The SIM card stores network-specific information used to authenticate and identify your device on the Aeris GSM network.
The Aeris SIM is available in different form factors that allow for various classes of M2M and IoT solutions.
For most solutions, the Standard grade mini-SIM is appropriate. They can be easily inserted in the SIM card holder in your device, and will performed well under normal environmental conditions.
When your solution operates under harsher environmental conditions, or when your device is subject to repeatable vibrations and shocks, the ruggedized Individual grade mini-SIM provides a good alternative.