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iOS 27 Supports All iPhones, Even Seven-Year-Olds
9 Jun
Summary
- iOS 27 maintains support for all iPhones that ran iOS 26.
- Apps in iOS 27 are expected to open up to 30 percent faster.
- Unlike iOS, watchOS 27 dropped support for several older Apple Watch models.

Apple's latest operating system, iOS 27, prioritizes significant enhancements in performance and overall efficiency. This focus has led to a key decision: no iPhones will be excluded from receiving the update.
Consequently, all iPhone models capable of running iOS 26, including the seven-year-old iPhone 11, will be compatible with iOS 27. This extended device support is a notable benefit for users of older iPhones.
While the exact reasons for this extended compatibility are not fully detailed, Apple claims apps in iOS 27 will launch up to 30 percent faster. Optimized CPU scheduling might also contribute to this efficiency.
However, access to the new AI features, such as Apple Intelligence and the enhanced Siri, is restricted to newer models, with the iPhone 15 Pro and Pro Max being the oldest devices to support them.
This approach contrasts with Apple's strategy for watchOS 27. The new watch operating system only supports the Apple Watch Series 10 and newer, the Apple Watch Ultra 2 and newer, and the Apple Watch SE 3, leaving several older models unable to update.