11.1% more mAH battery than OptimaSmart OPS-51D. More battery capacity reduces the need to charge your battery again. (1500 mAH, Li-Po vs. 1350 mAH, Li-Po)
60.0% more mega pixels (MP) on main camera than OptimaSmart OPS-51D. More main camera resolution means better picture quality and detailed photos, which will look sharp on a large screen. (3.2 MP vs. 2 MP)
10.0 grams Lighter than OptimaSmart OPS-51D. light weight phone is easy to hold and can kept in your pocket for long time. (126 grams vs. 136 grams)
0.3 mm Thinner than OptimaSmart OPS-51D. Slim mobile phone is easy to handle and looks gorgeous in hand. (124 x 63.5 x 10.5 mm vs. 117 x 61.8 x 10.8 mm)
14.3% bigger screen size than OptimaSmart OPS-51D. The bigger the screen size is better the user experience of reading and watching movie or video songs. (4.0 Inch vs. 3.5 Inch)
41.2% Higher pixel density than OptimaSmart OPS-51D. High pixel density shows sharper text and extremely detailed photos and videos. (233 ppi vs. 165 ppi)
100.0% More RAM memory than OptimaSmart OPS-51D. more RAM makes your mobile significantly faster and efficient. (512 MB vs. 256 MB)
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