Main trade-off
BenQ TK710STi
Its short throw cannot reuse the nine-foot position at 100 inches.
Head-to-head
BenQ TK710STi vs ViewSonic LX700-4K: Their lens ranges do not overlap for the same screen
The short answer
Choose TK710STi for a short room where a 100-inch picture must start around six feet from the lens, or for its included Android TV adapter. Choose LX700-4K for a farther-back shelf and optical vertical shift. These lens ranges do not overlap for the same picture size, so the mounting distance can settle the choice.
Before you choose
The reasoning and the trade-offs
The two lens ranges leave a gap
For a 100-inch image, a lens at seven feet fits neither optical range. It is too far back for BenQ and too close for ViewSonic. A different mount or image size is needed, rather than assuming that both gaming projectors fit.
What this is based on
100 × 16 / √337 = 87.158 in width. At 84 in distance, throw = 0.964. This falls between BenQ's 0.83 maximum and ViewSonic's 1.06 minimum.
Main trade-off
ViewSonic LX700-4K
It cannot make the six-foot, 100-inch setup optically.
BenQ TK710STi
- Choose it for
- Make a 100-inch picture with the lens about 6 feet away
- Use the included QS02 Android TV streaming adapter
- Main trade-off
- Its short throw cannot reuse the nine-foot position at 100 inches.
ViewSonic LX700-4K
- Choose it for
- Make a 100-inch picture with the lens about 9 feet away
- Use the documented +15% vertical lens shift
- Main trade-off
- It cannot make the six-foot, 100-inch setup optically.
About this comparison
Compare BenQ TK710STi and ViewSonic LX700-4K for short rooms, a 100-inch screen, optical placement and streaming without an extra player.
Choose TK710STi for a short room where a 100-inch picture must start around six feet from the lens, or for its included Android TV adapter. Choose LX700-4K for a farther-back shelf and optical vertical shift. These lens ranges do not overlap for the same picture size, so the mounting distance can settle the choice.
Winner by situation
Start with what you need it to do
I need 100 inches from a lens about 6 feet away
The required 0.826 ratio fits BenQ and is below ViewSonic's minimum.
- BenQ TK710STi
- Good
- ViewSonic LX700-4K
- Not suitable
I need 100 inches from a lens about 9 feet away
The required 1.239 ratio fits ViewSonic and exceeds BenQ's maximum.
- BenQ TK710STi
- Not suitable
- ViewSonic LX700-4K
- Good
The lens must stay 7 feet from a 100-inch screen
The required 0.964 ratio lies in the gap between their ranges.
- BenQ TK710STi
- Not suitable
- ViewSonic LX700-4K
- Not suitable
I want streaming included in the package
BenQ includes QS02. ViewSonic requires an external source.
- BenQ TK710STi
- Better fit
- ViewSonic LX700-4K
- Caution
I need optical vertical adjustment
ViewSonic publishes +15% vertical shift. BenQ's manual instead gives a fixed optical offset.
- BenQ TK710STi
- Caution
- ViewSonic LX700-4K
- Better fit
What matters in practice
The differences that matter
The two lens ranges leave a gap
For a 100-inch image, a lens at seven feet fits neither optical range. It is too far back for BenQ and too close for ViewSonic. A different mount or image size is needed, rather than assuming that both gaming projectors fit.
How we reached this conclusion
100 × 16 / √337 = 87.158 in width. At 84 in distance, throw = 0.964. This falls between BenQ's 0.83 maximum and ViewSonic's 1.06 minimum.
BenQ saves about 2.69 feet at the near end
The minimum lens distance falls from about 7.70 feet to 5.01 feet at 100 inches. That can preserve walking space in a small room, although the projector body and power cable still occupy space behind the lens.
How we reached this conclusion
87.158 × (1.06 - 0.69) / 12 = 2.687 ft. Minimum distances are 7.699 ft for ViewSonic and 5.012 ft for BenQ.
Streaming changes the initial parts list
BenQ's STi package supplies a QS02 Android TV adapter. A ViewSonic installation needs a console, player or separate streaming device, so compare the complete source setup rather than projector-only prices.
How we reached this conclusion
BenQ's US specifications list the included QS02 adapter and Android TV with Netflix. ViewSonic lists HDMI inputs without an integrated streaming operating system.
Try your real numbers
Will either projector fit your room?
The result checks hard limits only. Preferences stay out of the calculation.
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.
ViewSonic LX700-4K
Fits these inputsFor a 120-inch 16:9 picture, the calculated lens range is about 9.24 to 12.64 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, TK710STi
TK710STi
The short-throw TK710 variant brings the same laser brightness and low-latency modes much closer to the screen.
- Best matched use
- Make a 100-inch picture with the lens about 6 feet away
Checked facts
- Optical throw: 0.69 to 0.83:1
- 100-inch 16:9 distance: About 5.01 to 6.03 ft
- Optical vertical shift: Fixed optical offset
- Included streaming: QS02 Android TV adapter
Choice B
ViewSonic, LX700-4K / VS19701
LX700-4K
A compact high-output laser projector tuned for very low-latency 4K60, 1440p120 and 1080p240 gaming.
- Best matched use
- Make a 100-inch picture with the lens about 9 feet away
Checked facts
- Optical throw: 1.06 to 1.45:1
- 100-inch 16:9 distance: About 7.70 to 10.53 ft
- Optical vertical shift: +15% vertical lens shift
- Included streaming: External streaming source required
Meaningful differences
What changes the fit
| What changes | BenQ TK710STi | ViewSonic LX700-4K | Why it matters |
|---|---|---|---|
| Optical throw | 0.69 to 0.83:1 | 1.06 to 1.45:1 | The short-throw BenQ sits substantially closer for the same image. |
| 100-inch 16:9 distance | About 5.01 to 6.03 ft | About 7.70 to 10.53 ft | These ranges use lens-to-screen distance and exclude clearance behind the body. |
| Optical vertical shift | Fixed optical offset | +15% vertical lens shift | ViewSonic offers physical vertical adjustment. Digital keystone is a separate process. |
| Included streaming | QS02 Android TV adapter | External streaming source required | BenQ includes the adapter in this exact STi package. |
| Published brightness | 3,200 ANSI lumens | 3,500 ANSI lumens in the technical table | These are manufacturer ratings, not measured calibrated brightness. |
| Speaker rating | 5 W | 15 W | The larger power rating does not establish better dialogue or sound quality. |
What you give up
Every choice has a cost
If you choose BenQ TK710STi
- There is no documented optical vertical lens shift.
If you choose ViewSonic LX700-4K
- A streaming player is an additional part of the setup.
Recommendation switch
The decision flips if...
The lens is about 6 feet away for 100 inches
Choose BenQ TK710STi. Its short-throw optics cover that position.
The lens is about 9 feet away for 100 inches
Choose ViewSonic LX700-4K. Its 1.06–1.45 range covers that farther-back position.
The lens cannot move from 7 feet for 100 inches
Choose neither. That position falls between the two supported optical ranges.
What matters in practice
How to make the call
Choose the lens before the gaming label
Both are marketed for gaming, yet they solve different rooms. TK710STi is a short-throw model, which is also different from the longer-throw TK710. ViewSonic can suit a conventional shelf farther back. Mark the actual lens position on the room plan before comparing other features.
Leave tolerance around the six-foot example
BenQ's calculated upper distance for a 100-inch image is only a little over six feet. A real installation should avoid depending on an exact optical endpoint. BenQ explicitly recommends checking the projector in the room before making a permanent installation, which is particularly sensible near the limit.
Plan streaming and sound together
The QS02 adapter reduces the number of separate purchases for the BenQ setup. It still needs the prescribed installation and power connection. Neither projector's small internal speaker should be treated as equivalent to a separate sound system based on its watt rating alone. Check the intended audio route before mounting.
What this comparison cannot tell you
- Placement estimates use a 16:9 picture without digital reduction or keystone. They do not include chassis depth or ventilation.
- Manufacturer input-lag and brightness claims are not hands-on measurements. No native 4K120 claim is made.
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.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| BenQ TK710STi |
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| ViewSonic LX700-4K |
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Ready to choose?
Check the price. Read the owner reviews.
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BenQ TK710STi
Make a 100-inch picture with the lens about 6 feet away
See price & reviews on AmazonViewSonic LX700-4K
Make a 100-inch picture with the lens about 9 feet away
See price & reviews on AmazonLinks open in a new tab.