The catch
BenQ TK710STi
The nine-foot position at 100 inches is not one its short throw can reuse.
Side by side
BenQ TK710STi vs ViewSonic LX700-4K: For the same screen, their lens ranges do not overlap
Quick verdict
The TK710STi suits a short room, where a 100-inch picture has to start about six feet from the lens, and it also comes with an Android TV adapter. The LX700-4K is for a shelf farther back, and it adds optical vertical shift. Their lens ranges do not overlap for the same picture size, so how far away you can mount may decide it.
Before you buy
Why, and what it costs you
A gap sits between the two lens ranges
A lens at seven feet fits neither optical range for a 100-inch image. It is too far back for BenQ and too close for ViewSonic. You need a different mount or image size, and should not assume both gaming projectors fit.
Where this comes from
100 × 16 / √337 = 87.158 in of width. At a distance of 84 in, throw = 0.964, which falls between BenQ's 0.83 maximum and ViewSonic's 1.06 minimum.
The catch
ViewSonic LX700-4K
The six-foot, 100-inch setup is not something it can produce optically.
BenQ TK710STi
- Why pick it
- Your lens sits about 6 feet away and the picture should be 100 inches
- You want the included QS02 Android TV streaming adapter
- The catch
- The nine-foot position at 100 inches is not one its short throw can reuse.
ViewSonic LX700-4K
- Why pick it
- Your lens is about 9 feet away from a 100-inch picture
- You plan to use the documented +15% vertical lens shift
- The catch
- The six-foot, 100-inch setup is not something it can produce optically.
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What this page compares
Short rooms, a 100-inch screen, optical placement and streaming with no extra player: here is how the BenQ TK710STi and ViewSonic LX700-4K compare.
The TK710STi suits a short room, where a 100-inch picture has to start about six feet from the lens, and it also comes with an Android TV adapter. The LX700-4K is for a shelf farther back, and it adds optical vertical shift. Their lens ranges do not overlap for the same picture size, so how far away you can mount may decide it.
Which one fits
Pick the situations that sound like you
With the lens about 6 feet away, I need 100 inches
BenQ fits the required 0.826 ratio, which is under ViewSonic's minimum.
- BenQ TK710STi
- Good
- ViewSonic LX700-4K
- Not suitable
The lens is about 9 feet away and I need 100 inches
ViewSonic fits the required 1.239 ratio, which is beyond BenQ's maximum.
- BenQ TK710STi
- Not suitable
- ViewSonic LX700-4K
- Good
The lens has to remain 7 feet from a 100-inch screen
Between their two ranges is a gap, and the required 0.964 ratio sits in it.
- BenQ TK710STi
- Not suitable
- ViewSonic LX700-4K
- Not suitable
I want streaming to come with the package
QS02 comes with BenQ. ViewSonic needs an external source.
- BenQ TK710STi
- Better fit
- ViewSonic LX700-4K
- Caution
I need vertical adjustment by optical means
A +15% vertical shift is what ViewSonic publishes. BenQ's manual gives a fixed optical offset instead.
- BenQ TK710STi
- Caution
- ViewSonic LX700-4K
- Better fit
In practice
Differences you will notice
A gap sits between the two lens ranges
A lens at seven feet fits neither optical range for a 100-inch image. It is too far back for BenQ and too close for ViewSonic. You need a different mount or image size, and should not assume both gaming projectors fit.
How we worked this out
100 × 16 / √337 = 87.158 in of width. At a distance of 84 in, throw = 0.964, which falls between BenQ's 0.83 maximum and ViewSonic's 1.06 minimum.
BenQ can sit about 2.69 feet closer at the near end
At 100 inches, the minimum lens distance drops from about 7.70 feet to 5.01 feet. In a small room that can keep walking space free, though the projector body and power cable still take up room behind the lens.
How we worked this out
87.158 × (1.06 - 0.69) / 12 = 2.687 ft. The minimum distance is 7.699 ft for ViewSonic and 5.012 ft for BenQ.
Streaming reshapes the parts list at the start
A QS02 Android TV adapter comes in BenQ's STi package. With a ViewSonic you need a console, player or separate streaming device, so compare the complete source setup and not just projector-only prices.
How we worked this out
The US specifications for BenQ list the included QS02 adapter and Android TV with Netflix. For ViewSonic they list HDMI inputs and no integrated streaming operating system.
Plug in your numbers
Will either projector work in your room?
This checks hard limits only. Personal preferences are left out of the math.
BenQ TK710STi
Does not work with your numbersFor a 120-inch 16:9 picture, the calculated lens range is about 6.01 to 7.23 ft. You entered 9.50 ft.
ViewSonic LX700-4K
Works with your numbersFor a 120-inch 16:9 picture, the calculated lens range is about 9.24 to 12.64 ft. You entered 9.50 ft.
Measure distance from the lens to the screen. The math assumes a 16:9 picture and uses the verified throw range for each exact model.
Option A
BenQ, TK710STi
TK710STi
This short-throw variant of the TK710 offers the same laser brightness and low-latency modes from a spot much nearer the screen.
- Best for
- Your lens sits about 6 feet away and the picture should be 100 inches
Facts we checked
- 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
Option B
ViewSonic, LX700-4K / VS19701
LX700-4K
Tuned for very low-latency gaming at 4K60, 1440p120 and 1080p240, this laser projector is compact and high-output.
- Best for
- Your lens is about 9 feet away from a 100-inch picture
Facts we checked
- 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
Spec by spec
Where they really differ
| Spec | BenQ TK710STi | ViewSonic LX700-4K | In practice |
|---|---|---|---|
| Optical throw | 0.69 to 0.83:1 | 1.06 to 1.45:1 | For the same image, the short-throw BenQ can sit much closer. |
| 100-inch 16:9 distance | About 5.01 to 6.03 ft | About 7.70 to 10.53 ft | The ranges are lens-to-screen distances and leave out clearance behind the body. |
| Optical vertical shift | Fixed optical offset | +15% vertical lens shift | Physical vertical adjustment is what ViewSonic offers. Digital keystone is a different process. |
| Included streaming | QS02 Android TV adapter | External streaming source required | This exact STi package from BenQ includes the adapter. |
| Published brightness | 3,200 ANSI lumens | 3,500 ANSI lumens in the technical table | Manufacturers supply these ratings, and they are not measured, calibrated brightness. |
| Speaker rating | 5 W | 15 W | A bigger power rating does not show better dialogue or sound quality. |
Trade-offs
What each pick costs you
With BenQ TK710STi
- No optical vertical lens shift is documented.
With ViewSonic LX700-4K
- The setup needs a streaming player as an additional part.
Change of plan
When the answer changes
For 100 inches, the lens sits about 6 feet away
Go with BenQ TK710STi. That position is covered by its short-throw optics.
For 100 inches, the lens sits about 9 feet back
Go with ViewSonic LX700-4K. That position farther back is within its 1.06–1.45 range.
For 100 inches, the lens has to stay at 7 feet
Neither model fits. The two supported optical ranges leave that position in between them.
Decision guide
How to decide
Take the TK710STi if the room is short and a 100-inch picture must begin around six feet from the lens, or if you want the included Android TV adapter. Take the LX700-4K for a farther-back shelf and optical vertical shift. Since the lens ranges do not overlap at the same picture size, mounting distance can be the deciding factor.
Pick the lens before the gaming label
Gaming is part of the marketing for both, but they suit different rooms. The TK710STi is a short-throw model, and so differs from the longer-throw TK710. The ViewSonic can work on a conventional shelf farther back. Before comparing anything else, mark the real lens position on your room plan.
Allow some margin around the six-foot example
For a 100-inch image, BenQ's calculated upper distance is a little over six feet. Do not build a real installation on an exact end of the optical range. BenQ itself recommends trying the projector in the room before installing it permanently, and that advice matters most close to the limit.
Think about streaming and sound at once
With the QS02 adapter, the BenQ setup needs fewer separate purchases, though the adapter still has to be installed and powered as prescribed. As for sound, a watt rating on a small internal speaker does not make it equal to a separate sound system, on either projector. Decide on the audio route before you mount anything.
What this page can’t tell you
- Placement estimates assume a 16:9 picture with no digital reduction or keystone, and they leave out chassis depth and ventilation.
- Input-lag and brightness figures from the manufacturers were not measured hands-on. We make no claim of native 4K120.
By the numbers
What the data shows
What we found across the home projectors we compare, plus the checked facts behind each finding.
Show the facts and the math
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| BenQ TK710STi |
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| ViewSonic LX700-4K |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
BenQ TK710STi
Your lens sits about 6 feet away and the picture should be 100 inches
See price & reviews on AmazonViewSonic LX700-4K
Your lens is about 9 feet away from a 100-inch picture
See price & reviews on AmazonEach link opens in a new tab.
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