Comparison
GT3900UHD vs UHZ35ST
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A side-by-side look at how the Optoma GT3900UHD and Optoma UHZ35ST compare on specs, accuracy, room requirements, and price. No hype — just the parts of the decision a buyer actually weighs.
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More comparisons with the GT3900UHD and UHZ35ST
Buy GT3900UHD
Prices confirmed Nov 10, 2026 · we check every retailer daily
Buy UHZ35ST
Prices confirmed Nov 10, 2026 · we check every retailer daily
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Full specificationsEvery spec for both, line by line
Specifications
The numbers, lined up.
Image
| Spec | GT3900UHD | UHZ35ST |
|---|---|---|
| Resolution | 4K UHD (3840×2160) | True 4K (3840×2160) |
| Lumens | 4,000 (ISO 21118) | 3,500 (standard not stated) |
| HDR | HDR10, HLG | HDR10, HLG |
| Picture Mode | Golf Mode | Golf Sim preset |
| Screen Size | 30–150 in (Optoma's page and datasheet) | — |
- ResolutionGT3900UHD4K UHD (3840×2160)UHZ35STTrue 4K (3840×2160)
- LumensGT3900UHD4,000 (ISO 21118)UHZ35ST3,500 (standard not stated)
- HDRGT3900UHDHDR10, HLGUHZ35STHDR10, HLG
- Picture ModeGT3900UHDGolf ModeUHZ35STGolf Sim preset
- Screen SizeGT3900UHD30–150 in (Optoma's page and datasheet)UHZ35ST—
Hardware
| Spec | GT3900UHD | UHZ35ST |
|---|---|---|
| Light Source | DuraCore laser (30,000 hours, eco) | Laser (30,000 hours) |
| Throw Ratio | 0.496:1 (fixed) | 0.496:1 (fixed) |
| Offset | 114% (±5%); no lens shift | — |
| Dimensions | 10.8 × 8.5 × 4.5 in (W × D × H, datasheet) | — |
| Fan Noise | — | 28–35 dB (Optoma spec) |
- Light SourceGT3900UHDDuraCore laser (30,000 hours, eco)UHZ35STLaser (30,000 hours)
- Throw RatioGT3900UHD0.496:1 (fixed)UHZ35ST0.496:1 (fixed)
- OffsetGT3900UHD114% (±5%); no lens shiftUHZ35ST—
- DimensionsGT3900UHD10.8 × 8.5 × 4.5 in (W × D × H, datasheet)UHZ35ST—
- Fan NoiseGT3900UHD—UHZ35ST28–35 dB (Optoma spec)
Requirements
| Spec | GT3900UHD | UHZ35ST |
|---|---|---|
| Throw Distance | 100 in at about 3.6 ft (Optoma's manual) | — |
- Throw DistanceGT3900UHD100 in at about 3.6 ft (Optoma's manual)UHZ35ST—
Performance
| Spec | GT3900UHD | UHZ35ST |
|---|---|---|
| Input Lag | As low as 4.3 ms at 1080p/240Hz (Optoma) | 17 ms at 4K/60; 4.4 ms at 1080p/240Hz (Optoma's spec table says 16 ms at 4K/60, its feature list and datasheet 17 ms; the higher is used) |
- Input LagGT3900UHDAs low as 4.3 ms at 1080p/240Hz (Optoma)UHZ35ST17 ms at 4K/60; 4.4 ms at 1080p/240Hz (Optoma's spec table says 16 ms at 4K/60, its feature list and datasheet 17 ms; the higher is used)
Room planner
See each one in your sim room.
The planner draws each unit to scale with your room and your swing: where it mounts, the throw it needs, and whether your shadow crosses the light. Put in your room once, then switch units in the planner to compare.
Persona fitWho each one is better for
Who each one is better for
Both fit the same buyers.
Neither one wins a persona the other doesn’t. The choice comes down to specs, price, and room fit rather than buyer profile.
Both fit
- Space-Constrained
- Family Setup
- Performance Seeker
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