31.1% more mAH battery than Samsung Jack i637. More battery capacity reduces the need to charge your battery again. (1940 mAH, Li-ion vs. 1480 mAH, Li-ion)
6.7% more mega pixels (MP) on main camera than Samsung Jack i637. More main camera resolution means better picture quality and detailed photos, which will look sharp on a large screen. (3.2 MP vs. 3 MP, Auto focus)
51.9 grams Lighter than Samsung Jack i637. light weight phone is easy to hold and can kept in your pocket for long time. (102.1 grams vs. 154 grams)
2.3 mm Thinner than Samsung Jack i637. Slim mobile phone is easy to handle and looks gorgeous in hand. (117 x 61 x 12.70 mm vs. 114 x 64 x 15 mm)
100.0% More RAM memory than Samsung Jack i637. more RAM makes your mobile significantly faster and efficient. (256 MB vs. 128 MB)
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