How to Check Data Usage on an iPhone: 8 Steps (with Pictures)

Keeping an eye on your cellular data usage on your iPhone is a good idea to avoid running out of allocated data and incurring fees.
STEPS
METHOD 1 OF 2: USING IOS 7

1

OPEN "SETTINGS".

2

CLICK ON "CELLULAR".

3

SCROLL DOWN TO "CELLULAR DATA USAGE". Your usage information should be listed here.
METHOD 2 OF 2: USING IOS 6 AND BEFORE

1

TAP THE SETTINGS ICON ON YOUR IPHONE’S HOME SCREEN TO LAUNCH THE SETTINGS APP.

2

TAP GENERAL.

3

TAP USAGE.

4

SCROLL DOWN AND TAP CELLULAR USAGE.

5

THE AMOUNT OF CELLULAR AND TETHER DATA USED IS SHOWN. Tap Reset Statistics to reset all values to zero.
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TIPS
To calculate how much data you use over a period of time, tap the Reset Statistics button and then check the data you have used from that point onward at a specified time.
Tether Data is data used while your iPhone has been connected to another device using the Personal Hotspot feature.
Cellular Usage is wireless data you’ve used for web browsing, email and more that was provided by your carrier and not a Wi-Fi network.