Sony is making the Android M Developer Preview available for some of its devices - but while Google releases complete factory images of new Android versions, Sony isn't making things quite that easy.
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Xperia z ultra
Sony has begun rolling out its Lollipop update to even more devices, including the Xperia Z1 and Xperia Z3 Dual, among others - and its global rollout will expand to more phones and tablets next week.
Sony has confirmed that Android 5.0 is now rolling out to its Xperia Z2 and Z2 Tablet, and has also announced when some of its other Xperia devices will get their first lick of the Lollipop update.
A WiFi only variant of the Android-based Xperia Z Ultra phablet from Sony, revealed by documents filed on the FCC's website, has launched in Japan and will be available in stores starting Friday.