Asus has announced on Twitter that the Android 4.4 KitKat update has started rolling out for the Asus ZenFone 4. It's a bit late now to do this but better late than never.

Meanwhile, those who bought the bigger and more expensive ZenFone 5 and ZenFone 6 are understandably miffed as their phones are still running Jelly Bean. Asus hasn't commented on when these phones will be getting the KitKat update.

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