Which home projector should I shortlist for native 4K or 4K UHD viewing?

The advantages and the compromises

The key details

Model covered

TK850

Image format

4K UHD XPR output from a 1080p DMD

Rated light output

3000 ANSI lumens

Placement

Conventional throw, 1.13–1.47:1

ANSI ratings appear only when a model source explicitly gives ANSI lumens. Other manufacturer light-output figures remain labeled by their original basis.

Measure throw distance before falling for the feature list

BenQ lists a 1.13–1.47:1 throw ratio and 1.3× optical zoom. That range gives some flexibility, but it remains a conventional placement system rather than a projector for a cabinet directly below the screen. Use the actual image width and lens-distance range to work out whether a shelf or ceiling mount fits the room. The projector also has a documented 10% vertical lens shift, which can assist installation without replacing careful placement. It does not offer unlimited image movement, and the source does not support describing it as ultra-short-throw.

The ANSI rating is useful, with the normal rating caveat

BenQ lists 3000 ANSI lumens, a manufacturer-rated number with an explicit measurement basis. This is more directly comparable to the Capsule II's 200 ANSI lumens or LG HU70LAB's up-to-1500 ANSI figure than Epson or Hisense output values that use another or unspecified basis. A rated maximum still does not tell you how a particular lamp, image mode, screen, or used unit will perform. Brightness depends on settings and screen size. Treat the figure as a comparison fact, not a promise that daytime viewing will work in every room.

4K UHD output and native imaging resolution are different

BenQ's product page calls the output 4K UHD, while its official quick guide explains that the 3840 × 2160 image is created with XPR pixel displacement from a 1080p DMD. That gives the buyer a clear description of the displayed 4K output without claiming a native 4K chip. The questionnaire therefore records 1920 native horizontal pixels for a source-specific resolution criterion, while the product summary makes the UHD output visible. If a native 4K panel is a firm requirement, compare the JVC DLA-NX5 instead of treating all “4K” labels as identical.

A lamp system asks for ownership questions

BenQ lists normal, ECO, and SmartEco lamp-life ratings, and the TK850 uses a lamp-based DLP system. Those ratings describe a new lamp under specified modes; they do not establish remaining hours, color, or uniformity on an individual renewed projector. Ask the seller for lamp hours and check that the image is sharp across the screen, the cooling system works, and the remote and input ports are present. The optional 3D glasses and ceiling mount are separate accessories in BenQ's materials, so do not assume they come with a particular listing.

Useful connections, with a gaming caveat

The official specification page lists two HDMI 2.0b inputs, two USB-A ports, a pair of 5-watt speakers, and 83.34 milliseconds of input lag at both 1080p60 and 4K60. Those details may suit a mixed-use home room with a media player and a game console, but the lag number is a manufacturer specification rather than a complete gaming evaluation. Picture response, motion, room light, and personal preference are not settled by that number. Connect external audio if the built-in speakers do not meet the room's needs.

Who should compare it with the rest of the shortlist

The TK850 fits someone with enough projection distance who values an ANSI-labeled output figure and wants pixel-shifted 4K UHD video. The LS500 or Hisense PX1-PRO are the close-placement alternatives, with different lumen bases and source packages. The JVC DLA-NX5 has a native 4K D-ILA device and motorized lens controls but a lower listed light output. This is a fit comparison based on manufacturer specifications and room geometry. The historical candidate's renewed condition is unverified, so inspect the exact unit before purchase.

How the alternatives change the decision

The Epson LS500 and Hisense PX1-PRO are ultra-short-throw home-cinema alternatives. The JVC DLA-NX5 is the native-4K choice in this batch, with a different brightness rating and a more involved installation.

Before you decide

The advantages and the compromises

The key details

Model covered

DLA-NX5

Image format

Native 4096 × 2160 D-ILA

Rated light output

1800 lumens; ANSI basis not specified

Placement

Conventional installation; motorized lens shift

ANSI ratings appear only when a model source explicitly gives ANSI lumens. Other manufacturer light-output figures remain labeled by their original basis.

Native 4K is the defining reason to consider it

JVC identifies three 0.69-inch D-ILA devices with a native 4096 × 2160 resolution. That makes the NX5 distinct from models whose 4K UHD image is created by pixel displacement from a lower-resolution DMD, such as the BenQ TK850 or LG HU70LAB. It is a useful distinction only if native imaging resolution matters to the buyer; it does not by itself establish a subjective picture-quality ranking. For a detailed home theater where 4K sources are central, the published device specification gives the NX5 a clear place in the comparison.

Lens shift turns room planning into a real advantage

The NX5 uses a motorized 2× lens and JVC lists substantial vertical and horizontal lens shift. Those controls offer an installer more choices about where the projector can sit while the image stays aligned, which can be valuable in a dedicated room with seating, beams, or a fixed screen. They do not remove the need to check throw distance, lens memory, mount clearance, and screen dimensions. A projector with this level of adjustment still belongs in a planned installation rather than an improvised tabletop setup.

Keep the brightness rating in its stated units

JVC lists 1800 lumens and a 40,000:1 native contrast ratio, with dynamic contrast stated separately. The page does not label the output figure as ANSI, so the matching profile leaves the ANSI-lumen attribute unknown. That keeps the comparison fair against products whose manufacturers explicitly use ANSI, including the BenQ TK850. Brightness requirements should be checked against the actual screen size, gain, room light, and image mode. A published model rating cannot report the light output of an individual used projector or the condition of its optical path.

HDR processing and connections serve a theater source chain

JVC describes HDR10 Auto Tone Mapping and HLG compatibility, along with two HDMI inputs that support current-for-the-model 18 Gbps signals and HDCP 2.2. Those features give the NX5 a documented way to handle HDR10 and compatible 4K sources. The model also uses an NSH lamp rated for about 4500 hours in low mode. A lamp-hour counter, if present, is only one part of a used-unit inspection; check focus across the image, dust, panel convergence, fans, remote, and HDMI handshakes with your own source equipment.

This is a used-installation decision

JVC marks the NX5 archived, and the product link here searches the exact model name rather than asserting a current offer. Ask for the projector's serial/model plate, lamp hours, lens and mount accessories, service history, and a full-resolution image sample before considering a specific unit. The 1800-lumen rating and long lamp-life estimate describe the model, not the years of use or remaining life of that unit.

When native resolution outweighs convenience

Choose the NX5 if native 4K and flexible lens installation are firm priorities and a conventional projector can be accommodated. If the room requires close-to-wall placement, the Hisense PX1-PRO and Epson LS500 are the relevant UST alternatives, though neither is described here as having native 4K imaging. If a manufacturer-labeled ANSI output figure matters more, compare the BenQ TK850 and accept its XPR approach. This is a model-fit recommendation based on source specifications, not a claim that the NX5 has been viewed or measured by this guide.

How the alternatives change the decision

The BenQ TK850 produces 4K UHD with XPR and lists 3000 ANSI lumens in a conventional smaller installation. The Hisense PX1-PRO and Epson LS500 suit a close-to-wall setup but are not identified here as native 4K imaging devices.

Before you decide

The advantages and the compromises

The key details

Model covered

HU70LAB

Image format

4K UHD XPR output; native chip resolution not stated here

Rated light output

Up to 1500 ANSI lumens

Placement

Conventional throw, 1.2–1.5:1; 1.25× zoom

ANSI ratings appear only when a model source explicitly gives ANSI lumens. Other manufacturer light-output figures remain labeled by their original basis.

A conventional home-theater layout

LG lists a 1.2–1.5 throw ratio and 1.25× zoom for the HU70LAB family. That puts it in a conventional room layout rather than the near-wall category occupied by the Hisense PX1-PRO and Epson LS500. Check the screen width against the projector distance before buying, and allow a stable shelf or ceiling-mount position. LG gives a 60–140 inch image range in the family specifications, but the usable setup depends on the exact distance and room. The zoom provides some placement latitude; it does not replace a measurement.

Separate 4K UHD output from a native 4K chip

LG identifies 4K UHD output at 3840 × 2160 and describes XPR technology using Texas Instruments DLP. The cited model page does not give the native horizontal pixel count of the underlying imaging device, so the finder leaves that field unknown. This avoids suggesting that the HU70LAB uses the same native 4096 × 2160 D-ILA imaging devices documented for the JVC DLA-NX5. Both may receive or display 4K material, but the underlying resolution mechanism is a separate buying attribute. Choose based on the distinction that matters to your source and room.

Brightness has an ANSI label, with a ceiling

LG lists up to 1500 ANSI lumens. That measurement label permits a more direct basis for comparison with the BenQ TK850's 3000 ANSI-lumen rating than with Epson models whose color and white figures use other methods. The HU70LAB's listed rating still does not predict the picture on a particular screen or the output of a used unit. Room light, screen size, image mode, and optical condition matter. For a dedicated dark room, its rated output may fit the plan; for bright rooms or very large images, compare a higher-output option and the screen requirements carefully.

LED and webOS shape the ownership routine

LG specifies a four-channel LED light source with a family-rated life up to 30,000 hours, and webOS 4.5 appears in the saved model profile. That combination avoids the ordinary lamp-replacement schedule of the BenQ TK850 or JVC DLA-NX5, while keeping streaming apps integrated in the original platform. A long rated light-source life is not a warranty for an old unit or proof of remaining hours. App versions and streaming services may also change. Before purchase, test the platform, remote, network connection, and HDMI inputs on the exact projector.

A well-integrated setup still needs external planning

The HU70LAB lists two HDMI 2.0 ports, USB-A, USB-C, Ethernet, and 3-watt stereo speakers. The source list can support a home-theater chain with an external player or audio system, but it does not promise that every current streaming app remains available on webOS 4.5. If your system depends on a particular service, confirm compatibility before making the projector the only playback device. Check whether the exact offer includes the remote, power cable, and any original accessories, and inspect image focus and uniformity across the screen before accepting a used unit.

The best match depends on placement and detail priorities

Choose the HU70LAB if a conventional throw distance, a documented ANSI rating, LED illumination, and an integrated platform form the combination you want. The LS500 or PX1-PRO move the projector close to the wall and use laser light, while the JVC NX5 is the native-4K choice with a different installation and output basis. These are not quality rankings; they highlight separate requirements. The historical exact candidate ASIN was not verified as a current offer, so this page links to an exact-model search and does not make a stock or price claim.

How the alternatives change the decision

The BenQ TK850 offers an ANSI-labeled 3000-lumen rating and XPR UHD output in a lamp-based conventional-throw design. The Epson LS500 and Hisense PX1-PRO are UST models for a room where the projector must sit close to the screen.

Before you decide