Motorola Droid Razr has a 4.3″ AMOLED PenTile display with a Gorilla glass cover. It has a 8MP front camera and 1.6MP rear camera. It is powered by 1.2GHz processor and 1GB of RAM. The phone can be upgraded to Android 4.1.2 Jelly Bean, though it ships with Android 2.3.5 Gingerbread.
Motorola stopped providing official update to this device a long time ago. But custom ROM developers have not. CyanogenMod team have created CM 13 ROM for this device running on Android 6.0 Marshmallow. If you want to install it on Droid Razr, a detailed guide is given below.