# Hisense PX4 Pro UST Laser Projector Review: Bright Visuals Hindered by Software Quirks

Canonical page: https://savlume.com/items/knk405j05z31vm6d983n1l6p4
Publisher: Savlume
Published on Savlume: 2026-10-12T11:54:18.147Z
Content updated: 2026-10-12T11:56:03.926Z
Source publication time: 2026-10-12T11:00:00.000Z
Offer status: Unverified

Tom's Guide evaluated the Hisense PX4 Pro ultra-short-throw 4K laser projector, which retails for $4,499. Lab testing measured 3,612 ANSI lumens and strong color reproduction, alongside responsive gaming performance with VRR support and low input lag. However, the reviewer found that Vidaa OS suffers from intrusive ads and aggressive Scenario Enhancement processing that automatically engages with the optical iris, causing noticeable color flickering. Unless high-refresh gaming features are essential, buyers may find better overall value in previous-generation models or alternative UST competitors.

## Media review

Tom's Guide describes the PX4 Pro as a bright, capable gaming projector, but says software problems limit the iris’s dark-room benefits and make its higher price harder to justify.

Attribution: Tom’s Guide · Tom's Guide
AI-assisted summary of source text, not a Savlume hands-on test.

- Source-reported strength: The reviewer measured 3,612 ANSI lumens and 98% DCI-P3 coverage.
- Source-reported strength: The reviewer reports responsive gaming, measuring 23ms input lag in gaming mode and 0ms added latency at 1080p/240Hz with VRR.
- Source-reported strength: The reviewer found the built-in speakers provide a wider soundstage than expected from the projector’s size.
- Source-reported limitation: The reviewer says Scenario Enhancement can flicker or shift color and is forced on when the iris is used.
- Source-reported limitation: The reviewer found dark scenes rough in a brightly lit room and recommends dimming the lights for movies.
- Source-reported limitation: The reviewer notes the speakers lack bass depth and VidaaOS has a less-complete app selection than Google TV.

### How bright was the projector in the reviewer’s test?

The reviewer measured 3,612 ANSI lumens, compared with the listed rating of 3,500 lumens.

### How did it perform for gaming?

The reviewer measured 23ms input lag in gaming mode and 0ms added latency at 1080p/240Hz with VRR.

### Does the reviewer recommend relying on its built-in speakers for a home theater?

The reviewer says they work for basic listening but recommends dedicated speakers and a subwoofer or a soundbar for a more potent home-theater setup.
## Evidence and sources

Source report only. Merchant price, availability, seller, and conditions have not been independently confirmed.
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Tom’s Guide: https://www.tomsguide.com/tvs/4k-tvs/hisense-px4-pro-review-perhaps-just-one-software-update-away-from-true-splendor

Purchase destination: https://www.amazon.com/dp/B0H6DDBCNQ?th=1&psc=1

AI-assisted summary of cited source material. Not a hands-on review. Prices and availability can change.