True, but there have been advances in processor, screen, and battery efficiencies in the past year or so. My Moto X only has a 2200mh battery, but I get 5+ hours of screen time (usually with about 16 hrs of overall up time)3500 mah battery in maxx let's my wife have 8+ hours of screen time on single charge(she disconnects at 6am and reconnects at midnight every day). my 2100 mah battery in nexus gives me 2.5 hours of screen time on single charge