Given how many personal information we store on our smartphone, I would not be surprised to demand demand Secrecy screen guard An all time is on high. From bank statements to email credentials, photos and videos, our digital footprint needs to be protected and safe, especially with stinging eyes of strangers, has never been more necessary.
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I gave an attempt to privacy-proclaimed accessory A version from ESR On my Galaxy S25 Ultra. The installation process was similar to any other modern-day screen guard, with a guide tray that you set your Samsung phone for near-perfect placement. The sheet of tempered glass focused on my phone, and it was easy to scrub some air bubbles trapped below. Things were closed for a great start.
Works as intended
The ESR screen protector acted exactly as the intention: when staring at S25 Ultra from the Center, the performance still looked bright, sharp and vibrant. When I took my head a little left or right, the image quickly faded in black, as if the phone screen was not on.
The two-way privacy filter acted like magic, and for the first time in a long time, I felt comfortable to respond to the work email and exchange personal messages on the metro of New York City. Even if a stranger wanted to peek, they could not.
But things took a turn
When I was catching Laks Highlights, things took a turn – and the performance suddenly slowed down itself. Certainly, my brightness setting is usually set on the auto, but until I am going between two different light environment, which I was not at that time, the change in brightness should never be as dramatic as it was.
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My first perception was that perhaps my shadow was put on the phone’s light sensor, causing it to slow down the screen. But it was not so. Instead, Tinning from the screen guard somehow inspired Android phone to think that the environment was really much deeper than it was. This happened during the first day of my test, so I eventually surrendered to the physics of light and closed the adaptive brightness setting.
The S25 ultra, installed with a privacy screen guard, is set at less than 50% when placed in front of a window.
Kerry Van/ZDDNet
The second issue with the privacy screen guard was that its thickness made it difficult to register the fingers. When the S25 is combined with ultrasonic fingerprint sensor of ultra, which uses 3D depth mapping to scan your finger, the phone often requests a more powerful press or other attempt.
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I use the ultrasonic fingerprint sensor of S25 Ultra compared to the average person, as it is necessary to sign most of my individual services, octa verification for the work app, and of course, to unlock the device.
Certainly, re -registering my fingerprints helped improve accuracy and reliability to an extent, but is not enough to make the experience of unlocking things burden. It reached the point where I rely more on the face identity of the phone to access things, which is not always efficient.
Going back to standard
This is to say, I have dug a more standard, thin plastic film since then dug the privacy screen guard. While I can not publicly secret about the use of my phone, I will take a scratch-resistant, viewer-friendly experience on that privilege every day of the week.
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The article was originally published on 3 February 2025, and was updated on 12 May 2025.
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