Sony has quietly launched the 4G-enabled version of its Xperia E4 smartphone Sony has quietly launched the 4G-enabled version of its Xperia E4 smartphone, which was launched earlier this month. Dubbed Sony Xperia E4g, the smartphone will also be available in a dual-SIM version February 25, 2015 Business/IT Magazine/Magazine Advertisement india/Mobile Launch/New Feature/News/Phone Reviews/price and specification/price cut/Product Launch/Social Media/Tablet/Tech Hardware/Technology News/Telecom News