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 Posted: Sunday Dec 20th, 2015 01:01 pm
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juwi_uk
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What size SIM card fits in the UCM; Standard, Micro, Nano?



 Posted: Sunday Dec 20th, 2015 01:08 pm
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tech07
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Standard
SIM card must not be 3G or 4g data only
It should be able to send sms



 Posted: Sunday Dec 20th, 2015 05:58 pm
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juwi_uk
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Cool.  Maybe you can add this to the manual too as I couldn't see it in the version I have.



 Posted: Monday Dec 21st, 2015 01:57 am
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slychiu
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we will add it
This was written in the days when there was only one size of SIM card, before Apple made it so complicated



 Posted: Monday Dec 21st, 2015 04:56 am
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slychiu
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A note about SIM cards has also been added in http://www.comfortforums.com/forum48/3647.html



 Posted: Monday Dec 21st, 2015 05:22 am
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slychiu
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Regarding SIM sizes, the "Mini-sim" (25 x 15mm) as shown below is used for UCM/GSM. Sometimes this is referred to as a "standard-size" SIM. Not the "Full Size" SIM shown below


Attachment: Sim Sizes - 2013 - www.mobilez.org.jpg (Downloaded 26 times)

Last edited on Monday Dec 21st, 2015 05:24 am by slychiu



 Posted: Monday Dec 21st, 2015 09:06 am
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juwi_uk
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Apart from needing to accommodate a standard SIM slot im curious BTW why the main GSM module is so big given what is crammed into a phone theae days. Would a GSM 5 be able to be made at a fraction of the size and cost i wonder?



 Posted: Monday Dec 21st, 2015 11:49 am
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slychiu
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Thats an interesting question, Julian
Does anyone else know  the answer?



 Posted: Saturday Jan 2nd, 2016 09:25 am
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slychiu
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Apart from needing to accommodate a standard SIM slot im curious BTW why the main GSM module is so big given what is crammed into a phone these days. Would a GSM 5 be able to be made at a fraction of the size and cost, i wonder?

My answer is that reducing the size does not necessarily reduce the cost of a device, unless there is very large volume  as in the case with phones. Modern phones must be thin and light, since they have to fit in a shirt pocket, but a UCM/GSM does not need to be small and thin so there is little to be gained from reducing the size. A micro or nano sim holder could be used in place of the standard size SIM holder, but that consideration is based on the ease of handling a standard size SIM vs micro or nano sims and inserting it into the holder.



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