If u buy mobile for bussiness work likes E-mail, Internet, wifi and Multimedia function not impotant (cemera, Music ectc.) so choose Eseries Phone.
and if Multimedia is important so choose Nseries.
Eseries- For Bussiness Perpose
Nseries- For Multimedia Perpose
Your vote on this answer has already been received
Nokia has good sound quality and other excellent features. Most of my friends are using N series mobiles and i just love it. If you have made up your mind to buy one then u can go for Nokia N72 mobile set. It comes with good display, Bluetooth, MP3 player and FM radio. For any further queries and details u can call on 080-41606393 or 022-65240216 (M-F, 10 AM - 7 PM) or email us at firstname.lastname@example.org