Comparison
TH671ST vs GT2300HDR
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A side-by-side look at how the BenQ TH671ST and Optoma GT2300HDR 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 TH671ST and GT2300HDR
Buy TH671ST
Prices confirmed Nov 10, 2026 · we check every retailer daily
Buy GT2300HDR
- Buy at Amazon $1,099Free ship, GT2300HDR
- Buy at PlayBetter $1,399Free ship, GT2300HDR
- Buy at Indoor Golf Outlet $1,099Free ship, GT2300HDR
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 | TH671ST | GT2300HDR |
|---|---|---|
| Resolution | 1080p (1920×1080) | 1080p (1920×1080) |
| Lumens | 3,000 ANSI | 3,600 (ISO 21118) |
| HDR | — | HDR10, HLG |
| Picture Mode | — | Golf Sim Mode |
- ResolutionTH671ST1080p (1920×1080)GT2300HDR1080p (1920×1080)
- LumensTH671ST3,000 ANSIGT2300HDR3,600 (ISO 21118)
- HDRTH671ST—GT2300HDRHDR10, HLG
- Picture ModeTH671ST—GT2300HDRGolf Sim Mode
Hardware
| Spec | TH671ST | GT2300HDR |
|---|---|---|
| Light Source | Lamp, 240 W (4,000 h normal, 10,000 h eco/SmartEco, 15,000 h LampSave) | DuraCore laser (30,000 hours, eco) |
| Throw Ratio | 0.69–0.83 (1.2× optical zoom) | 0.496:1 (fixed) |
| Offset | 102.5%; no lens shift | 116% (±5%); no lens shift |
| Dimensions | 11.65 × 8.82 × 4.72 in (W × D × H) | 10.8 × 8.5 × 4.5 in (W × D × H, datasheet) |
- Light SourceTH671STLamp, 240 W (4,000 h normal, 10,000 h eco/SmartEco, 15,000 h LampSave)GT2300HDRDuraCore laser (30,000 hours, eco)
- Throw RatioTH671ST0.69–0.83 (1.2× optical zoom)GT2300HDR0.496:1 (fixed)
- OffsetTH671ST102.5%; no lens shiftGT2300HDR116% (±5%); no lens shift
- DimensionsTH671ST11.65 × 8.82 × 4.72 in (W × D × H)GT2300HDR10.8 × 8.5 × 4.5 in (W × D × H, datasheet)
Requirements
| Spec | TH671ST | GT2300HDR |
|---|---|---|
| Throw Distance | 100 in at about 5.0–6.0 ft (BenQ's manual) | 100 in at about 3.6 ft (Optoma's manual) |
- Throw DistanceTH671ST100 in at about 5.0–6.0 ft (BenQ's manual)GT2300HDR100 in at about 3.6 ft (Optoma's manual)
Performance
| Spec | TH671ST | GT2300HDR |
|---|---|---|
| Input Lag | — | 8.6 ms at 1080p/120Hz (Optoma's manual; its page and golf datasheet say 8.4 ms; the higher is used) |
- Input LagTH671ST—GT2300HDR8.6 ms at 1080p/120Hz (Optoma's manual; its page and golf datasheet say 8.4 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
Honest persona fit, side by side.
Better for GT2300HDR
- Cost-Effective Buyer
A laser short throw for $1,099, with no lamp to replace. About what the GT2000HDR costs, rated 3,600 lumens (ISO 21118) against its 3,500 (Optoma states no standard for that one), with a Golf Sim mode it lacks, and $200 under the GT2400HDR.
- Space-Constrained
The 0.496 throw puts 100 inches up from about 3.6 ft, the same tight geometry as the GT2400HDR.
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