New Nano-SIM Standard Approved, 40% Smaller Than Micro-SIM - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

New Nano-SIM Standard Approved, 40% Smaller Than Micro-SIM

As noted by The Verge, the European Telecommunications Institute (ETSI) today announced it has adopted a standardized design for the next-generation "nano-SIM". The new design is 40% smaller than the current micro-SIM standard.

Today's SIM card designs take up a significant amount of space inside a mobile device. This space is more and more valuable in today's handsets which deliver an ever increasing number of features.

The fourth form factor (4FF) card will be 40% smaller than the current smallest SIM card design, at 12.3mm wide by 8.8mm high, and 0.67mm thick. It can be packaged and distributed in a way that is backwards compatible with existing SIM card designs. The new design will offer the same functionality as all current SIM cards.

The design selection was heavily contested, with a proposal from Apple being opposed by a number of other mobile phone manufacturers despite Apple having the support of many European carriers. As the selection process continued, Apple slightly tweaked its design while the opposing carriers made changes to their own proposal that brought their design much closer to Apple's.

apple nano sim
Prototype of Apple's proposed nano-SIM design inside outline of a mini-SIM card (Source: The Verge)

The Verge notes that by the time final selection was made the only difference in external design between the two proposals was a notch included in the side of the card proposed by the coalition of manufacturers opposing Apple. And with the ETSI yet to publish any other details on the approved design beyond overall measurements, it is not yet clear which design won out.

Unfortunately, both Apple's design and the more recent Motorola / RIM compromise design are exactly the same exterior dimensions — the only difference is that the update submitted by Apple's competitors includes an extra notch to enable so-called "push-push" mechanisms in SIM slots that wouldn't necessitate a tray. Until ETSI publishes the specs, we won't know which of the two was chosen.

The ETSI specifically refused to comment on which group's design was chosen, noting only that a collective decision by the industry yielded the final standard.

Update: IDG News Service reports that Apple's design was indeed the winning standard.

Apple has won a battle over the standard for a smaller SIM card, use of which would leave more room for other components in future phone designs. [...]

ETSI isn’t releasing any further details of the vote or the winning specification, only saying that the decision had been made, according to a spokesman at the standards organization. The proposer of the winning specification was identified by card maker Giesecke & Devrient, which had a representative on the committee.

Popular Stories

Apple Watch Ultra 2 Black Titanium

New Apple Watch Series 12 and Apple Watch Ultra 4 Features Revealed

Sunday August 30, 2026 7:54 am PDT by
Bloomberg's Mark Gurman today further outlined what to expect from the Apple Watch Series 12 and Apple Watch Ultra 4 set to be unveiled on September 9. While it was initially rumored that Touch ID may be coming to the Apple Watch this year, Gurman reiterated that he does not expect the Series 12 or Ultra 4 to have any major design changes compared to the current Series 11 and Ultra 3 models. ...
Mac mini vs Studio Feature Sans Text 1

Apple Caught Off Guard by AI Demand for Mac Mini and Mac Studio

Sunday August 30, 2026 8:52 am PDT by
Apple's unusually timed announcement of new Mac mini and Mac Studio models this week was driven by unexpectedly strong enterprise appetite for AI hardware, according to The Information. Apple normally releases new Mac models in the autumn, closer to October or November, making this week's announcement unusually early, falling just before the anticipated arrival of new iPhone models. The...
Mac Studio Feature

Apple Seemingly Made a Mistake When Announcing the New Mac Studio

Monday August 31, 2026 11:19 am PDT by
Apple's press release for the new Mac Studio with M5 Max and M5 Ultra chips last week initially stated that the computer had "next-generation SSD architecture built on PCIe Gen 6." However, as spotted by the French blog MacGeneration, Apple removed the PCIe 6.0 mention from the announcement shortly after it was published. The press release still mentions that the new Mac Studio has a...

Top Rated Comments

186 months ago
Try not to inhale when installing it.
Score: 67 Votes (Like | Disagree)
Oletros Avatar
186 months ago
You taking your SIM card out frequently?

I go frequently to France and Italy so I have 3 SIM's, this two and the Spanish one.

So yes, the smaller the SIM the easier is losing it
Score: 29 Votes (Like | Disagree)
roadbloc Avatar
186 months ago
Hooray! Another small item for me to lose.
Score: 28 Votes (Like | Disagree)
basesloaded190 Avatar
186 months ago
I go frequently to France and Italy so I have 3 SIM's, this two and the Spanish one.

So yes, the smaller the SIM the easier is losing it

I guess in Europe its a whole different ball game than in the states.
Score: 24 Votes (Like | Disagree)
basesloaded190 Avatar
186 months ago
Hooray! Another small item for me to lose.

You taking your SIM card out frequently?
Score: 23 Votes (Like | Disagree)
roadbloc Avatar
186 months ago
You taking your SIM card out frequently?

Of course. When I go abroad.
Score: 17 Votes (Like | Disagree)

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors