01 Why have "Eyes" become the top priority for switching phones?

Replying to emails on the subway, checking social feeds in bed, scrolling through short videos late at night—in the digital age, smartphone screens are practically glued to our retinas 24 hours a day. Dryness, soreness, and blurred vision are transforming from "minor ailments" into "major burdens." Eye protection is no longer an optional feature, but a baseline requirement for switching phones. Apple's screens are mainly divided into two camps: LCD and OLED. Their dimming logic and flickering performance are worlds apart. Choosing the wrong model can lead to aggravated eye fatigue at best, and a drained wallet at worst.

02 The Last Stand of LCD: iPhone 11

2.1 ◉ The Eye Protection Trump Card — DC Dimming

The iPhone 11 was Apple's last flagship series to feature LCD across the board. It utilizes full-range DC dimming, which means no frequency flickering or strobing. Even during long periods of reading or messaging in low-light environments, eyes are less likely to tire. For those with dry eye syndrome or sensitive eyes, it’s almost a "free pass."

2.2 ◉ Obvious Shortcomings

Contrast and peak brightness are mediocre; navigation maps tend to look "washed out" when used outdoors at noon. Color saturation is a step below OLED, missing that "cinematic feel" when watching high-quality films. When the sun is too bright, the screen is the first to "surrender."

03 OLED Takeover: From iPhone 12 to 16

3.1 ◉ Vividness is a Double-Edged Sword — High Efficiency, High Flickering

Starting with the iPhone 12, the entire lineup switched to OLED. Colors are more intense, and contrast is off the charts. HDR videos and portrait photography look divine. However, at low brightness, it employs 480 Hz PWM (Pulse Width Modulation) dimming. The flickering is visible to the naked eye, often causing dizziness or eye strain for sensitive users.

3.2 ◉ The "Invisible Light Source"

While reports remain clear outdoors and movie buffs enjoy the experience, once night falls, the screen becomes an "invisible light source." Even with eye protection mode turned to the maximum, it cannot block the flickering.

04 iPhone 17: The New Benchmark for Eye Protection

4.1 ◉ "Display Pulse Smoothing" Technology Debuts

For the first time, Apple introduces "DC-like" hybrid dimming to OLED. High-frequency PWM and low-frequency DC take turns, suppressing flickering to levels almost invisible to the human eye. Simultaneously, it has earned the "Eye Comfort Label" certification, officially stamping it as "Low Blue Light, Low Flickering."

4.2 ◉ High Refresh Rate + Eye Protection in One Package

The ProMotion high refresh rate remains silky smooth. Whether browsing WeChat, editing photos, or binge-watching late at night, your eyes no longer "sound the alarm." The iPhone 17 makes "visual feast" and "eye-friendly" synonyms for the first time.

05 Selection Guide at a Glance

Before switching phones, ask yourself: do I want my eyes to suffer today? Use the table below to clarify your needs and spend your money where it matters most. Eye protection and vivid colors are no longer a mutually exclusive choice.