3.7% more mAH battery than OptimaSmart OPS-41D. More battery capacity reduces the need to charge your battery again. (1400 mAH, Li-ion vs. 1350 mAH, Li-Po)
2.7 mm Thinner than OptimaSmart OPS-41D. Slim mobile phone is easy to handle and looks gorgeous in hand. (117 x 61.8 x 10.8 mm vs. 118 x 62.5 x 13.5 mm)
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