Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:

Create a detailed description for the following product: ASUS Zenfone Series, belonging to category: Smartphone

### Response:
The Asus Zenfone series has been carefully designed to be pleasant to the touch. A curving back makes Android smartphones comfortable to hold. In addition, a special ceramic coating communicates a delicate silky feel. One of the phone’s distinctive features is the decorative lower edge made of aluminium with a delicate surface structure. These mobile phones are available with a 4-, 5- or 6-inch display.
### End