Outlook has been more and more important in out daily life and business. It enables you to email your teammate, continue your business and so on. However, when you change a new iOS device, and manage to install Outlook on the new iPhone, you will find there is no data in Outlook.

In such a situation, what you need to do is to transfer Outlook contacts from the old device to new iPhone/iPad. If you do not know the detailed steps, you have come to the right place. This passage is going to tell you the best four ways to sync Outlook contacts to your iPhone. This tutorial works with your iPad, iPod touch, too.
Part 1. Import Outlook contacts to iPhone
Solution 1: Copy Outlook contacts to iPhone directly without iTunes
If you are using iOS 10 or later version, you are able to sync your Outlook contacts to iPhone directly. Follow the guide below to do that:
Step 1: Start Settings app
Head to Settings app on your iOS device, scroll down the page and select "Contacts". And tap "Account" option, then "Add Account".
Step 2: Sign in Outlook
From the list, choose Outlook. Follow the instructions to log in with your Outlook account together with your password.
Step 3: Access Outlook account
You are able to access your Outlook account. Just turn on Contacts with one click, you will find all your Outlook contacts have been synced to iPhone successfully!
If your iPhone is running iOS 8/9 and earlier, follow the next steps to add Outlook contacts on your iPhone:
Step 1: Launch Settings app
On your iPhone, go to Settings app, select “Mail, Contacts, Calendar” option, and then click on “Add Account” button.
Step 2: Sign in Outlook
Select Outlook option from the list, and then sign in Outlook with your account and password.
Step 3: Turn on Outlook account
Finally, open Outlook contacts, simply tap on the “Save” button. Now you managed to imported your Outlook contacts to iPhone successfully!

Solution 2: Copy Outlook contacts to iPhone without iTunes via iCloud
iCloud is a great cloud storage service developed by Apple. With iCloud, you are able to sync all kinds of data and files, make an up-to-date backup of your iOS device and so on. Before you start using iCloud to export Outlook contacts to iPhone, make sure you have backed up your Outlook .pst file beforehand.
Step 1: Log in iCloud
Download and install iCloud Control Panel on your PC. Then launch it and sign in with your iCloud account.
Step 2: Import backup to iCloud
Upload the Outlook .pst file you backed up just now to your iCloud, and set iCloud .pst as your default.
Step 3: Select contacts in iCloud
Turn back to the main screen of iCloud, ensure you have ticked the option of "Contacts with Outlook", and then tap on "Apply".
Step 4: Sync Outlook contacts to iPhone
Get into your iOS device, launch iCloud app, and open Contacts. You will find that all your contacts with Outlook have been transferred to your iPhone.
If you need, you are also able to add Google contacts to your iPhone with the similar way.

Part 2. Sync Outlook contacts with iPhone
Solution 1. Export Outlook contacts to iPhone with iTunes
iTunes supports you to sync and manage files from many iOS apps to iPhone, such as Outlook contacts. It is easy to use and of great efficiency. If you are a fresh hand, iTunes should be your best choice to add data and files from other apps to iOS device.
Step 1: Plug iPhone to computer
Connect your iOS device with your computer via an USB cable. Then launch iTunes app on the computer.
Step 2: Select Info option
On the upper-left corner of iTunes screen, tap on the "Device" icon. Then tap "Info" option from the left panel.
Step 3: Sync contacts to iPhone
Then tick the option of "Sync Contacts with", and select "Outlook". you are able to copy all the Outlook contacts or only import selected ones to iPhone.
Step 4: Complete the setup
Confirm your selection, and then tap on the "Apply" button to finish the setup. Finally, you can check the Outlook contacts on your iPhone.

Solution 2. Export Outlook contacts to iPhone via Exchange
If your iOS device is able to connect to your internal corporate network, and there is an Exchange server, maybe you can consider syncing your Outlook contacts to your iPhone with Exchange. Here are the detailed steps to do that:
Step 1: Set up Outlook account
Use Exchange service to set up your Outlook account. Then turn to your iPhone, navigate to Settings app from the home screen, and tap "Mail, Contacts, Calendars" option.
Step 2: Add Exchange account
Next select "Add Account" option in the "Mail, Contacts, Calendars" page, and choose "Exchange".
Step 3: Connect iPhone to Exchange server
Simply follow the instructions to enter your email, user name as well as password, then click "Next" button. Then your iPhone will be connected with the Exchange server.
Step 4: Transfer contacts to iPhone
Then enter the address of the server on your iPhone, and choose your desired Outlook contacts to sync them to your iPhone.

Conclusion
This tutorial is an ultimate guide about how to sync Outlook contacts to iPhone. This post lists 4 different solutions for you to take into consideration. You can choose the one you like and then follow the step-by-step guide to solve your problem. If you manage to make the transferring, please share your experience in the following comment to help your fellow readers.