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Anonymous
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Sms character limit

Why is there a 160 character limit on Android devices?
Anonymous
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Re: Sms character limit

I guess to stop them turning into mms messages which cost more & will charge outside of your allowances 

Posts: 88,223
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Registered: ‎04-04-2012

Re: Sms character limit

[ Edited ]

Not sure what you mean as the limit is nothing to do with Android. A standard SMS is 160 characters long. This is the standard that applies to any phone, on any network in the World using standard GSM.
It was limited to this due to the technology available at the time it was invented (maybe 25 + years ago) and was followed by EMS which we now know as MMS which allowed more data to be sent in a single message.
Wiki explains is as this:
Transmission of short messages between the SMSC and the handset is done whenever using the Mobile Application Part (MAP) of the SS7 protocol.[43] Messages are sent with the MAP MO- and MT-ForwardSM operations, whose payload length is limited by the constraints of the signaling protocol to precisely 140 bytes (140 bytes * 8 bits / byte = 1120 bits). 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.[44] 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, or 70 16-bit characters. GSM 7-bit alphabet support is mandatory for GSM handsets and network elements,[44] but characters in languages such as Arabic, Chinese, Korean, Japanese, or Cyrillic alphabet languages (e.g., Russian, Ukrainian, Serbian, Bulgarian, etc.) must be encoded using the 16-bit UCS-2 character encoding (see Unicode). Routing data and other metadata is additional to the payload size.
Taken from here: https://en.wikipedia.org/wiki/SMS

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Registered: ‎14-01-2013

Re: Sms character limit

[ Edited ]

And a standard SMS will allow 480 characters (160 x3) before it converts to MMS (Multi media message)

#justsaying lol

*The Game Is On*


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Re: Sms character limit


@Cleoriff wrote:

And a standard SMS will allow 480 characters (160 x3) before it converts to MMS (Multi media message)

#justsaying lol


3 standard sms messages Smiley Wink

A standard sms will always and forever be only 160 characters.

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone7 (EE)
Posts: 72,708
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Registered: ‎14-01-2013

Re: Sms character limit


@MI5 wrote:

@Cleoriff wrote:

And a standard SMS will allow 480 characters (160 x3) before it converts to MMS (Multi media message)

#justsaying lol


3 standard sms messages Smiley Wink

A standard sms will always and forever be only 160 characters.


Yeah. That's what I meant LOL

*The Game Is On*


Posts: 88,223
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Registered: ‎04-04-2012

Re: Sms character limit

Thought so Bouncy

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
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