Contacts from your Old Nokia to an iPhone

If it were a S60 Nokia phone (like the E-Series), you could have probably used Google Mobile Sync to copy contacts from the phone to Google Contacts and then use Google Sync on the iPhone again to bring those contacts from the cloud into your phone’s address book.

Transfer Contacts from Nokia Phone to iPhone

For older phones, you may use the operator’s SIM to transfer contacts from one phone to another. While the SIM is still inside your Nokia phone, go to Contacts –> Options –> Mark / Unmark –> Mark All. Now that all your existing contacts are selected, go to Options –> Copy –> Copy contacts to and choose SIM memory.
Next insert the SIM card into your iPhone and, as shown in the above screenshots, go to Settings –> Mail, Contacts, Calendars and tap the Import SIM contacts button. Then configure the iPhone with your Gmail account and use Google Contacts to eliminate or merge duplicates, if any, from the iPhone.
The Nokia phone accepts regular SIM cards while the iPhone would only accept micro-SIM cards. If you have already cut the original SIM to fit into the iPhone, ask the mobile shop for one of these Micro SIM adapters. The limitation is that your SIM may not have enough storage for all phone numbers so you may have to do the transfer in batches.