The standard SIM card, also known as a “mini SIM,” was the first SIM card’s size iteration and is larger than the subsequent micro and nano versions.

Form Factor: 2FF
Dimensions: 25mm x 15mm
Environment: Normal Conditions
Operational Temperature: -25°C to +85°C
Anti-Corrosion: N/A
Endurance: Average 500,000 write/erase cycles
Data Retention Time: Average 5 to 7 years based on typical usage
Flash Memory: 64KB
Vibration Standard: N/A
Package: Plug-In Card (uses SIM tray or holder)
Typical Application: Most M2M applications, including Vehicle Tracking, Vending Machines, Payments & Signage.

Micro SIM cards are a smaller version of standard SIM cards. They were introduced to accommodate the design of smaller and slimmer devices. The micro SIM carries the same information as the standard SIM, such as the subscriber’s identification details, but it’s physically smaller in size.

Form Factor: 3FF
Dimensions: 15mm x 12mm
Environment: Normal Conditions
Operational Temperature: -25°C to +85°C
Anti-Corrosion: N/A
Endurance: Average 500,000 write/erase cycles
Data Retention Time: Average 5 to 7 years based on typical usage
Flash Memory: 64KB
Vibration Standard: N/A
Package: Plug-In Card (uses SIM tray or holder)
Typical Application: Small form factor M2M applications, including mHealth, GPS, Tablets & Dispatch Units.

Form Factor: Ruggedised 2FF or 3FF
Dimensions: 25mm x 15mm
Environment: Extreme conditions of temperature and vibration
Operational Temperature: -40°C to +105°C
Anti-Corrosion: Yes
Endurance: Average 500,000 write/erase cycles
Data Retention Time: Average 10 years based on typical usage
Flash Memory: 64KB
Vibration Standard: Complies to ETSI TS 102.671 – Vibration VA automotive standard
Package: Plug-In Card (uses SIM tray or holder)
Typical Application: Industrial M2M applications, including smart metering, mining, vehicle telematics and environmental monitoring