Low available space to user: This smartphone comes with 8 GB of internal memory out of the box, out of which only around 4 GB is available to end user. (killerfeatures.com)
It has 16 GB internal memory of which 10.5 GB is user available. (techandroids.com)
It has 16 GB of internal memory with microSD card support for up to 128 GB. (androidauthority.com)