The iPhone 4 features a Retina display, but its hardware struggles with modern 720p or 1080p compression algorithms. Manually set video playback to 240p or 360p via the video player gear icon for smooth playback.
This creates an icon on your home screen that functions like a dedicated app. 3. Alternative Apps & Fixes
Google no longer supports embedded webviews older than 2020. Fix: Use an App Password (if you have 2FA enabled) or accept that you will use YouTube in a "signed-out" state. For signed-out use, Method 1 still works fine.
: These community-made tweaks help "fix" the broken API connections in old YouTube versions like 1.2.1 or 11.19.7.
Once the mobile site loads, tap the button (the square icon with an upward arrow at the bottom of the screen). Scroll through the options and select Add to Home Screen . Name the shortcut "YouTube" and tap Add .
If you head to the App Store on an iPhone 4 today and search for YouTube, you will likely be met with disappointment. The modern YouTube application requires hardware and software capabilities that the A4 chip and iOS 7 simply cannot provide.
Keep in mind that using an older device and iOS version may pose security risks, as you might not receive the latest security updates.
Download the YouTube mobile app - iPhone & iPad - Google Help