Main trade-off
LG CineBeam S
Its 500 ANSI-lumen output needs controlled light and works best at the smaller end of its range.
Head-to-head
Choose CineBeam S for a small UST picture down to 40 inches. MIRA suits an 80 to 120-inch living-room screen with Google TV.
Before you choose
LG CineBeam S needs 1.8 ft from lens to screen for a 100-inch 16:9 picture. XGIMI MIRA needs 1.3 ft.
What this is based on
Width = diagonal × 16 / √337. At 100 inches the width is 87.2 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 500 ANSI-lumen output needs controlled light and works best at the smaller end of its range.
Main trade-off
Its fixed 80 to 120-inch range is less flexible than larger premium UST models.


Choose CineBeam S for a small UST picture down to 40 inches. MIRA suits an 80 to 120-inch living-room screen with Google TV.
The supported size ranges only partly overlap
Winner by situation
LG covers 40 to 100 inches and MIRA 80 to 120. A 60-inch plan points to LG, while a 110-inch plan points to MIRA.
MIRA supports pictures up to 120 inches, while CineBeam S stops at 100 in the published range. LG cannot meet this larger-screen requirement.
Use 1.8 ft for LG CineBeam S or 1.3 ft for XGIMI MIRA, measured from the lens. Check the cabinet and mounting clearances separately.
The documented platform is webOS on LG CineBeam S and Smart platform on XGIMI MIRA. Check the exact US model and required apps, rather than a similar name or older generation.
What matters in practice
LG CineBeam S needs 1.8 ft from lens to screen for a 100-inch 16:9 picture. XGIMI MIRA needs 1.3 ft.
Width = diagonal × 16 / √337. At 100 inches the width is 87.2 inches. Multiply by each documented throw endpoint and divide by 12 for feet. This excludes digital zoom, keystone, cabinet offset and lens-shift limits.
LG CineBeam S lists 500 ANSI lumens, while XGIMI MIRA uses 2000 ISO. We do not turn different labeled standards into a brightness multiplier.
Exact published inputs are 500 ANSI for LG CineBeam S and 2000 ISO for XGIMI MIRA. A percentage is shown only within the same labeled standard. Manufacturer methods, calibration and picture modes can still differ.
CineBeam S and MIRA overlap only from 80 to 100 inches. Outside that band, one model falls outside its published image-size range.
Intersection of LG 40 to 100 inches and MIRA 80 to 120 inches is 80 to 100. This checks published optical use limits, not subjective picture quality.
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 position is about 2.18 ft. Your input is 9.50 ft. This model's documented picture-size range is 40 to 100 inches.
For a 120-inch 16:9 picture, the calculated lens position is about 1.53 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.
For an ultra-short-throw model, the gap behind the cabinet is a different measurement. Check the installation diagram for cabinet position, screen height and ventilation.

LG, PU615U
A tiny 4K triple-laser UST that turns shallow furniture into an 80 to 100-inch smart display with webOS.

XGIMI, MIRA
A compact premium UST with 4K triple-laser color, Dolby Vision and a strong Harman Kardon audio system for an 80 to 120-inch setup.
Meaningful differences
| What changes | LG CineBeam S | XGIMI MIRA | Why it matters |
|---|---|---|---|
| Optical throw ratio | 0.25 to 0.25 | 0.175 to 0.175 | Distance is measured from the lens to the screen, using the image width. |
| Lens distance for 100 inches | 1.8 ft | 1.3 ft | Calculated for 16:9 with optical adjustment only. Cabinet depth and cable clearance are extra. |
| Published image-size range | 40 to 100 in | 80 to 120 in | A supported maximum does not guarantee a bright picture in your room. |
| Published light output | 500 ANSI lumens | 2000 ISO 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 | webOS | Smart platform | Confirm the exact US edition and the apps you need before adding a separate streamer. |
What you give up
What matters in practice
LG covers 40 to 100 inches and MIRA 80 to 120. A 60-inch plan points to LG, while a 110-inch plan points to MIRA.
MIRA has the shorter 0.175 throw, but its minimum stated screen is larger. Use both the throw ratio and supported image range when checking a room.
Both need precise cabinet height and a flat image surface. Confirm the exact installation measurements before assuming either replaces a television without furniture changes.
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 |
|---|---|---|---|
| LG CineBeam S |
|
| |
| XGIMI MIRA | No positive match recorded for these needs |
|
Ready to choose?
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The intended picture is smaller than 80 inches
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The screen needs to exceed 100 inches
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