Comparison
LK935 vs LU935ST
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A side-by-side look at how the BenQ LK935 and BenQ LU935ST compare on specs, accuracy, room requirements, and price. No hype — just the parts of the decision a buyer actually weighs.
Also worth a look
More comparisons with the LK935 and LU935ST
Buy LK935
Prices confirmed Nov 10, 2026 · we check every retailer daily
Buy LU935ST
Prices confirmed Nov 10, 2026 · we check every retailer daily
When you buy through links on Northcourse, we may earn a commission at no additional cost to you. Read the full affiliate disclosure
Full specificationsEvery spec for both, line by line
Specifications
The numbers, lined up.
Image
| Spec | LK935 | LU935ST |
|---|---|---|
| Resolution | 4K UHD (3840×2160) | WUXGA (1920×1200), 16:10 |
| Lumens | 5,500 ANSI | 5,500 ANSI |
- ResolutionLK9354K UHD (3840×2160)LU935STWUXGA (1920×1200), 16:10
- LumensLK9355,500 ANSILU935ST5,500 ANSI
Hardware
| Spec | LK935 | LU935ST |
|---|---|---|
| Light Source | Laser (20,000 hours, normal mode) | Laser (20,000 hours) |
| Throw Ratio | 1.36–2.18 (1.6× manual zoom) | 0.81–0.89 (1.1× manual zoom) |
| Lens Shift | Vertical ±60%, horizontal ±23% (manual) | Vertical ±60%, horizontal ±23% (manual) |
| Dimensions | 16.38 × 13.83 × 6.56 in (W × D × H) | 16.38 × 13.83 × 6.56 in (W × D × H) |
- Light SourceLK935Laser (20,000 hours, normal mode)LU935STLaser (20,000 hours)
- Throw RatioLK9351.36–2.18 (1.6× manual zoom)LU935ST0.81–0.89 (1.1× manual zoom)
- Lens ShiftLK935Vertical ±60%, horizontal ±23% (manual)LU935STVertical ±60%, horizontal ±23% (manual)
- DimensionsLK93516.38 × 13.83 × 6.56 in (W × D × H)LU935ST16.38 × 13.83 × 6.56 in (W × D × H)
Requirements
| Spec | LK935 | LU935ST |
|---|---|---|
| Throw Distance | 100 in at about 9.9–15.8 ft (BenQ's manual) | 100 in (16:10) at about 5.7–6.3 ft (BenQ's manual) |
- Throw DistanceLK935100 in at about 9.9–15.8 ft (BenQ's manual)LU935ST100 in (16:10) at about 5.7–6.3 ft (BenQ's manual)
Performance
| Spec | LK935 | LU935ST |
|---|---|---|
| Input Lag | 33.4 ms at 1080p/60Hz (BenQ) | 33.4 ms at 1080p/60Hz (BenQ's spec table; a marketing line on the page claims under 17 ms) |
- Input LagLK93533.4 ms at 1080p/60Hz (BenQ)LU935ST33.4 ms at 1080p/60Hz (BenQ's spec table; a marketing line on the page claims under 17 ms)
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
Honest persona fit, side by side.
Better for LK935
- Showroom
4K, 5,500 ANSI lumens and wide lens shift, mounted at the back of a deep room where it stays out of the way. The lens shift lets an installer square the image without keystone.
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