When Sony debuted the Live on YouTube app last month, we wondered if compatibility would extend backwards to some other high-end Sony phones. The time is now, Sony smartphone owners... at least if you own one of three very specific models. Last year's flagship the Xperia Z1, its slightly smaller brother the Xperia Z1 Compact, and the high-powered Xperia ZL2 (which is only available in some Asian markets at the moment), all have access to the app as of now.

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