The Cool S1 runs 6.0.1 Marshmallow with EUI 5.8 on top which features a number of improvements such as long screen shot that captures a screenshot of the entire page and not just what is visible on screen, and the ability to sync with smart TV's and automobile systems. The phone is powered by a Snapdragon 821 chipset that bears a quad-core
2.35 GHz Kryo processor and 4GB of RAM
that handles any task with ease. The GPU on the phone is an Adreno 530 for games and HD entertainment. The Cool S1 does not offer expandable storage space.