you can write more by using enabling RCS (Chat Messages) in Samsung Messages, or switching to Google Messages which handles joined Arabic SMS better, avoiding emojis and special symbols, or manually splitting the text into multiple SMS; there is no f...
Older phones aren’t actually better this happens because Arabic text uses Unicode (UCS-2), which allows only about 70 characters per SMS, and newer Samsung phones like the S24 Ultra are stricter about this and convert long Arabic messages to MMS much...