The LG G2’s specially engineered 3,000 mAh SiO+ battery was created to complement the phone’s slim, ergonomic shape and to impress with its long life. This high-density battery features a unique step design that provides maximum capacity in a slim form factor, enhanced with Silicon Oxide Plus technology for efficient power.

The Samsung Galaxy S4’s battery is 2600mAh, 1570mAh for Apple iPhone 5s and 2300mAh for HTC One. The capacity of LG G2’s battery is high enough.