What's the best mobile phone card for texting?

There are three brands of mobile phones. Shenzhouxing, M-Zone, Global Connect. Generally speaking. Shenzhouxing has no monthly rent or monthly rent is rarely suitable for the elderly and family-type people. GSM is more affordable for business travelers who travel frequently. It's best to use dynamic area for texting and surfing the Internet. You can specially handle the SMS package in the M-Zone. There are 200 bags, 600 bags and so on. There is also a small plan of 5 yuan 150 yuan. But this is not a set meal. As far as I'm concerned. I have a GPRS package in 20 yuan. It contains 200 short messages. Also accumulated 3 5 yuan packages and 200 short message packages. If there are not enough text messages. I'll send it by airmail. It's still relatively economical after a month.

However, this package will vary from place to place. Ask in the mobile hall.