iOcean have been running a number of updates on their iOcean X7 phone, but non as large as this on the iOcean X7 Plus 16GB.
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In essence the iOcean X7 Plus 16GB is a highly updated version of the Youth model, but it appears this version of the phone will be sold as a separate model all together! Priced at 1299 Yuan ($211 Chinese mainland price), the X7 Plus features an upgraded 1.5Ghz MT6589T processor, a storage bump to 16GB, a 13 mega-pixel rear camera (rather than the 8MP previously) and new optics to improve the quality of photos.
The rest of the hardware remains the same meaning 1GB RAM, a 5-inch 1920 x 1080 display, 2000mAh battery, and Android 4.2 Jelly Bean OS.[ Source ]