Xiaomi 18 Pro privacy screen: what it shows vs. Samsung
Ahead of tomorrow's China launch, Xiaomi confirmed the Xiaomi 18 Pro privacy screen will work as a hardware feature built into the display panel itself, and the teaser details the company released yesterday suggest it does a few things Samsung hasn't publicly shown on the Galaxy S26 Ultra (Android Central, yesterday).
That confirmation covers a narrow slice of Xiaomi's lineup. The feature is confirmed only for the Xiaomi 18 Pro and 18 Pro Max, launching in China on September 23 (GSMArena, yesterday; Mint, yesterday). Before that launch, the evidence available is limited to Xiaomi's teaser video and the company's own claims; nothing in the reporting cited here confirms global availability, pricing, or a release timeline outside China.
The finding worth paying attention to is more specific than "Xiaomi copied Samsung's homework." Xiaomi's teaser demonstrates privacy protection applied to a floating app window, split-screen mode, and individual lock-screen notifications, three scenarios that haven't been publicly demonstrated on Samsung's Galaxy S26 Ultra Privacy Display, even though Samsung's version reportedly already supports app-specific and region-specific privacy controls (9to5Google, yesterday). That's a real but narrow edge: features Xiaomi has shown versus features Samsung hasn't shown publicly, not proof that Xiaomi's underlying technology outperforms Samsung's. The evidence currently supports a narrower conclusion than "Xiaomi wins," so it's worth walking through what's confirmed, what's still a company claim dressed up as a demo, and what needs independent testing before either phone's privacy mode earns trust for anything genuinely sensitive.
What the Xiaomi 18 Pro smart privacy display has shown so far
Xiaomi's own Weibo teaser confirms the smart privacy display is built into the display panel itself, not a software filter layered on top or an external screen protector (Xiaomi Weibo, yesterday; Mint, yesterday). That's the same hardware-based phone privacy screen approach Samsung uses on the Galaxy S26 Ultra: altering the light the panel emits rather than coating the glass, according to reporting on Xiaomi's teaser (9to5Google, yesterday). Whether that approach protects front-on brightness as well as Xiaomi claims is still untested outside the teaser clip.
Xiaomi says side-viewing brightness drops to roughly 1% of front-facing output once someone looks from beyond a 60-degree angle, while the person holding the phone sees no change at all (Android Central, yesterday). That's a specific number pulled straight from Xiaomi's own materials, not something an independent teardown or lab test has verified yet.
Xiaomi's Weibo post goes further, claiming app-level customization, adjustable protected regions on the screen, personalized privacy rules, and voice-based setup through Super XiaoAi (Xiaomi Weibo, yesterday). None of that has been demonstrated outside the teaser clip yet, and each claim is worth treating as unverified until reviewers get hands-on time with the phone.
Xiaomi 18 Pro vs. Samsung Galaxy S26 Ultra privacy screen: shared ground and new demonstrations
Samsung's Privacy Display gave the Galaxy S26 Ultra a genuine standout feature this year, and 9to5Google describes it as well received despite some trade-offs (9to5Google, yesterday).
Reporting on Xiaomi's teaser notes that, similar to Samsung, the feature can apply to specific apps or specific portions of the screen instead of acting as a blunt all-or-nothing toggle. Per-app or per-region privacy control isn't something Xiaomi invented here (9to5Google, yesterday). That's the baseline both companies share.
What goes beyond that baseline is specific: Xiaomi's teaser shows the privacy mode working on a floating app window, in split-screen, and on individual lock-screen notifications, three use cases that public Samsung demonstrations haven't shown (9to5Google, yesterday; Android Central, yesterday). If Xiaomi supports those controls in ordinary third-party apps rather than only its own, they could genuinely help someone checking a banking app in a floating window on a crowded train, or reading a message preview on the lock screen with a stranger nearby. That's a hypothetical benefit based on what the teaser demonstrates, not a tested outcome.
One caveat keeps this from being a clean win for Xiaomi: the teaser and the reporting reviewed here don't establish whether the Galaxy S26 Ultra can or can't handle those same three scenarios. Samsung simply hasn't shown them publicly. Absence of a demo isn't proof of absence of the capability. The accurate claim is that Xiaomi has shown features Samsung hasn't shown, not that Xiaomi's technology is fundamentally more capable.
What buyers should verify before trusting either privacy screen
A handful of specific questions will separate a genuinely useful feature from an impressive teaser clip. Can protected and unprotected regions of the screen display side by side without visible artifacts at the boundary? Does lock-screen notification privacy work with third-party apps, or only Xiaomi's own notification stack? And does Xiaomi 18 Pro privacy performance at different viewing angles actually hold up under normal indoor or outdoor lighting, rather than the controlled conditions of a teaser video?
Xiaomi also claims the 18 Pro series runs on a new M11 panel with peak brightness up to 4,000 nits and a 20% efficiency gain over the prior generation (GSMArena, yesterday; Mint, yesterday). Mint reports the same panel is engineered to match 2K-level clarity while drawing power closer to a 1.5K panel (Mint, yesterday). None of those figures were measured with privacy mode switched on, so they say nothing about how the phone behaves once the feature is actually doing its job. Xiaomi's demonstrated floating-window, split-screen, and per-notification privacy control remains the strongest evidence so far for a usability edge, but it's a teaser video measured against Samsung capability that simply hasn't been documented publicly, not a controlled side-by-side comparison.
The feature stays confirmed only for the China-launching Xiaomi 18 Pro and 18 Pro Max, with no global rollout confirmed in the reporting available so far. Current Galaxy S26 Ultra owners don't need to do anything differently; the teaser does not change what Samsung has publicly shown about the Galaxy S26 Ultra. Prospective Xiaomi buyers should wait for independent hands-on testing of privacy mode across real lighting and viewing angles, along with confirmation of any release beyond China, before assuming the phone or the feature is something they can actually buy.
Anyone considering either device for sensitive information, banking apps, private messages, or financial data should hold off on trusting either company's marketing claims until reviewers verify effectiveness at common shoulder-surfing angles in ordinary conditions, not just in a staged demo. Watch for hands-on coverage after the September 23 launch, and treat Xiaomi's Super XiaoAi voice controls and adjustable privacy regions as unverified until someone outside the company gets to test them.
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