Comparison
LK936ST vs ProBeam BU53RG
Short answer
Both are 5,000-lumen-class 4K laser projectors with lens shift. The BenQ LK936ST's extra $1,100 buys a shorter throw, more lens shift, a longer-rated laser, a dust-sealed engine and a Golf Mode; the LG BU53RG is the pick if your room has the depth and the $1,100 matters more.
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By buyer
Which one for you
- Shallow room or a tight mounting position
- BenQ LK936ST. About 8 to 9 ft of throw for a 10-ft-wide image, against 9.4 to 11.1 ft for the LG.
- Dusty garage or long daily hours
- BenQ LK936ST. An IP5X-sealed engine and a laser rated for 20,000 hours.
- Deep room, and the budget matters
- LG ProBeam BU53RG. The same brightness class for $1,100 less, where it is in stock.
Also worth a look
More comparisons with the LK936ST and ProBeam BU53RG
Bottom line
The longer answer
These are the two showroom-tier laser projectors we track, and on paper they are close: 5,100 ANSI lumens for the LK936ST and 5,000 for the BU53RG, both 4K UHD, both with HDR, both with horizontal and vertical lens shift. The LK936ST is $4,899 at most retailers and $4,799.99 on Amazon. The BU53RG is $3,799 at Carl's Place and Indoor Golf Outlet; LG's own store and B&H show it out of stock, and Newegg has it for a little more.
Throw distance is the practical difference. The LK936ST's 0.81–0.89 ratio puts it about 8 to 9 ft from the screen for a 10-ft-wide image; the BU53RG's 0.94–1.14 (0.94–1.107 where LG's own throw tables agree) needs about 9.4 to 11.1 ft. In most sim rooms every extra foot of throw moves the projector back toward the hitting area, so the shorter ratio leaves more places to mount it.
BenQ's spec sheet also gives the LK936ST more lens shift (±60% vertical and ±23% horizontal, against LG's ±50% and ±20%), a laser rated for 20,000 hours against the 15,000 on LG's product page (LG's own spec sheet says up to 20,000), an IP5X-sealed engine, a Golf Mode color preset and a published 16.7 ms input lag. LG's spec page lists no dust rating and no input-lag figure for the BU53RG.
At over 5,000 lumens either one handles a room with some lights on, and neither has a lamp to replace. The LK936ST is the stronger golf projector on every published spec that matters here. The BU53RG is a reasonable way to save $1,100 if the room is deep enough for its throw and you can find one in stock.
Buy LK936ST
- Buy at Amazon $4,899Free ship, LK936ST
- Buy at PlayBetter $4,899Free ship, LK936ST
- Buy at Indoor Golf Outlet $4,899Free ship, LK936ST
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Prices confirmed Nov 10, 2026 · we check every retailer daily
Buy ProBeam BU53RG
- Buy at PlayBetter $3,799Free ship, ProBeam BU53RG
- Buy at Indoor Golf Outlet $3,799Free ship, ProBeam BU53RG
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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 | LK936ST | ProBeam BU53RG |
|---|---|---|
| Resolution | 4K UHD (3840×2160), pixel-shifted from a 0.47-in DMD (BenQ calls it True 4K) | 4K UHD (XPR pixel-shift) |
| Lumens | 5,100 ANSI | 5,000 ANSI |
| Picture Mode | Golf picture mode | — |
| HDR | HDR10, HLG | Yes (LG does not name the formats) |
- ResolutionLK936ST4K UHD (3840×2160), pixel-shifted from a 0.47-in DMD (BenQ calls it True 4K)ProBeam BU53RG4K UHD (XPR pixel-shift)
- LumensLK936ST5,100 ANSIProBeam BU53RG5,000 ANSI
- Picture ModeLK936STGolf picture modeProBeam BU53RG—
- HDRLK936STHDR10, HLGProBeam BU53RGYes (LG does not name the formats)
Hardware
| Spec | LK936ST | ProBeam BU53RG |
|---|---|---|
| Light Source | Laser, IP5X sealed (20,000 hours normal; BenQ's spec sheet adds 30,000 eco) | Laser (up to 15,000 hours per LG's product page; its spec sheet says 20,000) |
| Throw Ratio | 0.81–0.89 (short-throw) | 0.94–1.107 to plan with (1.2× zoom): LG's spec says 0.94–1.14, its manual's throw tables 0.91–1.107 |
| Lens Shift | V ±60% / H ±23% | H ±20% / V ±50% |
- Light SourceLK936STLaser, IP5X sealed (20,000 hours normal; BenQ's spec sheet adds 30,000 eco)ProBeam BU53RGLaser (up to 15,000 hours per LG's product page; its spec sheet says 20,000)
- Throw RatioLK936ST0.81–0.89 (short-throw)ProBeam BU53RG0.94–1.107 to plan with (1.2× zoom): LG's spec says 0.94–1.14, its manual's throw tables 0.91–1.107
- Lens ShiftLK936STV ±60% / H ±23%ProBeam BU53RGH ±20% / V ±50%
Performance
| Spec | LK936ST | ProBeam BU53RG |
|---|---|---|
| Input Lag | 33.4 ms at 4K/60Hz and 1080p/60Hz (BenQ's spec page also lists 16.7 ms for both; the larger is used) | — |
- Input LagLK936ST33.4 ms at 4K/60Hz and 1080p/60Hz (BenQ's spec page also lists 16.7 ms for both; the larger is used)ProBeam BU53RG—
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
- Showroom
- Performance Seeker
Build your simulator in two minutes
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We ask about your budget, your room, and how you’ll use it. We return a complete build — launch monitor, mat, enclosure, projector, software, PC — with the reasoning behind every pick and the alternatives we considered.