The basic operations of an iPhone include calling, texting, taking photos and videos, app functions and Internet access. These basic features are the same across all iPhone models, although later models have higher technical specifications than older models. As of July 2015, the latest iPhone model was the iPhone 6.
The iPhone 6 features a Retina HD display for media viewing and 64-bit architecture for compatibility with most apps in the Apple Store. It also includes an A8 chip to drive the 4.7-inch display and an M8 motion coprocessor for apps that require motion data, such as GPS apps and sleep tracking apps. The iPhone 6 camera supports 1080-pixel HD, with 60 frames per second, or FPS, video capture and 240 FPS slow motion capture.
Exclusive to the iPhone 6 model, the Touch ID function allows users to unlock phones using a fingerprint instead of the four-digit passcode used by previous iPhone models, or the swipe motion used by many other phone models. The user can also program the iPhone to accept his fingerprint for approving Apple Store purchases from the App Store, iTunes or iBooks.
The iPhone 6 includes new, integrated support for Apple Pay with increased security. This feature functions similarly to Google Wallet and other digital wallet services by tracking a user's credit cards securely and letting the user pay in-store or for digital purchases using the Apple Pay wallet.