I just bought my new Samsung Galaxy S5. When texting, when I exceed 160 characters it automatically converts to MMS. I have researched the remedy,gone to settings and clicked the MMS Alert to 'on' which alerts me when I have exceeded the maximum amount of characters, but it still converts to MMS. How can I revise the amount of maximum characters so I won't need to use my data? I certainly don't want to have to send multiple texts every time I text over the 160 limit.
There is no way to increase the number of characters you can send via SMS. SMS (Short Message Service) is a fixed standard that is currently defined as a way of sending messages up to 1120 bits in length. This means 160 7-bit characters or 140 8-bit characters or 70 16-bit characters. More here http://www.en.wikipedia.org/wiki/Short_Message_Service
I had the same issue with my Samsung Galaxy S4. When I exceed 160 characters, it automatically converts the message type to MMS. I installed Google messenger app to solve this issue.