I just got a Lumia Icon 2 weeks ago. During that time, Data Sense states I have used 2GB of data, while Verizon says .17GB. I do most of my data usage on wi-fi and it almost seems as if Data Sense is including the wi-fi traffic as cellular data. I am on WP8 and haven't updated to 8.1 yet.
What could account for this ridiculous discrepancy in measurements?