The catch
Optoma UHD35STx
Calculate the mount position before buying, since the 0.5 throw lens is fixed.
Side by side
The UHD35STx is the right model if the projector has to stay close to a simulator or gaming screen. The UHZ35 makes sense when a longer room can take advantage of its 1.6x zoom and laser light source. Neither offers lens shift, so both need a carefully centered mount.
Before you buy
Optoma UHD35STx is the better match for “A golf simulator is what I am building” and “For a 100-inch picture I have 3 to 8 feet to work with”. Optoma UHZ35 is the better match for “I cannot move the position of my shelf or ceiling mount” and “It will stay up on a ceiling mount”.
Where this comes from
This lines up the current strong and useful fit ratings for the exact products. It does not roll them into one overall score.
The catch
Calculate the mount position before buying, since the 0.5 throw lens is fixed.
The catch
An off-center mount can't be fixed by the broad zoom, because there's no lens shift.


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A fixed short-throw lamp projector is matched against a flexible standard-throw laser model, both aimed at fast 4K and 240Hz gaming.
This one comes down to throw ratio and optical zoom first, then to the limits of your own setup.
Which one fits
Optoma UHD35STx lists “Fixed 0.5:1” for throw ratio, while Optoma UHZ35 lists “1.40–2.24:1”. Measure your space and mounting points first. This can be a hard limit on fit.
Measured from the lens to the screen, its verified lens range overlaps a 100-inch 16:9 picture from 3 to 8 feet.
In a tighter room, an 80–120-inch image is more practical thanks to its compact body, close-focusing optics or flexible stand.
Optoma UHD35STx lists “None” for optical zoom, while Optoma UHZ35 lists “1.6x”. For optical zoom, this affects image compatibility, placement or picture quality. Compare matching standards before you call either label the winner.
For a permanent ceiling or shelf position, its lens controls, lens memory or installation connections are a good fit.
In practice
Optoma UHD35STx is the better match for “A golf simulator is what I am building” and “For a 100-inch picture I have 3 to 8 feet to work with”. Optoma UHZ35 is the better match for “I cannot move the position of my shelf or ceiling mount” and “It will stay up on a ceiling mount”.
This lines up the current strong and useful fit ratings for the exact products. It does not roll them into one overall score.
Optoma UHD35STx meets 3 of the 3 needs this comparison is built around. Optoma UHZ35 meets 1 and misses “A golf simulator is what I am building” and “For a 100-inch picture I have 3 to 8 feet to work with”.
The count uses the current strong and useful fit ratings for these two products. Each need counts once, with no made-up score added on top.
5 of the 90 home projectors checked fit this need. Optoma UHD35STx makes the cut. Optoma UHZ35 does not.
The count filters every model in the current category for a strong or useful fit on this single need.
2 of the 90 home projectors checked handle both “A golf simulator is what I am building” and “For a 100-inch picture I have 3 to 8 feet to work with”. Optoma UHD35STx makes the cut. Optoma UHZ35 does not.
You can reproduce the count by filtering the current category for models with a strong or useful fit on both needs.
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 4.36 ft. You entered 9.50 ft.
We do not have a complete verified lens range for this exact model.
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.

Optoma, UHD35STx
Compact gaming rooms and golf simulator bays suit this fixed short-throw 4K lamp projector with low-latency modes.

Optoma, UHZ35
This 4K laser gaming projector has a long 1.6x zoom, made for rooms where both a conventional throw and fast play at lower resolution matter.
Spec by spec
| Spec | Optoma UHD35STx | Optoma UHZ35 | In practice |
|---|---|---|---|
| Throw ratio | Fixed 0.5:1 | 1.40–2.24:1 | Fit can be a hard limit, so measure your space and mounting points before anything else. |
| Optical zoom | None | 1.6x | For optical zoom, this affects image compatibility, placement or picture quality. Compare matching standards before you call either label the winner. |
| Light source | Replaceable lamp | Laser | For light source, this affects image compatibility, placement or picture quality. Compare matching standards before you call either label the winner. |
Trade-offs
By the numbers
What we found across the home projectors we compare, plus the checked facts behind each finding.
Only 2 of the 90 models checked meet every need here: “A golf simulator is what I am building”, “For a 100-inch picture I have 3 to 8 feet to work with”, and “Fast or competitive games are what I play”.
2 models fit, out of 90 checkedHow we countedThe count uses each product's current fit ratings for “A golf simulator is what I am building”, “For a 100-inch picture I have 3 to 8 feet to work with”, and “Fast or competitive games are what I play”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Optoma UHD35STx |
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| Optoma UHZ35 |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Your compact simulator or gaming bay calls for a short throw.
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The projector goes farther back.
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