17.6% more mAH battery than Zen Ultrafone 504. More battery capacity reduces the need to charge your battery again. (2000 mAH, Li-ion vs. 1700 mAH, Li-ion)
12.2% Higher pixel density than Zen Ultrafone 504. High pixel density shows sharper text and extremely detailed photos and videos. (220 ppi vs. 196 ppi)
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