Its spec sheet however, won't have hardcore Android users rushing to the shops. Its 5in qHD 960 x 540 screen with a pretty paltry 220ppi won't massage your retinas the same way a full HD or 2K flagship screen will, and1.3GHz quad-core insides, 1GB RAM and 5MP camera won't stir up butterflies in spec fiends either.
What it does offer though, is a 2,300mAh battery, and two days of normal use, which is a whole 24 hours more than most smarter, more powerful phones can manage.Sony reckons you can squeeze an entire week in Ultra Stamina Mode too, which reduces functions down to basic messaging and phone call abilities.
Straying away from the standard sharper edges of the Xperia Z3 and Z3 Compact, the E4 is softer, with a curved, pebble-like design, and could appeal to those looking for a second phone for occasions where power isn't as easy to come by.
Pricing is expected to be substantially easier on your wallet than Sony's flagships, but nothing official has been revealed yet. We'll let you know as soon as we get the full info through.
READ MORE: Sony Xperia Z3 review