This is a round up of all the rumors of what we can expect from the S4
Lighter, thinner? (not sure about this, as if they decide to put the S Pen built in, it will be hard to slim down the SIV)
Higher Resoltion
Bigger Screen
2GB ram
built in S pen
More durable
android Key Lime pie
Faster Downloads
Faster Uploads
13MP camera
Higher PPi
2MPS front camera
Quad-core 2 GHz Cortex-A15
Mali-T658 GPU
non pentile display
longer battery life
Improved Audio quality
Lighter, thinner? (not sure about this, as if they decide to put the S Pen built in, it will be hard to slim down the SIV)
Higher Resoltion
Bigger Screen
2GB ram
built in S pen
More durable
android Key Lime pie
Faster Downloads
Faster Uploads
13MP camera
Higher PPi
2MPS front camera
Quad-core 2 GHz Cortex-A15
Mali-T658 GPU
non pentile display
longer battery life
Improved Audio quality