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BenQ LH830ST
BenQ TK705i

BenQ LH830ST BenQ TK705i

Common Features

  • ✓ Both products use a laser light source.
  • ✓ Both products support HDR10.
  • ✓ Both products support HLG.
  • ✓ Both products have 10-bit bit depth.
  • ✓ Both products have a 60Hz refresh rate.
  • ✓ Both products have AirPlay support.
  • ✓ Both products have Bluetooth support.
  • ✓ Both products have two USB ports.
  • ✓ Both products have Chromecast built-in.
  • ✓ Both products have an S/PDIF Out port.
  • ✓ Both products have a remote control.
  • ✓ Both products have built-in smart TV functionality.
  • ✓ Both products have a built-in speaker.

Main Differences

  • • Lamp life is 200 hours on BenQ LH830ST and 20000 hours on BenQ TK705i.
  • • Audible noise is 33 dB on BenQ LH830ST and 26 dB on BenQ TK705i.
  • • Audible noise in eco mode is 29 dB on BenQ LH830ST and 24 dB on BenQ TK705i.
  • • Operating power consumption is 320W on BenQ LH830ST and 250W on BenQ TK705i.
  • • Lamp life in eco mode is 0.5 hours on BenQ LH830ST and 30000 hours on BenQ TK705i.
  • • Width is 279.2 mm on BenQ LH830ST and 230 mm on BenQ TK705i.
  • • Height is 120.5 mm on BenQ LH830ST and 170 mm on BenQ TK705i.
  • • Thickness is 229.3 mm on BenQ LH830ST and 250 mm on BenQ TK705i.
  • • Weight is 3400 g on BenQ LH830ST and 3800 g on BenQ TK705i.
  • • Volume is 7714.47748 cm³ on BenQ LH830ST and 9775 cm³ on BenQ TK705i.
  • • ANSI lumens is 4000 on BenQ LH830ST and 3000 on BenQ TK705i.
  • • Output resolution is 1080p on BenQ LH830ST and 4K on BenQ TK705i.
  • • Response time is 16.7 ms on BenQ LH830ST and 5 ms on BenQ TK705i.
  • • BenQ TK705i has motorized focus, while BenQ LH830ST does not.
  • • Maximum projection size is 180″ on BenQ LH830ST and 160″ on BenQ TK705i.
  • • HDR10+ support is present on BenQ TK705i but not available on BenQ LH830ST.
  • • BenQ LH830ST has manual focus, while BenQ TK705i does not.
  • • Minimum throw distance is 0.5 m on BenQ LH830ST and 1.4 m on BenQ TK705i.
  • • BenQ LH830ST supports Wi-Fi, while BenQ TK705i does not.
  • • BenQ LH830ST supports Miracast, while BenQ TK705i does not.
  • • BenQ LH830ST has 1 HDMI port, while BenQ TK705i has 2 HDMI ports.
  • • BenQ LH830ST has no stereo speakers, while BenQ TK705i has stereo speakers.
  • • Audio output power is 1 x 2W on BenQ LH830ST and 2 x 8W on BenQ TK705i.
Specs Comparison
BenQ LH830ST

BenQ LH830ST

BenQ TK705i

BenQ TK705i

General info:
lamp life 200 h 20000 h
audible noise 33 dB 26 dB
has laser light source ✓ ✓
audible noise (eco) 29 dB 24 dB
release date August 2025 October 2025
operating power consumption 320W 250W
lamp life (eco mode) 0.5 h 30000 h
width 279.2 mm 230 mm
height 120.5 mm 170 mm
thickness 229.3 mm 250 mm
weight 3400 g 3800 g
volume 7714.47748 cm³ 9775 cm³

The BenQ LH830ST and BenQ TK705i both feature a laser light source, but their lamp life differs significantly. The LH830ST has a lamp life of 200 hours, whereas the TK705i boasts an impressive 20,000 hours, which is a huge difference in longevity. The eco modes also show a contrast: the LH830ST’s eco lamp life is only 0.5 hours, while the TK705i’s eco lamp life extends to 30,000 hours.

When it comes to audible noise, the LH830ST produces 33 dB in normal mode, and 29 dB in eco mode. The TK705i is quieter, with 26 dB in normal mode and 24 dB in eco mode. This makes the TK705i a better choice for quieter environments.

In terms of size and weight, the LH830ST is more compact with a width of 279.2 mm, height of 120.5 mm, and a thickness of 229.3 mm. It weighs 3400 g and has a volume of 7714.48 cm³. The TK705i, on the other hand, is slightly bulkier, with a width of 230 mm, height of 170 mm, and a thickness of 250 mm. It is heavier at 3800 g and has a larger volume of 9775 cm³. Despite these differences, both projectors are designed for portability, but the LH830ST is more compact.

Projection quality:
ANSI lumens 4000 lumens 3000 lumens
output resolution 1080p 4K
response time 16.7 ms 5 ms
has motorized focus ✕ ✓
maximum projection size 180" 160"
has motorized zoom ✕ ✕
supports HDR10+ ✕ ✓
bit depth 10-bit 10-bit
has manual focus ✓ ✕
minimum throw distance 0.5 m 1.4 m
refresh rate 60Hz 60Hz
supports HDR10 ✓ ✓
supports HLG ✓ ✓

The BenQ LH830ST and BenQ TK705i differ significantly in terms of projection quality specifications. The LH830ST offers 4000 ANSI lumens, while the TK705i has 3000 ANSI lumens, meaning the LH830ST is brighter. In terms of output resolution, the LH830ST provides 1080p resolution, whereas the TK705i offers 4K resolution, which delivers a higher level of detail.

The response time for the LH830ST is 16.7 ms, while the TK705i has a much faster response time of 5 ms, which may result in a smoother image, particularly in fast-moving content. The LH830ST has manual focus, but no motorized focus, while the TK705i features motorized focus, but lacks manual focus, giving the TK705i a more automated adjustment option.

When considering projection size, the LH830ST supports a larger maximum projection size of 180″, compared to the TK705i's 160″. The minimum throw distance for the LH830ST is 0.5 m, making it suitable for shorter distances, while the TK705i requires a longer minimum throw distance of 1.4 m. Both projectors support HDR10 and HLG, with the TK705i additionally supporting HDR10+. The bit depth for both projectors is 10-bit, and the refresh rate for both is 60Hz.

Connectivity:
HDMI ports 1 2
has AirPlay ✓ ✓
Has Bluetooth ✓ ✓
supports Wi-Fi ✓ ✕
USB ports 2 2
has Chromecast built-in ✓ ✓
has a VGA connector ✕ ✕
has a DVI connector ✕ ✕
supports Miracast ✓ ✕
RJ45 ports 0 0
Has S/PDIF Out port ✓ ✓

The BenQ LH830ST and BenQ TK705i offer several similar connectivity features, but there are a few key differences. Both models have AirPlay, Bluetooth, USB ports (2), and Chromecast built-in. However, the LH830ST supports Wi-Fi, while the TK705i does not. Additionally, the LH830ST supports Miracast, whereas the TK705i does not.

When it comes to HDMI ports, the LH830ST has 1 HDMI port, while the TK705i offers 2 HDMI ports, giving the TK705i more flexibility for connecting multiple devices. Both projectors lack a VGA and DVI connector, and both have an S/PDIF Out port. Neither model features an RJ45 port.

In summary, while both projectors share many common connectivity features, the LH830ST has an advantage in wireless options, supporting Wi-Fi and Miracast, while the TK705i offers more HDMI ports for device connectivity.

Features:
has stereo speakers ✕ ✓
has a remote control ✓ ✓
has built-in smart TV ✓ ✓
has a built-in speaker ✓ ✓
audio output power 1 x 2W 2 x 8W

The BenQ LH830ST and BenQ TK705i have a few notable differences in their features. Both projectors come with a remote control and built-in smart TV functionality, but the LH830ST lacks stereo speakers, whereas the TK705i does include stereo speakers. Both models have a built-in speaker, but the audio output power differs. The LH830ST has a 1 x 2W audio output, while the TK705i provides a more powerful 2 x 8W audio output.

In summary, the TK705i offers superior audio capabilities with its stereo speakers and stronger audio output compared to the LH830ST, which does not have stereo speakers and has a lower audio output.

Comparison Summary

This is a specification comparison between the BenQ LH830ST and BenQ TK705i. Both models feature a laser light source, 10-bit bit depth, HDR10 support, and AirPlay support. However, they differ significantly in key areas: the BenQ LH830ST offers a 200-hour lamp life compared to the BenQ TK705i's 20000 hours, and its audible noise is higher at 33 dB versus 26 dB. The BenQ LH830ST has a 1080p output resolution, while the BenQ TK705i supports 4K resolution. Additionally, the BenQ LH830ST supports Wi-Fi and Miracast, which the BenQ TK705i does not.