80.0% more mAH battery than Zen X4. More battery capacity reduces the need to charge your battery again. (1800 mAH, Li-ion vs. 1000 mAH, Li-ion)
0.4 mm Thinner than Zen X4. Slim mobile phone is easy to handle and looks gorgeous in hand. (116.5 x 51.9 x 14.60 mm vs. 113 x 49 x 15 mm)
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