7.1% more mAH battery than Zen Ultrafone 503 3G. More battery capacity reduces the need to charge your battery again. (1500 mAH, Li-ion vs. 1400 mAH, Li-ion)
56.3% more mega pixels (MP) on main camera than Zen Ultrafone 503 3G. More main camera resolution means better picture quality and detailed photos, which will look sharp on a large screen. (5 MP vs. 3.2 MP)
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