SIM Card Size Guide
Choose a SIM format to see its dimensions and a simple fit checklist. This guide uses fixed industry form-factor measurements only.
Choose a format to see its reference.
Nominal dimensions:
Thickness:
Fit checklist
- Match the outline and contact orientation.
- Check the tray label or device manual.
- Never force a card into the tray.
Local physical reference only. No carrier, coverage, activation, or network lookup.
A QUICK WALKTHROUGH
How to use this tool
- Choose a SIM form factor.
- Compare the card dimensions and thickness with your device tray.
- Use the fit checklist before inserting a card; do not force a card into a slot.
Physical reference only
Measurements describe common card form factors: Mini (standard), Micro, and Nano. Manufacturing tolerances and tray designs can vary.
No network lookup
This browser guide does not identify carriers, coverage, activation status, network compatibility, or current plans.
GOOD TO KNOW
Common questions
Does this tell me which carrier to use?
No. It only compares physical SIM card sizes.
Can I cut a larger SIM myself?
Use a properly sized replacement or ask your carrier or device manufacturer. Cutting can damage contacts and is not validated by this guide.
What about eSIM?
An eSIM has no removable card dimensions. Check the device documentation for eSIM support.