around 7.2 feet. Their optical distance windows do not overlap.
How we reached this conclusion
120 × 16 / √337 = 104.59 inches wide. X3100i minimum: 104.59 × 1.15 / 12 = 10.02 ft. TK710STi maximum: 104.59 × 0.83 / 12 = 7.23 ft.
Try your real numbers
Will either projector fit your room?
The result checks hard limits only. Preferences stay out of the calculation.
BenQ X3100i
Does not fit these inputsFor a 120-inch 16:9 picture, the calculated lens range is about 10.02 to 13.07 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
BenQ, X3100i
X3100i
A color-rich 4LED gaming projector with low latency, broad resolution support, Android TV and a substantial vertical shift range.
- Best matched use
- Gaming without giving up color
Checked facts
- 3,300 ANSI-lumen 4LED light source with 100% DCI-P3 claim
- 16.7 ms at 4K60, 8.3 ms at 1080p120 and 4.2 ms at 1080p240
- 1.3x optical zoom, vertical lens shift and included Android TV dongle
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 | BenQ X3100i | BenQ TK710STi | Why it matters |
|---|---|---|---|
| Optical throw ratio | 1.15 to 1.5 | 0.69 to 0.83 | Distance is measured from the lens to the screen, using the image width. |
| Lens distance for 120 inches | 10 to 13.1 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 | 30 to 300 in | 30 to 300 in | A supported maximum does not guarantee a bright picture in your room. |
| Published light output | 3300 ANSI 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 | Included Android TV device | 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 BenQ X3100i
- Independent testing found weaker dark-scene contrast and noted that 1440p input is internally downscaled.
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
The distance ranges solve different rooms
TK710STi covers 0.69 to 0.83 throw against 1.15 to 1.5. For a 120-inch image, the short-throw unit needs about six to seven feet rather than ten to thirteen.
Do not buy short throw without checking the swing path
A simulator needs the beam and chassis clear of the golfer, clubs and impact screen. Throw geometry screens candidates, but does not establish physical safety by itself.
Both include a streaming route
Both reviewed packages include an Android TV device. The bigger daily split is mounting geometry and the laser versus 4LED light source, not whether an external streamer can be added.
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 |
|---|---|---|---|
| BenQ X3100i |
|
| |
| 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.
BenQ X3100i
The mounting point is farther from the screen
See price & reviews on AmazonBenQ TK710STi
The room cannot provide ten feet of throw
See price & reviews on AmazonLinks open in a new tab.