Main trade-off
BenQ X3100i
Its tall 15-pound chassis is much bulkier than most lifestyle models.
Head-to-head
Choose X3100i for its 4LED gaming design and included streaming device. LX700-4K suits a closer laser installation with your own HDMI sources.
Before you choose
BenQ X3100i needs 10 to 13.1 ft from lens to screen for a 120-inch 16:9 picture. ViewSonic LX700-4K needs 9.2 to 12.6 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
Its tall 15-pound chassis is much bulkier than most lifestyle models.
Main trade-off
ProjectorCentral found inaccurate out-of-box color and gamma, so movie-first buyers may prefer a cinema model.


Choose X3100i for its 4LED gaming design and included streaming device. LX700-4K suits a closer laser installation with your own HDMI sources.
The closer position favors ViewSonic
Winner by situation
X3100i includes a licensed Android TV device. LX700-4K needs an external streamer, with its own power and cable arrangement.
LX700-4K starts at 1.06 throw against 1.15 for X3100i. It saves about nine inches of minimum lens distance at a 120-inch picture.
Use 10 to 13.1 ft for BenQ X3100i or 9.2 to 12.6 ft for ViewSonic LX700-4K, measured from the lens. Check the cabinet and mounting clearances separately.
The documented platform is Included Android TV device on BenQ X3100i and None on ViewSonic LX700-4K. Check the exact US model and required apps, rather than a similar name or older generation.
What matters in practice
BenQ X3100i needs 10 to 13.1 ft from lens to screen for a 120-inch 16:9 picture. ViewSonic LX700-4K needs 9.2 to 12.6 ft.
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.
BenQ X3100i lists 3300 ANSI lumens and ViewSonic LX700-4K 3500. The higher headline is about 6% above the lower one. These are manufacturer ratings, not matched measurements.
Exact published inputs are 3300 ANSI for BenQ X3100i and 3500 ANSI for ViewSonic LX700-4K. A percentage is shown only within the same labeled standard. Manufacturer methods, calibration and picture modes can still differ.
LX700-4K lists only about 6% more ANSI output than X3100i, while X3100i includes the streaming device that ViewSonic leaves to the buyer.
(3500 / 3300 - 1) × 100 = 6.1%. The X3100i package includes Android TV. LX700-4K has no built-in streaming platform.
Try your real numbers
The result checks hard limits only. Preferences stay out of the calculation.
For a 120-inch 16:9 picture, the calculated lens range is about 10.02 to 13.07 ft. Your input is 9.50 ft.
For 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.

BenQ, X3100i
A color-rich 4LED gaming projector with low latency, broad resolution support, Android TV and a substantial vertical shift range.

ViewSonic, LX700-4K / VS19701
A compact high-output laser projector tuned for very low-latency 4K60, 1440p120 and 1080p240 gaming.
Meaningful differences
| What changes | BenQ X3100i | ViewSonic LX700-4K | Why it matters |
|---|---|---|---|
| Optical throw ratio | 1.15 to 1.5 | 1.06 to 1.45 | Distance is measured from the lens to the screen, using the image width. |
| Lens distance for 120 inches | 10 to 13.1 ft | 9.2 to 12.6 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 | 3500 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 | None | Confirm the exact US edition and the apps you need before adding a separate streamer. |
What you give up
What matters in practice
LX700-4K begins at 1.06 throw against 1.15 for X3100i. The difference saves about nine inches at a 120-inch picture, which can matter at the edge of a room.
X3100i includes a licensed Android TV device. LX700-4K requires an external streamer, which is a small detail until there is no spare outlet or cable route.
The published ANSI figures are 3,300 and 3,500, only about six percent apart. Without matched picture-mode tests, light-source preference and fit are more useful than declaring a visible brightness winner.
What the facts say
Useful conclusions from the current home projectors comparison, followed by the checked facts used to reach them.
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 checkedMatch 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 |
|
| |
| ViewSonic LX700-4K |
|
|
Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

An included streaming device is useful
See price & reviews on Amazon
The projector needs a closer position
See price & reviews on AmazonLinks open in a new tab.