The catch
JMGO O2S Ultra
Cabinet height and physical alignment still have to be exact because the UST lens is fixed.
Side by side
For a shorter lens-to-screen distance on a media unit, choose the O2S Ultra. The PX4 Pro fits plans above 150 inches, within its stated image range.
Before you buy
To project a 120-inch 16:9 picture, the JMGO O2S Ultra needs the lens 1.4 ft from the screen and the Hisense PX4 Pro needs 1.7 ft.
Where this comes from
Width = diagonal × 16 / √337, which is 104.6 inches at 120 inches. Times each documented throw endpoint, divided by 12, that gives feet. Digital zoom, keystone, cabinet offset and lens-shift limits are not included.
The catch
Cabinet height and physical alignment still have to be exact because the UST lens is fixed.
The catch
Careful cabinet and screen geometry is still required with the fixed 0.2:1 lens.


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O2S Ultra gives a shorter lens-to-screen distance on a media unit, and PX4 Pro suits plans above 150 inches within its stated image range.
Measure UST geometry from the lens
Which one fits
JMGO has a 0.16 throw and Hisense 0.2. At a 120-inch picture that is a difference of about 4.2 inches, though the cabinet-to-wall gap also depends on where the lens sits in each chassis.
Up to 150 inches is listed for the JMGO and up to 200 for the PX4 Pro. Confirm screen and mounting dimensions before you commit to a larger future picture.
Allow 1.4 ft for the JMGO O2S Ultra or 1.7 ft for the Hisense PX4 Pro, with the distance taken from the lens. Cabinet and mounting clearances need a separate check.
Google TV is the documented platform for the JMGO O2S Ultra, and VIDAA for the Hisense PX4 Pro. Confirm the exact US model and the apps you need, and do not rely on a similar name or older generation.
In practice
To project a 120-inch 16:9 picture, the JMGO O2S Ultra needs the lens 1.4 ft from the screen and the Hisense PX4 Pro needs 1.7 ft.
Width = diagonal × 16 / √337, which is 104.6 inches at 120 inches. Times each documented throw endpoint, divided by 12, that gives feet. Digital zoom, keystone, cabinet offset and lens-shift limits are not included.
The JMGO O2S Ultra is listed at 3600 ISO lumens and the Hisense PX4 Pro at 3500 ANSI. Since these labeled standards differ, we do not convert them into a brightness multiplier.
The inputs, as published, are 3600 ISO for JMGO O2S Ultra and 3500 ANSI for Hisense PX4 Pro. Percentages are calculated only within the same labeled standard. Manufacturer methods, calibration and picture modes can still differ.
At equal image width, the O2S Ultra cuts lens distance by 20%, whereas the PX4 Pro stretches the stated maximum from 150 to 200 inches.
1 - 0.16 / 0.2 = 20%. The published diagonal maxima are 150 and 200 inches. Do not mistake the cabinet-to-wall gap for the lens distance.
Plug in your numbers
This checks hard limits only. Personal preferences are left out of the math.
For a 120-inch 16:9 picture, the calculated lens position is about 1.39 ft. You entered 9.50 ft.
For a 120-inch 16:9 picture, the calculated lens position is about 1.74 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.
With an ultra-short-throw model, the gap behind the cabinet is a separate measurement. Check the installation diagram for cabinet position, screen height and ventilation.

JMGO, O2S Ultra
Only a few inches of wall clearance is enough for a 100-inch image from this compact, high-output UST, which also includes licensed Google TV.

Hisense, PX4 Pro
On a bright triple-laser platform, Hisense's 2026 premium UST adds an adjustable iris, a bigger 200-inch ceiling and fast gaming.
Spec by spec
| Spec | JMGO O2S Ultra | Hisense PX4 Pro | In practice |
|---|---|---|---|
| Optical throw ratio | 0.16 to 0.16 | 0.2 to 0.2 | Distance runs from the lens to the screen and is calculated from the image width. |
| Lens distance for 120 inches | 1.4 ft | 1.7 ft | The calculation assumes 16:9 and optical adjustment alone. Cabinet depth and cable clearance come on top. |
| Published image-size range | 80 to 150 in | 80 to 200 in | A supported maximum is no guarantee of a bright picture in your room. |
| Published light output | 3600 ISO lumens | 3500 ANSI lumens | You cannot swap one measurement standard or picture mode for another. |
| Display architecture | single-chip-dlp | single-chip-dlp | Viewers who are sensitive to rainbow flashes may care about single-chip sequential color. |
| Streaming platform | Google TV | VIDAA | Before you add a separate streamer, confirm the exact US edition and the apps you need. |
Trade-offs
Decision guide
A shorter lens-to-screen distance on a media unit points to the O2S Ultra. For plans above 150 inches within its stated image range, PX4 Pro is the fit.
JMGO has a 0.16 throw and Hisense 0.2. At a 120-inch picture that is a difference of about 4.2 inches, though the cabinet-to-wall gap also depends on where the lens sits in each chassis.
Up to 150 inches is listed for the JMGO and up to 200 for the PX4 Pro. Confirm screen and mounting dimensions before you commit to a larger future picture.
These are both ultra-short-throw models. Alignment depends on wall flatness, the screen type and the projector height, so a short distance alone doesn't make either a drop-in TV replacement.
By the numbers
What we found across the home projectors we compare, plus the checked facts behind each finding.
Only 1 of the 90 models checked meet every need here: “Family movie nights happen in our living room”, “I cannot move the position of my shelf or ceiling mount”, and “I want Netflix working from day one”.
1 model fits, out of 90 checkedHow we countedThe count uses each product's current fit ratings for “Family movie nights happen in our living room”, “I cannot move the position of my shelf or ceiling mount”, and “I want Netflix working from day one”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| JMGO O2S Ultra |
|
| |
| Hisense PX4 Pro | None of these needs is a documented match |
|
Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

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