The S4 has 2 GB of RAM-fine! But the first time I got my S4, the RAM used was always 1GB leaving 1GB RAM free. This led to poor battery life and so I debloated it and the situation slightly improved-only 800 MB used. Is there ANY way I can decrease RAM usage? (Please don't give me answers like 'Close all tasks'!) BTW, its rooted and on stock. On the other hand Note 2 uses only 400MB ram after clearing tasks! I'm really puzzled.