If you’re an experienced smartphone user or are entering the touchscreen game late on, there are a host of different handsets out there to choose from. Whilst there’s something to be said for acquiring the absolute best in smartphone tech, the soon-to-be-released OnePlus 2 flagship phone killer could be a far better choice for discerning users. So, how does the handset weigh up against the two top Android flagship models, the LG G4, and the Samsung S6?