As of 2015, some of the latest cell phones include the Samsung Note 5 and S6, the iPhone 6, the OnePlus X and the Microsoft Lumia 950. The Note 5, S6 and OnePlus X all run Android, while the iPhone runs iOS and the Lumia 950 runs Windows Phone.
Samsung's Galaxy Note 5 is a large smartphone with a high pixel ratio screen and a removable stylus that acts as a digital pen. The S6, while smaller, comes in two variants, one with a standard screen and one with a screen that curves down the sides of the device, offering slightly more screen real estate than other similarly sized phones.
The iPhone 6 is Apple's latest release of the popular iPhone line, as of 2015. The iPhone 6s variant is available in an unlocked variant that works across all major United States and international carriers.
Microsoft's Lumia 950 focuses on delivering a user experience that is similar to that provided by the Windows operating system. Application support on the Windows Phone operating system is sub-par compared to the Android and iOS ecosystems due to the Windows Phone operating system operating in a much smaller market share than Android and iOS.