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

Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro Launching in September With These 10 New Features

Monday April 20, 2026 7:13 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are not launching until September, there are already plenty of rumors about the devices. It was initially reported that the iPhone 18 Pro models would have fully under-screen Face ID, with only a front camera visible in the top-left corner of the screen. However, the latest rumors indicate that only one Face ID component will be moved under the...
Sad iPhone 18 Feature

Leaker: Apple to Downgrade iPhone 18 in Two Ways

Wednesday April 22, 2026 8:02 am PDT by
Following the emergence of a rumor that Apple is planning to downgrade the iPhone 18 to cut costs, further detail has emerged suggesting that display and chip specifications will see downgrades. Earlier this week, the leaker known as "Fixed Focus Digital" said that the iPhone 18 features "certain manufacturing downgrades" that bring it more into line with the low-cost iPhone 18e model. The...
Apple Maps General

Tim Cook Calls Apple Maps Launch His 'First Really Big Mistake' as CEO

Thursday April 23, 2026 5:29 am PDT by
Outgoing Apple CEO Tim Cook has named the botched 2012 launch of Apple Maps as his "first really big mistake" in the role, according to a Bloomberg report covering the town hall meeting that was held Tuesday with his recently announced successor, John Ternus. The Maps app launched with mislabeled landmarks, faulty directions, and a user experience that fell well short of Google Maps at the...

Top Rated Comments

181 months ago
Try not to inhale when installing it.
Score: 67 Votes (Like | Disagree)
Oletros Avatar
181 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
181 months ago
Hooray! Another small item for me to lose.
Score: 28 Votes (Like | Disagree)
basesloaded190 Avatar
181 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
181 months ago
Hooray! Another small item for me to lose.

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

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