For how long do Sony phones get security updates? Are they at least monthly as with Nexus/Pixel?
Even though I dislike Sony recently, they were awesome -- up to their Z3 phones and Z4 tablet releases. And they don't abandon their devices as quickly as everybody else.
Marshmallow was released in late October 2015 [1]. Meanwhile, the Z3 only just started rolling in early April 2016 [2]. That's pretty mediocre if you ask me.
[1]: https://android.googleblog.com/2015/10/get-ready-for-sweet-t... [2]: http://www.androidpolice.com/2016/04/09/marshmallow-update-r...
Eh, anyway. Peculiarities with the release schedules are sadly the norm.