The GPRS package I use is 5 yuan 10M. I wonder how long it will last. (I opened 163 email and 139 SMS reminder)

How long the traffic can last depends on how you use it. If it is used all day, the flow of 100M is not enough. When you receive an email online, you shouldn't use too much traffic. Try it first, and then send CXGPRS to 10086 every day to check the traffic. Then, according to your situation, if you use more traffic, you will pack it, and if you use less, you will not pack it.

I hope this helps.