ViewSonic LX700-4K vs ViewSonic PX701-4K

Laser Convenience or a Traditional Gaming Lamp? The LX700-4K suits someone who wants a laser projector that fits closer to the screen and skips conventional lamp replacements. The PX701-4K needs more room depth and brings a replacement-lamp routine; you'll supply your own streaming device. Start with placement and upkeep, not model-name badges. Their gaming and brightness marketing requires more care than their shared 4K branding suggests.

The choice that matters

Choose the laser ViewSonic for less lamp maintenance and more compact room placement.

Choose the lamp ViewSonic when its longer throw and simpler setup suit you.

At a glance

The room determines whether the shorter laser lens matters

The laser LX700-4K and lamp PX701-4K both aim to put a big 4K picture on a wall or screen. But they require different positions. ViewSonic publishes a 1.06–1.45 throw ratio for the standard LX700-4K, compared with 1.5–1.65 for the PX701-4K.

For a 100-inch 16:9 image, about 87 inches wide, that works out to roughly 7.7–10.5 feet between LX700's lens and screen, versus about 10.9–12.0 feet for PX701. These are planning estimates, not mount-to-wall instructions. You must still allow for chassis depth, image offset, optical zoom and ventilation.

In an apartment where the only appropriate shelf is eight feet from the wall, the PX701 may simply be the wrong optical choice. The LX700 can potentially work there, provided the specific screen size and mounting limits agree. In a deeper room with a permanent ceiling mount far behind the sofa, the PX701's longer throw may be no inconvenience.

Do not confuse shorter conventional throw with ultra-short throw. Neither model is designed to sit inches below a screen like the Hisense PX3-PRO. If the only available space is a media console against the wall, choose a different projector class rather than trying to force either model into the arrangement.

What you gain with the laser—and what you don't

The biggest everyday difference is maintenance. The LX700-4K uses laser, so you don't plan for ordinary replacement lamps. If you watch or game frequently, that is one less consumable to track—though fans, dust and electronics still need care.

The PX701-4K uses a conventional 203W lamp. ViewSonic rates it for about 6,000 hours in Normal and up to 20,000 hours in Dynamic Eco. The longer number doesn't mean you'll enjoy maximum brightness for the same duration. Check the cost and availability of a genuine replacement lamp before choosing it.

Laser isn't automatically the better movie picture, the quieter projector or a longer warranty. If your room fits the PX701's longer throw and you're comfortable with lamp upkeep, it remains a reasonable option. Both still need wall power and ventilation; neither is a battery-powered travel projector.

Why the brightness ranking is intentionally unresolved

ViewSonic's structured US specifications and authorized dealer B&H identify the standard LX700-4K / VS19701 at 3,500 ANSI lumens. A separate ViewSonic feature statement still says 4,000. That's a real conflict in the brand's own wording—not a reason to average the numbers or quietly pick the bigger one.

The PX701-4K has a separate manufacturer rating of 3,200 ANSI lumens. None of these figures tells us how the two projectors would compare in the same calibrated movie mode. We're keeping the conflicting LX700 figure visible, but we aren't declaring a numerical brightness winner.

For the buyer, there is a simpler test: how much daylight reaches the screen, and how large do you plan to make the picture? Close the shades, choose a practical image size and consider whether a projector suits your daytime viewing at all. A manufacturer lumen headline cannot fix sunlight hitting the wall.

Contrast claims need context, too. A projector's advertised ratio doesn't guarantee deep-looking shadows in a bright room. Look for exact-model, matched-mode measurements if picture brightness or contrast will decide the purchase.

The 240Hz story has conditions on both sides

Both projectors can appeal to gamers, but 240Hz doesn't mean 4K at 240 frames per second. On the LX700-4K, ViewSonic's timing chart distinguishes 3840×2160 up to 60Hz, 1920×1080 up to 240Hz, and 2560×1440 up to 120Hz. Those are different input choices, not one all-in-one maximum setting.

The PX701-4K has another wrinkle. ViewSonic promotes a 4.2 ms high-refresh lag figure, but its technical sheet separately lists 37 ms without identifying the matching mode. RTINGS' exact-model testing reports quicker input response at 1080p120/240 with Ultra Fast Input than in slower modes. That supports the importance of settings; it does not tell us which mode produced ViewSonic's unexplained 37 ms entry.

If you're playing cinematic games at 4K60, compare performance in that mode. If you mainly play fast PC titles at 1080p, look for same-mode independent results there instead. A 60fps game doesn't magically create 240 unique frames on a 240Hz-compatible input.

Neither receives an overall low-lag winner label from these mismatched claims. Check your console or PC output, HDMI cables, any AV receiver and the image mode you'll actually use. The experience depends on the complete setup.

Daily viewing and the rest of the setup

Think beyond the projector box. The PX701-4K needs an external streaming source such as a stick, console or computer. Check the LX700-4K's exact US input options and included accessories before assuming it has the same setup as a smart-TV projector.

Sound matters when the picture is this big. The PX701's built-in 10W speaker may handle basic playback, but a soundbar or external speakers could be a better fit for movie night. Check how the LX700-4K connects to your chosen audio system rather than assuming every receiver feature is available.

Placement also changes how you experience fan noise. A projector near the couch may be more noticeable than one mounted farther away, even without a reliable head-to-head sound test.

Both can produce a detailed on-screen 4K UHD picture, but that label doesn't certify a native 8.3-million-micromirror DLP chip. What you'll notice at home also depends on focus, the image mode, room light and source quality.

Who should choose each?

Choose ViewSonic LX700-4K when: a laser light source is worth prioritizing for your usage, its shorter standard throw fits the room, and you want documented 4K60 plus high-refresh lower-resolution input paths. The selected unit is standard VS19701, not the separate LX700-4K RGB model.

Choose ViewSonic PX701-4K when: a longer-throw projector fits the planned screen, you accept ordinary replacement-lamp maintenance and you prefer a traditional external-source entertainment arrangement. It must be the exact PX701-4K rather than another PX701 family model.

Choose neither when: the room requires true ultra-short throw, you need battery power, or your purchase depends on a certified brightness/latency ranking that neither current source record establishes.

Before ordering

Draw a quick plan showing the lens, screen and furniture. The standard LX700-4K VS19701 needs a different throw position from the longer-throw PX701-4K; the separate LX700-4K RGB isn't interchangeable.

For gaming, compare test results at the actual resolution and refresh you use. PX701's 4.2ms headline and unexplained 37ms entry aren't measurements of a confirmed common mode. For PX701 also check genuine replacement-lamp supply.

ViewSonic's US pages and B&H's standard non-RGB LX700 listing are starting points, not a promise about today's stock. Confirm price, condition, accessories and warranty at checkout.

PIQSY conclusion

Choose the LX700-4K if the shorter lens distance fits your room and you want laser lighting without ordinary lamp replacement. Choose the PX701-4K when a longer-throw setup works and you're comfortable budgeting for lamps.

Don't buy either because of a misleading numbers contest. ViewSonic's structured 3,500 ANSI rating for standard LX700-4K / VS19701 matches B&H, but another feature line says 4,000. PX701's advertised 4.2ms and unexplained 37ms figures don't establish a universal gaming-lag winner; RTINGS' exact-model tests highlight the importance of high-refresh 1080p settings.

Before buying: Measure the room and check the exact US model, seller condition and warranty. The buyer advantage is a practical installation and maintenance fit—not an unsupported measured brightness or speed victory.