How many bytes is the longest short message in Android?

A short message ("One" is responsible for billing) is 160 English or numeric characters, or 70 Chinese characters.

Charge by the number of short messages, and charge by one if there is less than one. If you have to say how many bytes, an English letter (regardless of case) takes up one byte and a Chinese character takes up two bytes (ASCII code). And Chinese punctuation takes up two bytes.

As for how long a long message can be, there is no exact information at present. I once sent a long message of seven articles. Some netizens claimed to have sent long short messages (equivalent to 43-72) with contents exceeding 3,000-5,000 Chinese characters.