Main trade-off
BenQ TK710
Its color coverage tops out around Rec.709 rather than the wider cinema gamuts of premium RGB-laser models.
Head-to-head
Choose TK710 for a laser light source and vertical lens shift. PX749-4K suits a lamp-based gaming setup with a closely similar throw range.
Before you choose
BenQ TK710 needs 10 to 13.1 ft from lens to screen for a 120-inch 16:9 picture. ViewSonic PX749-4K needs 9.8 to 12.8 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 color coverage tops out around Rec.709 rather than the wider cinema gamuts of premium RGB-laser models.
Main trade-off
It uses a replaceable lamp instead of a solid-state light source.


Choose TK710 for a laser light source and vertical lens shift. PX749-4K suits a lamp-based gaming setup with a closely similar throw range.
The room-fit difference is small
Winner by situation
TK710 uses a laser light source and PX749-4K uses a replaceable lamp. Frequent use gives the lamp-maintenance difference more weight than their largely overlapping throw ranges.
TK710 uses a laser and PX749 a lamp. The maintenance choice can outweigh a brightness headline for a projector used several evenings a week.
Use 10 to 13.1 ft for BenQ TK710 or 9.8 to 12.8 ft for ViewSonic PX749-4K, measured from the lens. Check the cabinet and mounting clearances separately.
The documented platform is None on BenQ TK710 and None on ViewSonic PX749-4K. Check the exact US model and required apps, rather than a similar name or older generation.
What matters in practice
BenQ TK710 needs 10 to 13.1 ft from lens to screen for a 120-inch 16:9 picture. ViewSonic PX749-4K needs 9.8 to 12.8 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 TK710 lists 3200 ANSI lumens and ViewSonic PX749-4K 4000. The higher headline is about 25% above the lower one. These are manufacturer ratings, not matched measurements.
Exact published inputs are 3200 ANSI for BenQ TK710 and 4000 ANSI for ViewSonic PX749-4K. A percentage is shown only within the same labeled standard. Manufacturer methods, calibration and picture modes can still differ.
TK710 and PX749-4K have closely overlapping throw ranges, but only TK710 uses a laser light source and offers vertical lens shift in this pair.
BenQ documents laser, +10% vertical shift and 1.15 to 1.5 throw. ViewSonic PX749-4K is lamp-based with 1.13 to 1.47 throw.
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 9.85 to 12.81 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, TK710
A bright laser DLP focused on fast console and PC play, with vertical lens shift and a compact standard-throw chassis.

ViewSonic, PX749-4K
A bright lamp-based 4K projector with optical zoom and fast Xbox, console and PC gaming modes.
Meaningful differences
| What changes | BenQ TK710 | ViewSonic PX749-4K | Why it matters |
|---|---|---|---|
| Optical throw ratio | 1.15 to 1.5 | 1.13 to 1.47 | Distance is measured from the lens to the screen, using the image width. |
| Lens distance for 120 inches | 10 to 13.1 ft | 9.8 to 12.8 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 | 3200 ANSI lumens | 4000 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 | None | Confirm the exact US edition and the apps you need before adding a separate streamer. |
What you give up
What matters in practice
Throw ranges are 1.15 to 1.5 for BenQ and 1.13 to 1.47 for ViewSonic. Most ordinary positions inside the overlap should not force the decision.
TK710 uses a laser and PX749 a lamp. The maintenance choice can outweigh a brightness headline for a projector used several evenings a week.
ViewSonic documents 1440p120 support. BenQ lists 2K120 downscaled to 1080p, so confirm which output mode is important before treating both as equivalent gaming choices.
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 checkedViewSonic PX749-4K lists 4,000 ANSI lm for published ANSI brightness, 25% above BenQ TK710 at 3,200 ANSI lm.
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.
Calculation noteOnly ANSI-lumen figures are included. ISO and unqualified manufacturer lumen labels are excluded. 36 of 90 models have comparable published figures for context.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| BenQ TK710 |
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| |
| ViewSonic PX749-4K |
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