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

iphone 16 apple intelligence

Apple Aiming to Release 'Breakthrough' New iPhone Accessory

Wednesday February 18, 2026 12:43 pm PST by
Apple is looking for a "breakthrough" with its push into wearable AI devices, including an "AirTag-sized pendant," according to Bloomberg's Mark Gurman. In a report this week, he said the pendant is reminiscent of the failed Humane AI Pin, but it would be an iPhone accessory rather than a standalone product. The pendant would feature an "always-on" camera and a microphone for Siri voice...
Apple Watch 15 Tips Every Owner Needs to Know Feature

Apple Watch: 15 Tips Every Owner Needs to Know

Thursday February 19, 2026 7:38 am PST by
Apple Watch is now eleven generations in, and packed with useful features that are easy to miss at first glance. To help you get more out of your new device, we've rounded up 15 practical tips you might not have discovered yet, including a few that long-time users often overlook. Bounce Between Two Apps On your Apple Watch, double-press the Digital Crown to see a deck of all currently...
Dynamic Island iPhone 18 Pro Feature

10 Reasons to Wait for Apple's iPhone 18 Pro

Wednesday February 18, 2026 5:12 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
iphone 17 pro green

iPhone 17 Pro Max Curiously Becomes Most Traded-In Smartphone

Wednesday February 18, 2026 9:13 am PST by
New trade-in data indicates that Apple's iPhone 17 Pro Max has rapidly become the single most traded-in smartphone. According to a new report from SellCell, Apple's latest flagship iPhone has quickly risen to the top of the independent trade-in market, accounting for 11.5% of all devices appearing in the top-20 trade-in rankings just months after release. The analysis is based on SellCell...
Multicolored Low Cost A18 Pro MacBook Feature

Low-Cost MacBook Expected on March 4 in These Colors

Wednesday February 18, 2026 5:42 am PST by
Apple will announce its rumored low-cost MacBook at its event on March 4, with the device coming in a selection of bold color options, according to a known leaker. Earlier this week, Apple announced a "special Apple Experience" for the media in New York, London, and Shanghai, taking place on March 4, 2026 at 9:00am ET. Posting on Weibo, the leaker known as "Instant Digital" said that the...

Top Rated Comments

179 months ago
Try not to inhale when installing it.
Score: 67 Votes (Like | Disagree)
Oletros Avatar
179 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
179 months ago
Hooray! Another small item for me to lose.
Score: 28 Votes (Like | Disagree)
basesloaded190 Avatar
179 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
179 months ago
Hooray! Another small item for me to lose.

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

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