New iPad: 10 Hours
Nexus 10: 9 Hours
Battery life is one of the few areas where the new iPad comes out on top. According to Apple, its fourth-generation tablet gets up to 10 hours of video playback or Web-surfing, while Google's Nexus 10 gets a slightly less impressive 9 hours.
Technically speaking, the new iPad hosts a 42.5-watt-hour lithium-polymer battery, while the Nexus 10 has a 9000 mAh lithium polymer.