such a display. As with the G2, the G3 was designed with minimal screen bezels to ensure a compact form. Storage and chipsets The G3 features a 2.5 GHz quad-core Qualcomm Snapdragon 801 system-on-chip; variants with 16 GB of internal storage have 2 GB of RAM, while variants with 32 GB of internal storage have 3 GB of RAM. Battery The G3 includes a 3,000mAh battery. Unlike with the predecessor LG G2, the G3's rear cover is removable, allowing the battery to be replaced, and storage to be expanded up to 200 GB with currently-available microSD cards. Cameras The G3's 13-megapixel rear-facing camera uses the Sony Exmor RS IMX135 image sensor model, includes optical image stabilization and a dual-tone flash, along with a hybrid autofocus system. The time-of-flight camera system, also known as “laser autofocus”, uses a thin infrared laser beam to calculate the distance between the camera and its subject. In situations where data from the infrared autofocus is unreliable, the camera falls back on contrast autofocus. LG touted that the hybrid system gave the G3 the then fastest focus time of then any smartphone, and that the infrared autofocus would also be beneficial in low-light situations. The LG G3 is the first mobile phone that is able to record optically stabilized 2160p (4K) video. Wireless charging The G3 natively supports Qi wireless charging, except on models sold in Korea and the United States due to restrictions imposed by carriers. Wireless charging is only available on models sold in these regions if the QuickCircle case accessory is installed. Connectivity 802.11ac WiFi is supported, as is satellite navigation using GPS and GLONASS satellites. There are different models for different regions, with appropriate telephone bands, some models also having FM radio support. Software The LG G3 shipped with Android 4.4 "KitKat" and LG's proprietary user interface and software suite G UI. The G3's user interface was revised with a flatter visual appearance than the G2, "mature" color schemes, new icons and the use of Roboto as the default font. New software features introduced by the G3 include the intelligent personal assistant "Smart Notice"—which presents context-sensitive notifications and suggestions using natural language, the fitness tracker LG Health, an updated "Smart Keyboard" with adjustable key height and the ability to analyze the user's typing habits to personalize its behavior, remote device locking and wiping, and "Content Lock"—the ability to store files in a