Instagram business profiles have many advantages over the normal ones:

• Instagram Insights is analytics that provides stats about the impressions and reach of your posts
• You can see the age, sex, nationality and much more info about your followers
• Followers can click on your contact button to get in touch with you right from your Instagram profile
• You can also create and publish Instagram ads very easily

Switch to a business account

• Go to Settings
• Click on "Switch to Business Profile"
• Follow the required steps.