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BenQ TK700STi vs Optoma UHD35 for 4K Gaming

The BenQ TK700STi and Optoma UHD35 are designed for players who want a much larger image than a television can provide. Both use pixel-shifting DLP technology to display a 4K UHD image, support HDR sources and offer fast gaming modes for consoles and PCs. Their similarities make the choice look simple, but the differences in throw distance, brightness and room suitability matter greatly.

For Australian buyers, the right model depends on where the projector will live. A compact Sydney apartment, a dedicated cinema room in Melbourne or a family lounge in Brisbane can produce very different results. The BenQ is a short-throw gaming projector made for closer placement, while the Optoma is a brighter standard-throw model that generally needs more space between the projector and screen.

Image Quality And Brightness

The Optoma UHD35 has the higher quoted brightness rating, at up to 3,600 ANSI lumens, compared with approximately 3,000 ANSI lumens for the BenQ TK700STi. That extra output can help in a lounge with some daylight, although neither projector will look its best with strong sunlight falling directly across the screen. Blackout curtains remain valuable for evening gaming and HDR films.

Both projectors produce a sharp 4K-style picture through pixel shifting rather than using a native 4K imaging chip. Fine details in game menus, textures and subtitles look crisp at sensible viewing distances, particularly with a good screen. The BenQ’s image processing is tuned strongly towards gaming, while the Optoma offers an energetic, bright presentation that works well for sport, streaming and general console use.

HDR performance is practical rather than spectacular. Projectors cannot reach the intense highlights of a premium OLED television, and HDR games may need a little console or in-game brightness adjustment. The TK700STi and UHD35 both benefit from a neutral screen and a room with controlled lighting. For cricket, AFL or movie nights, the Optoma’s extra brightness can be useful; for a darker gaming den, the gap is less important.

Gaming Performance And Connectivity

Both models offer a 4K resolution mode at 60Hz with low input lag, making them suitable for PlayStation 5, Xbox Series X and modern gaming PCs. They also support higher refresh rates at lower resolutions, including 1080p at 120Hz. The Optoma goes further with a 1080p 240Hz mode for compatible PC hardware, although the benefit depends on the game, graphics card and whether the player can consistently reach those frame rates.

The BenQ TK700STi is particularly appealing for console-focused households. Its game modes reduce processing delay and provide picture presets intended for RPG, FPS and sports titles. A reported input lag of around 16.7ms at 4K/60 and roughly 8.3ms at 1080p/120 is responsive for most players. Competitive esports users may still prefer a high-refresh gaming monitor, but the BenQ delivers an impressively large image for casual and serious living-room play.

Neither projector should be treated as a full HDMI 2.1 gaming display. They are best understood as 4K/60 projectors with fast 1080p options, rather than devices that deliver 4K at 120Hz. Both provide HDMI 2.0 connectivity, and the number and position of ports should be checked before installation if you plan to connect a console, soundbar, streaming stick and PC.

Throw Distance And Room Placement

The biggest practical difference is placement. The BenQ TK700STi has a short-throw ratio of roughly 0.9–1.08, allowing it to create a 100-inch image from around 1.5 metres away. Exact measurements vary with zoom and screen size, but this design is well suited to a coffee table, low cabinet or shelf near the front wall. It also reduces the chance of someone walking through the beam during a tense multiplayer match.

The Optoma UHD35 uses a longer throw ratio of approximately 1.5–1.66. A 100-inch picture generally requires close to three metres of distance, so it is better suited to a deeper lounge, a ceiling mount or a dedicated media room. In an Adelaide or Perth home with a generous family room, that may be easy to arrange. In a narrow inner-city rental, the BenQ can be far easier to position.

Both models provide a modest optical zoom and vertical keystone correction, but digital correction can slightly reduce image quality. A fixed, level installation with the projector centred against the screen is preferable. Measure the room before buying, including the projector’s rear cable clearance and the seating position. Australian homes with open-plan living areas may also need to account for ceiling fans, pendant lights and furniture that cannot be moved permanently.

Smart Features, Sound And Everyday Use

The TK700STi has an Android TV-based smart experience through its included streaming dongle, giving users access to common apps when the relevant services are available in their region. This can make it convenient for Netflix, YouTube and other streaming platforms, although app support and certification can change. For Australian households, a separate Apple TV, Google TV streamer or Fetch box may still provide a more consistent interface.

The Optoma UHD35 is more traditional and is generally paired with an external streaming device. That approach adds another HDMI connection but can be preferable for buyers who already use a preferred streaming platform. Neither projector’s built-in speaker should replace a soundbar or AV receiver. The integrated audio is useful for a quick gaming session, yet cinematic bass, crowd noise during an NRL match and positional game audio all benefit from external speakers.

Fan noise is another consideration. Gaming projectors use powerful lamps or laser-free light engines that generate heat, so their cooling systems are audible. Place the unit where ventilation is unobstructed and avoid enclosing it in a tight cabinet. Check Australian stock, warranty terms and power compatibility through a local retailer rather than relying on an overseas import; GST, return handling and warranty support can significantly affect the real cost.

Which Projector Fits Your Setup

The BenQ is the stronger all-round choice when the projector must sit close to the wall, when fast console play is the priority or when the room is relatively compact. Its short-throw design offers flexibility in apartments and multi-purpose lounges, while its gaming presets and included smart platform make it straightforward to use. The image may be less forceful than the Optoma’s in daytime conditions, but curtains and sensible screen placement narrow the difference.

The Optoma makes more sense when brightness, screen size and high-refresh PC gaming are central priorities. Its standard throw works well in a dedicated room, and its 3,600-lumen rating gives it useful headroom for sport and casual viewing before sunset. The longer placement distance is the main limitation, especially for renters or households that cannot ceiling-mount a projector.

Before comparing discounts, use projector buying guides to check screen size, room dimensions and connection requirements together. A cheaper projector that cannot be placed correctly will be a poor bargain, while a model that fits the room can transform weekly gaming sessions into a more immersive experience.

Quick Buying Checks

For the BenQ TK700STi, prioritise:

For the Optoma UHD35, prioritise:

The final choice between these 4K gaming projectors should follow the room rather than the specification sheet. Choose the BenQ TK700STi for convenient short-throw installation and console-friendly performance. Choose the Optoma UHD35 when you have the distance for a standard throw and want extra brightness or 240Hz PC capability. Check Australian pricing, stock and warranty coverage, then match the projector with a suitable screen and sound system for the best result.