Optoma UHD35STx Short Throw True 4K UHD Gaming and Home Entertainment Projector 3,600 Lumens 240Hz Refresh Rate and Ultra-Low 4ms Response Time

Optoma UHD35STx – Short Throw True 4K UHD Gaming & Home Entertainment Projector | 3,600 Lumens, 240Hz, Ultra-Low 4ms Response, HDR10/HLG, 4K@60Hz – White

True 4K. Short Throw. Ultra-Fast Gaming. Big-Screen Cinema.
The Optoma UHD35STx is a high-performance short-throw 4K UHD projector designed for gamers, movie lovers, and home entertainment enthusiasts who want incredible picture quality and ultra-fast responsiveness. With 3,600 lumens brightness, true 4K UHD resolution, and support for HDR10 and HLG, this projector delivers breathtaking clarity, vibrant colours, and exceptional contrast—even in brighter rooms.

Its short-throw lens allows massive screens from very short distances—perfect for small rooms, apartments, and setups where space is limited. Gamers will love the ultra-low 4ms response time and 240Hz refresh rate at 1080p, delivering fluid, competitive-level gameplay with minimal input lag. At 4K 60Hz, input lag is impressively low, making it excellent for PS5, Xbox Series X, and PC gaming.

The UHD35STx also excels as a home cinema projector, offering smooth motion, crisp detail, and huge screen sizes up to 300 inches. With dual HDMI ports, enhanced gaming mode, and long lamp life, it’s a powerful all-in-one entertainment solution.

⭐ Key Features

🎮 Ultra-Fast Gaming Performance

• 4.2ms input lag at 1080p/240Hz

• 16.7ms at 4K/60Hz
  Perfect for competitive FPS, racing games, and fast-action titles.

🌈 True 4K UHD Resolution (8.3 Million Pixels)
Sharp, detailed visuals ideal for movies, sports, and next-gen consoles.

🔆 High Brightness – 3,600 Lumens
Bright, vivid images even in rooms with ambient light.

🎥 HDR10 & HLG Support
Enhanced contrast and colour accuracy for more cinematic scenes.

📏 Short Throw Projection
100″ screen from just 1.2 metres away—ideal for small rooms.

⚡ 240Hz Ultra-Fast Refresh Rate
Super-smooth gameplay and motion clarity at high frame rates.

📺 Up to 300” Image Size
Transform your gaming or movie setup into a massive, theatre-like display.

🔊 Built-In Speaker
Integrated audio for quick plug-and-play setups.

🔌 Dual HDMI 2.0 Inputs
Connect PS5, Xbox Series X/S, Nintendo Switch, PC, or streaming boxes.

💡 Long Lamp Life
Up to 15,000 hours in Eco mode for low maintenance and long-term value.

🎯 Perfect For:

• Gamers wanting ultra-low latency and smooth 240Hz refresh

• Next-gen console users (PS5, Xbox Series X/S)

• Small rooms needing short-throw projection

• Home cinema enthusiasts

• Living rooms, game rooms, apartments, and media setups

📌 Specifications:

• Model: Optoma UHD35STx

• Resolution: True 4K UHD

• Brightness: 3,600 lumens

• Input Lag: 4.2ms (1080p 240Hz), 16.7ms (4K 60Hz)

• Refresh Rate: Up to 240Hz

• Throw Type: Short Throw

• HDR: HDR10 / HLG

• Inputs: 2× HDMI 2.0, USB, audio out

• Max Image Size: 300″

• Lamp Life: Up to 15,000 hrs

• Colour: White

🎥 The Optoma UHD35STx delivers stunning 4K cinema-quality visuals, ultra-fast gaming performance, and massive screens in small spaces—making it one of the best short-throw 4K gaming projectors available.

Optimized for Gaming

Enhanced Gaming Mode reduces input lag down to 4.2ms at 1080p 240 Hz for lag-free response. The Optoma UHD35STx has unparalleled input response time at 4K UHD resolutions for a projector – 16ms – so you can choose a serious competitive advantage at 1080p, or incredible detail with 4K UHD resolution. Playing on a console? If you have a Sony Playstation 5 or a Microsoft Xbox Series X|S, you can choose from 1080p 120Hz or 4K UHD 60Hz game play for blur-free visuals and outstanding smoothness.

HDR10 and HLG Compatible

Compatibility with the HDR10 and HLG content ensures the Optoma UHD35STx renders vivid 4K UHD content. Optoma HDR tone mapping combined with Dynamic Black technology presents an optimized image with brighter whites, deeper black levels and realistic colors that jump off the screen for an immersive visual experience.

True 4K UHD Resolution

Experience a high-quality home cinema feel with true 4K Ultra HD with 8.3 million distinct addressable on-screen pixels. That’s double the detail compared to 4K Pro UHD.

Eco+

Eco+ technology brings together high contrast, improved lamp life and energy saving features that are easy to use while reducing power consumption.