33.3% more mAH battery than OptimaSmart OPS-51D. More battery capacity reduces the need to charge your battery again. (2000 mAH, Li-ion vs. 1500 mAH, Li-Po)
6.7% 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. 3 MP)
333.3% more mega pixels (MP) on front camera than OptimaSmart OPS-51D. More front camera resolution means better selfies picture. Front facing cameras also used for video call on Skype (1.3 MP vs. 0.3 MP)
300.0% More RAM memory than OptimaSmart OPS-51D. more RAM makes your mobile significantly faster and efficient. (2 GB vs. 512 MB)
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