Here's how to check your cellular data usage on an iPhone, and find specific readings for and manage each app's data.

Most mobile carriers have a phone line for data usage checks. You can also see how much data is left in your online account or the company's app Data can cost you big bucks if you're not paying ...

This guide will show you how to check your smartphone data usage on your Android Phone or iPhone. Data usage is the amount of data that your smartphone uses to connect to the internet. This includes ...

Only the Apple Watch Series 3 and 4 (GPS + Cellular) models can use cellular data, provided they have been set up with a supported carrier.