Based on his personal observations and on analysis of the typical lengths of postcard and Telex messages, Hillebrand (The SMS concept developer) argued that 160 characters was sufficient to express most SMS messages succinctly.

Short messages can be encoded using a variety of alphabets: the default GSM 7-bit alphabet, the 8-bit data alphabet, and the 16-bit UCS-2 alphabet. Depending on which alphabet the subscriber has configured in the handset, this leads to the maximum individual short message sizes of

  • 160 7-bit characters,
  • 140 8-bit characters,
  • 70 16-bit characters.

GSM 7-bit alphabet support is mandatory for GSM handsets and network elements, but characters in languages such as Arabic, Chinese, Korean, Japanese, or Cyrillic alphabet languages (e.g., Ukrainian, Serbian, Bulgarian, etc.) must be encoded using the 16-bit UCS-2 character encoding

Multipart or “long SMS” can be sent using multiple SMS messages, 6 to 8 segment messages are the practical maximum. So you can reliably send out up to 1,000 characters in a text. The Android phone will split the SMS message up every 160 characters (especially important if you have a link in your text).

The receiving handset is then responsible for reassembling the message and presenting it to the user as ONE LONG SMS MESSAGE.


Active vs Waiting Auto Reply

Could you change feature for me?

How long can SMS message be?

How to Create Group of Contacts

How to Install Android App from Website

How to Reply only to one contact or group of contacts

How to send MMS: Attaching Images /Video

How to set up SMS Auto Reply

I would like to set different messages for contacts and non-contacts

It stops working when profile is active for a long time

Why it doesn’t work on my device?

Why it’s not free?

Why your apps do still has some bugs?

Where statistic report was exported?

Avatar of Michael Ginzburg

Mobile Enthusiast, SEO Strategist, Analyst, Researcher. Content Strategy and Writer, All Rolled Into One Mobile Apps Business Development, ASO, full Suite SEO, SEM, On-page, Off-page. Technical SEO, Competitors Analysis, Keyword Research+ more LinkedIn: @michaelginzburg64