We are already used to smartphones with the "plus" version of a model so SKK Mobile has got to do something with their Chronos Ace.
From their Facebook page, they announced the SKK Mobile Ace+ with 2 GB RAM and Android 6.0 Marshmallow. The rest of the specs are the same to the Chronos Ace like the 1.3 GHz quad-core SoC, 5 inch IPS HD display, 13 MP rear cam with flash, 5 MP front cam and 8 GB ROM
As of this time, no official words on the battery capacity, price and release date.