My galaxy s5 international version is still laggy lollipop.it lags in places like opening the recent apps menu, multitasking lags real bad sometimes, music player stops working frequently, irregular battery drains in standby( sometimes like 15% for 8 hours of standby sometimes a brilliant 7% in 8 hours) .its still on laggy 5.0 not even 5.0.2 and its unlocked.some of its carrier locked versions are on 5.1.1.I seriously doubt Samsung’s commitment to its costumer and their highly questionable and slow update cycle.