Definitely this. When I was using an iPhone, it was for all intents and purposes locked behind my thumbprint (even though you could theoretically make a model thumb with my fingerprint and unlock it, it protects from everything other than highly skilled criminals/governments who very specifically target me). Now that I have a Galaxy S5, there's no way I'm writing in a passcode every time I unlock it (and that horrible "fingerprint scanner" is not a replacement for Touch ID), so it's just unlocked.