Data usage can vary from user to user. You can check up to the minute usage from your device by dialing #DATA and you will be sent a text message (no charge to you) of how much data you have used. Hope this helps.
If you are an occasional user of the internet browsing, meaning not on a daily basis the 150/MB may suite you. However if you are going to be using the internet daily, we recommend the unlimited data package to avoid overages in data. You can follow the link below to view our data calculator.
Once you click on the link, scroll to the bottom left of the screen, there you will be able to click data calculator to check to see what usage may suite you. The usage it shows you is an estimate only.