LG G4 is powered by a Hex-Core 1.8GHz Qualcomm Snapdragon 808 processor and 3GB of RAM. It features a Quad HD 5.5″ IPS Quantum LCD display, 32GB internal storage, with up to a further 128GB available via microSD, and wireless charging capability. The rear facing shooter comes in at 16MP and features an f1.8 aperture, phase detection/laser focus, optical image stablization and 4K video recording at 30FPS. The front facing camera has an 8MP sensor and is capable of 1080p video at 30FPS.
CyanogenMod team is slowly releasing official builds of CM 13 ROM which will update the devices to Android 6.0 Marshmallow. LG G4 has received couple of nightlies of CM 13 and it is quite stable. If you want to install it, follow the guide below.