BenQ TH690ST 4LED 1080p HDR Short Throw Projector

The BenQ TH690ST is a high-performance short-throw projector optimized for gaming, movies and home entertainment, combining Full HD 1080p resolution with HDR10/HLG support and a robust 4LED light-source engine. With a brightness of 2,300 ANSI lumens and a throw-ratio of approximately 0.69-0.83:1 (meaning you can project a 100″ image at just about 1.5 m from the screen) it’s ideal for smaller rooms or dedicated setups where space behind the seating is limited. BenQ+2ProHiFi India+2 The projector delivers strong colour fidelity with 98% Rec.709 and 84% DCI-P3 coverage, ensuring vivid, accurate images whether you’re watching movies or playing console games. BenQ+1 For gamers, the TH690ST impresses with very low input lag — as low as 8.3 ms at 1080p/120Hz — making it responsive enough for competitive and fast-paced play. BenQ Additional features include dual HDMI 2.0b (HDCP 2.2), 2D vertical/horizontal auto keystone adjustment (±30°), built-in stereo speakers and long LED lifespan (20,000–30,000 hours) thanks to the 4LED light engine. B&H Photo Video+1 In terms of design, it’s compact (~366 × 244 × 118 mm; ~3.6 kg) which makes for easier placement or ceiling/shelf mounting even in tighter spaces. AV Shack+1 In short: if you’re looking for a short-throw projector that delivers sharp 1080p HDR visuals, good colour accuracy, and strong gaming credentials — all in a space-efficient footprint — the TH690ST is an excellent choice.

Description

Level up your party fun with epic gameplay. TH690ST does it all with excellent movie industry standard DCI-P3 color performance, stunning 1080p HDR picture quality, low input lag, and 2300 lumens of 4LED long life span. All you need to do is jump into AAA games with your friends and enjoy never-ending, smooth, and immersive action at your game corner.

Warranty:

2-year manufacturer’s warranty

Features:

Brightness of 2300 Lumens
Full HD (1920 x 1080) Native Resolution
1.2x Zoom & 0.69-0.83:1 Throw Ratio
4-LED Light Source
120 Hz Refresh Rate & 8.3 ms Latency
Project a 100″ Image from 4.9′ Away
2 x HDMI 2.0b & 1 x USB Type-A Inputs
Dual 5W ReVolo Speakers & Optical Out
HDR/HLG Support
2D Keystone Image Adjustment

LIGHT OR DARK ROOM SUPPORT
The 4LED light source powers 2300 lumens of brightness, which can work in dark to moderate lighting conditions, but BenQ lets you optimize that with multiple Game Modes. You have the ability to tweak the projector’s performance for game modes specific to lighter or darker room lighting conditions, maximizing image quality no matter when you play.

EASY IMAGE ADJUSTMENT
Getting a 16:9 rectangle for proper gameplay on your wall or projection screen is made easy with built-in image adjustments. You get 1.2x zoom to dial in the image size without having to move the projector, and 2D keystone support helps to even out any trapezoidal images.

BUILT-IN OR EXTERNAL AUDIO
The TH690ST provides you with dual 5W ReVolo chambered speakers for built-in audio support, along with a 5.1-channel optical audio output to your existing home theater to maximize your home entertainment experience.

ADDITIONAL FEATURES

84% DCI-P3 and 98% Rec 709 color coverage
0.69 to 0.83:1 throw ratio
Up to 30,000-hour LED lifespan
Works with VGA to 4K UHD video sources
Ceiling mountable with optional mount
Supports optional DGD5 3D glasses

Technical Specifications:

Display System	DLP
Native Chip Resolution	1920 x 1080 (Full HD)
Supported Resolutions	Minimum: VGA – 640 x 480 Maximum: 4K UHD – 3840 x 2160 @ 60 Hz
Maximum Brightness	2300 Lumens (ANSI)
Offset	102.5%
Aspect Ratio	Native: 16:9
Dynamic Contrast Ratio	500,000:1
DLP Link 3D	Yes
Color Depth	10-Bit (1.07 Billion Colors)
Scan	Horizontal: 15 to 135 kHz Vertical: 23 to 120 Hz
Latency	8.3 to 33.4 ms
Lens	f/2.6 – 2.78 (f = 10.2 – 12.24 mm)
Throw Ratio	0.69 to 0.83:1 (100″ Screen Size @ 4.9′ / 1.5 m)
Keystone Correction	Auto-Vertical: ± 30° Auto-Horizontal: ± 30°
Supported HDR Input Formats	HDR10, Hybrid Log Gamma
Digital Zoom	1.2x
Multi-Input Support (PIP/PBP)	Not Specified by Manufacturer
Ceiling Mountable	Yes
Built-In Speaker	Yes (Stereo)
Speaker Power	10W
Remote	Yes
Inputs/Outputs	2 x HDMI 2.0b Audio, Video Input 1 x TOSLINK Audio Output 1 x 1/8″ / 3.5 mm Mini Audio Input 1 x 1/8″ / 3.5 mm Mini Audio Output 1 x USB-A 2.0 Power, Service Input/Output 1 x DE-9/DB-9 (RS-232) Service Input
HDCP Support	Version 2.2
Bluetooth	None
Light Source	Multi-LED
Expected Lamp Life	Medium Brightness: 20,000 Hours Low Brightness: 30,000 Hours
Fan Noise	Medium Brightness: 33 dB Low Brightness: 28 dB
Security	Cable Lock Slot
AC Input Power	100 to 240 VAC, 50 / 60 Hz
Power Consumption	Medium Brightness: 140 W Standby Mode (Lamp Off): < 0.5 W
Operating Temperature	32 to 104°F / 0 to 40°C
Dimensions (W x H x D)	14.4 x 9.6 x 4.6″ / 366.0 x 244.0 x 118.0 mm
Box Dimensions (LxWxH)	19 x 15.5 x 9″
Weight	7.9 lb / 3.6 kg
Package Weight	11.835 lb