Two-day removable battery, expandable storage and a great 5.5in screen overcome some cheap material choicesLG’s latest flagship mobile phone is designed to meet the high expectations that no-compromise, power users of Android phones have been craving. Fortunately, it manages to meet most of those demands.The successor to one of the best phablets (phone-tablet) of last year, the G3, the G4 boasts a removable back, expandable storage and replaceable battery – the last remaining mainstream Android smartphone manufacturer to do so.Pros: great screen, brilliant camera, two-day battery, expandable storage, removable battery, KnockCode.Cons: lack of premium materials, plastic back easily scratched, no built-in wireless charging.