Main trade-off
Optoma UHD35STx
The 0.5 throw lens is fixed, so mount position must be calculated before buying.
Head-to-head
Choose the UHD35STx when the projector must stay close to a simulator or gaming screen. Choose the UHZ35 when a longer room can use its 1.6x zoom and laser light source. Both need a carefully centered mount because neither offers lens shift.
Before you choose
Optoma UHD35STx has the stronger fit for “I am building a golf simulator” and “I have 3 to 8 feet for a 100-inch picture”. Optoma UHZ35 has the stronger fit for “My shelf or ceiling mount position is fixed” and “It will stay ceiling-mounted”.
What this is based on
This compares the current strong and useful fit assignments for the exact products. It does not turn them into one overall score.
Main trade-off
The 0.5 throw lens is fixed, so mount position must be calculated before buying.
Main trade-off
It has no lens shift, so the broad zoom does not correct an off-center mount.


A fixed short-throw lamp projector faces a flexible standard-throw laser model for fast 4K and 240Hz gaming.
The practical choice turns on throw ratio and optical zoom, then on the constraints in your own setup.
Winner by situation
For throw ratio, Optoma UHD35STx records “Fixed 0.5:1” and Optoma UHZ35 records “1.40–2.24:1”. Measure the available space and mounting points because this can be a hard fit constraint.
Its verified lens range overlaps a 100-inch 16:9 picture from 3 to 8 feet, measured from the lens to the screen.
Its compact body, close-focusing optics or flexible stand makes an 80–120-inch image more practical in a tighter room.
For optical zoom, Optoma UHD35STx records “None” and Optoma UHZ35 records “1.6x”. For optical zoom, this affects image compatibility, placement or viewing quality. Compare like-for-like standards before treating the label as a winner.
Its lens controls, lens memory or installation connections suit a permanent ceiling or shelf position.
What matters in practice
Optoma UHD35STx has the stronger fit for “I am building a golf simulator” and “I have 3 to 8 feet for a 100-inch picture”. Optoma UHZ35 has the stronger fit for “My shelf or ceiling mount position is fixed” and “It will stay ceiling-mounted”.
This compares the current strong and useful fit assignments for the exact products. It does not turn them into one overall score.
Optoma UHD35STx covers 3 of the 3 buyer requirements attached to this comparison. Optoma UHZ35 covers 1, missing “I am building a golf simulator” and “I have 3 to 8 feet for a 100-inch picture”.
This count uses the current strong and useful fit assignments for the named products. A requirement counts once, and no arbitrary score is added.
5 of 90 checked home projectors match this need. Optoma UHD35STx is in that group. Optoma UHZ35 is not.
The count filters the current category dataset for a strong or useful fit on this one buyer need.
2 of 90 checked home projectors cover both “I am building a golf simulator” and “I have 3 to 8 feet for a 100-inch picture”. Optoma UHD35STx is in that group. Optoma UHZ35 is not.
The count is reproduced by filtering the current category dataset for products with a strong or useful fit for both needs.
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 4.36 ft. Your input is 9.50 ft.
No complete verified optical range is stored for this exact model.
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.

Optoma, UHD35STx
A fixed short-throw 4K lamp projector with low-latency modes for compact gaming rooms and golf simulator bays.

Optoma, UHZ35
A 4K laser gaming projector with a long 1.6x zoom for rooms where a conventional throw and fast lower-resolution play both matter.
Meaningful differences
| What changes | Optoma UHD35STx | Optoma UHZ35 | Why it matters |
|---|---|---|---|
| Throw ratio | Fixed 0.5:1 | 1.40–2.24:1 | Measure the available space and mounting points because this can be a hard fit constraint. |
| Optical zoom | None | 1.6x | For optical zoom, this affects image compatibility, placement or viewing quality. Compare like-for-like standards before treating the label as a winner. |
| Light source | Replaceable lamp | Laser | For light source, this affects image compatibility, placement or viewing quality. Compare like-for-like standards before treating the label as a winner. |
What you give up
What the facts say
Useful conclusions from the current home projectors comparison, followed by the checked facts used to reach them.
Only 2 of 90 models checked match every need here: “I am building a golf simulator”, “I have 3 to 8 feet for a 100-inch picture”, and “I play fast or competitive games”.
2 matching models from 90 checkedMatch countThe count uses the current product-to-need assignments for “I am building a golf simulator”, “I have 3 to 8 feet for a 100-inch picture”, and “I play fast or competitive games”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Optoma UHD35STx |
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| Optoma UHZ35 |
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

A compact simulator or gaming bay needs short throw.
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The projector sits farther back.
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