33.3% more mAH battery than Zen M3. More battery capacity reduces the need to charge your battery again. (2000 mAH, Li-ion vs. 1500 mAH, Li-ion)
10.0% bigger screen size than Zen M3. The bigger the screen size is better the user experience of reading and watching movie or video songs. (2.2 Inch vs. 2 Inch)
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