The iPhone 6 runs the iOS 8 system, while the Apple 6s is equipped with the iOS 9 system. Compared with iOS 8, iOS 9 has improved in terms of performance optimization, security improvement and new features. For example, iOS 9 introduces new features such as spotlight search enhancement, news application, and low power mode.
Due to the use of the A9 chip in the Apple 6s, the processing speed has been significantly improved compared to the A8 chip in the Apple 6, making it smoother when running large applications or games. At the same time, Apple 6s supports more modern application features, such as 3D touch functions, which provides users with more interactive methods and quick operation options.
Although the rear cameras of iPhone 6 and iPhone 6s both have 12 million pixels, Apple 6s has been upgraded in terms of video recording quality, performance in low-light environments and image processing algorithms. The iPhone 6s supports 4k video recording, while the iPhone 6 is limited to 1080p HD video. In addition, the live photos function of Apple 6s also increases the fun and interactivity of photos.
Although the Apple 6s has been upgraded in terms of hardware, its battery capacity has not been significantly increased due to a more powerful processor and higher resolution screen. Therefore, in daily use, the battery life of Apple 6s may be slightly inferior to that of Apple 6. However, Apple 6s supports faster charging technology, which can reduce charging waiting time.
Apple 6s has also been enhanced in terms of security, such as adding touch ID fingerprint recognition function (if the device is equipped with this function). Apple 6 also supports Touch ID, but in terms of some newer security features and encryption technologies, Apple 6s has certain advantages.