Understanding True Tone: How it Works

Understanding True Tone: How it Works

In 2016, Apple introduced True Tone, an innovation in display technology on its iPad Pro. It has been added to devices including iPhones from iPhone 8, iPhone X, and later models. In this article, we'll explore the True Tone in-depth, explaining its purpose, benefits, and the significant impact it has on your overall iPhone experience.

Understanding the True Tone

What is True Tone?

True Tone's purpose is to make your iPhone screen feel more natural and comfortable for your eyes. This technology achieves this by cleverly adjusting the screen's white balance based on the surrounding lighting conditions.

How Does It Work?

Devices equipped with True Tone technology come with sensors that measure ambient light color and brightness. Using this information, the device automatically adjusts the display to ensure that the white point and brightness are corrected according to the ambient light. This adjustment results in a more comfortable viewing experience for the user, as the adjusted white point feels more natural to the eyes. Moreover, True Tone technology makes devices more readable in direct sunlight, which significantly improves their usability.

True Tone Benefits

Enhanced Eye Comfort

One of True Tone's standout advantages is its exceptional ability to reduce eye strain. By adapting to the surrounding light, it transforms the display's colors into a more pleasing and readable format, making those long hours of smartphone use significantly easier on your eyes.

Elevated Viewing Experience

True Tone doesn't just pamper your eyes; it elevates your entire viewing experience. Whether you're engrossed in an e-book, scrolling the web, or admiring your photos, this technology's adaptability ensures that you see the content exactly as the creator intended.

Better Color Accuracy

For creatives and professionals, it is essential to ensure that the colors displayed on their devices are consistent and accurate. In the case of MacBook and iPhone equipped with True Tone technology, users can enjoy a natural viewing experience that remains unaffected by ambient light.

How to Enable True Tone

  • Open the "Settings" app.
  • Scroll down and tap on "Display & Brightness."
  • Toggle the "True Tone" switch.

What if my iPhone’s true tone function is lost?

There are 2 types of reasons for true tone loss.

Software Problem

If your phone’s true tone disappears, the most likely reason is an iOS system update. In such cases, the solution is relatively simple: just re-enable the feature in your settings.

Hardware Problem

The other reason for the true tone function and the auto-brightness function not working properly. In some cases, it is caused by a damaged, malfunctioning, or blocked sensor. Ensure that nothing obstructs the sensor and that your screen isn't covered with smudges or fingerprints. Except for REPART, several aftermarket screens do not support true tone.

Is True Tone Right for You?

Personal Preferences

The decision to embrace True Tone largely hinges on personal preference. Some users may favor warmer or cooler tones in different lighting conditions, and True Tone may not be the ideal setting for everyone.

Specialized Use Cases

Professionals who work with images and photographs should know True Tone's potential limitations. Depending on their work, it may slightly hinder their ability to view their creations in precise detail.

repart screen true tone functions


Apple's True Tone function represents a remarkable addition to the iPhone's arsenal of features. It enriches the user experience by effortlessly adapting the screen's color temperature to the surrounding environment. This reduces eye strain and elevates color accuracy, making iPhone usage more visually pleasing and comfortable. It's not just technology; it's a digital upgrade for your senses.

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