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Comparison

TK710STi vs ZK431ST-B

BenQ TK710STiBenQTK710STi
$1,999
Buy at Amazon · $1,965, TK710STiCompare 6 retailers
vs
Optoma ZK431ST-BOptomaZK431ST-B
$1,799
Buy at Indoor Golf Outlet · $1,799, ZK431ST-BCompare 2 retailers

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A side-by-side look at how the BenQ TK710STi and Optoma ZK431ST-B 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 TK710STi and ZK431ST-B

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Full specificationsEvery spec for both, line by line

Specifications

The numbers, lined up.

Image

  • Resolution
    TK710STi4K UHD (3840×2160); BenQ calls it True 4K (DLP, 8.3 million pixels on screen)
    ZK431ST-B4K UHD (3840×2160); Optoma calls it True 4K UHD and names no chip
  • Lumens
    TK710STi3,200 ANSI
    ZK431ST-B4,100 (ISO 21118)
  • HDR
    TK710STiHDR10 + HLG
    ZK431ST-B—
  • Color
    TK710STi95% Rec. 709
    ZK431ST-B—
  • Picture Mode
    TK710STi—
    ZK431ST-BGolf Sim colour mode (preset)
  • Screen Size
    TK710STi—
    ZK431ST-B36–300 in (Optoma's spec table says 30–300, its feature list 36–300; the narrower range is used)

Hardware

  • Light Source
    TK710STiLaser (20,000 hours)
    ZK431ST-BDuraCore laser (30,000 hours, eco)
  • Throw Ratio
    TK710STi0.69–0.83 (1.2× zoom)
    ZK431ST-B0.496:1 (short throw, fixed)
  • Fan Noise
    TK710STi31/28 dB (normal/eco, BenQ spec)
    ZK431ST-B—
  • Lens
    TK710STi—
    ZK431ST-BFixed 0.496:1 short-throw lens (no zoom, no lens shift)
  • Keystone
    TK710STi—
    ZK431ST-B±15° with Smart Fit auto-alignment

Performance

  • Input Lag
    TK710STi4.2 ms @ 1080p/240Hz; 8.3 ms @ 1080p/120Hz; 16.7 ms @ 4K/60Hz
    ZK431ST-B16.8 ms at 4K/60Hz and 8.6 ms at 1080p/120Hz with Enhanced Gaming on (Optoma's page says 16.7 ms at 4K/60; the manual's 16.8 is used); 33.5 ms at 4K/60 with it off. Keystone and four-corner correction are disabled in low-latency mode

Software

  • Includes
    TK710STiAndroid TV dongle
    ZK431ST-B—

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.

See the TK710STi in your sim room →See the ZK431ST-B in your sim room →
Persona fitWho each one is better for

Who each one is better for

Honest persona fit, side by side.

Better for TK710STi

  • Recreational Player

    True 4K with laser life and HDR — the courses look genuinely impressive and the projector lasts the life of the room.

Better for ZK431ST-B

  • Space-Constrained

    0.496:1 puts a 100-inch image up from about 3.6 feet, so it mounts close and stays out of the swing path. That is the tightest throw in the catalog, shared in 4K with the GT3900UHD, UHZ35ST and BenQ LK830ST.

Both fit

  • Performance Seeker
  • Family Setup

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