New iPhones can conduct certain NFC transactions even when iOS is not running
The iPhone XS and XS Max, which ship this week, as well as the forthcoming iPhone XR support certain NFC card transactions even when iOS is not running and the host device is powered because it needs to be charged.
Buried in Apple's released technical specs for the new iPhone XS and XR lines, due to arrive Sept. 21 and Oct. 26, respectively, is a first for the devices: Express Card with power reserve. The feature allows new iPhones to conduct supported NFC transactions without the assistance of iOS.
The specs for the iPhone XS list "Express Cards with power reserve" under all models. Apple's recently published iOS security guide update provides more detail.
"If iOS isn't running because iPhone needs to be charged, there may still be enough power in the battery to support Express Card transactions. Supported iPhone devices automatically support this feature with a transit card designated as the Express Transit card [and] student ID cards with Express Mode turned on."
In addition, the security guide notes that in iOS 12, pressing the side button will show text indicating both the low battery icon and text showing that Express Cards may be used.
"The NFC controller performs express card transactions under the same conditions as when iOS is running, except that transactions are indicated with only haptic notification," the paper continues.
Notably, users are only able to access power reserve functionality under low power conditions, meaning the feature is unavailable following a standard hardware shutdown.
Apple, which originally listed the "Express Cards with power reserve" as available in a few countries, has now added that language to its spec pages worldwide. It is now known, according to a report by AtaDistance, that Apple Pay Express Transit Cards will work with power reserve in Japan and China, although it's unclear if they will work elsewhere. Apple added global FeliCa support to Apple Pay a year ago with the iPhone 8, iPhone X and the Apple Watch Series 3.
The new capability is sure to be a boon for holders of transit cards and student IDs issued by participating educational institutions. Express Cards with power reserve brings a key physical NFC card feature -- no power operation -- to iPhone, meaning users no longer have to worry about keeping their device powered up to catch a ride, enter student housing or perform other NFC-based transactions.
Buried in Apple's released technical specs for the new iPhone XS and XR lines, due to arrive Sept. 21 and Oct. 26, respectively, is a first for the devices: Express Card with power reserve. The feature allows new iPhones to conduct supported NFC transactions without the assistance of iOS.
The specs for the iPhone XS list "Express Cards with power reserve" under all models. Apple's recently published iOS security guide update provides more detail.
"If iOS isn't running because iPhone needs to be charged, there may still be enough power in the battery to support Express Card transactions. Supported iPhone devices automatically support this feature with a transit card designated as the Express Transit card [and] student ID cards with Express Mode turned on."
In addition, the security guide notes that in iOS 12, pressing the side button will show text indicating both the low battery icon and text showing that Express Cards may be used.
"The NFC controller performs express card transactions under the same conditions as when iOS is running, except that transactions are indicated with only haptic notification," the paper continues.
Notably, users are only able to access power reserve functionality under low power conditions, meaning the feature is unavailable following a standard hardware shutdown.
Apple, which originally listed the "Express Cards with power reserve" as available in a few countries, has now added that language to its spec pages worldwide. It is now known, according to a report by AtaDistance, that Apple Pay Express Transit Cards will work with power reserve in Japan and China, although it's unclear if they will work elsewhere. Apple added global FeliCa support to Apple Pay a year ago with the iPhone 8, iPhone X and the Apple Watch Series 3.
The new capability is sure to be a boon for holders of transit cards and student IDs issued by participating educational institutions. Express Cards with power reserve brings a key physical NFC card feature -- no power operation -- to iPhone, meaning users no longer have to worry about keeping their device powered up to catch a ride, enter student housing or perform other NFC-based transactions.
Comments
I wonder how quickly this will be adopted.
I wonder if this low-power more could also work for the Apple Watch when all it shows you when you press the button is the time and a charge symbol if the power goes out.
Umm no: "Notably, users are only able to access power reserve functionality under low power conditions, meaning the feature is unavailable following a standard hardware shutdown. "
The phone still needs to have power. IE it won't work when the phone is not on, or when it's battery is completely depleted. This is not like a non powered NFC card.
And before you call me an Apple Hater:
Apple seemed pretty clear that if you can press the Sleep/Wake button and get an image on-screen showing the battery needs to be charged that it will work for Express Card.
This looks like a key stepping stone, and a 'testing of the waters', on the way to digital IDs/passports. I can't wait for a time when all I need to carry with me is my iPhone and/or Apple Watch.
This would be especially helpful while travelling. It would also be helpful in any situation where you need to be able to show ID, but for security reasons you don't want to risk granting access to the contents of your phone.
Ah, very true. Glad you mentioned that. I omitted a big part of my thought process. I was thinking of it as function not necessarily attached to NFC (although retaining this as an option), being able to display your ID securely, without accessing or turning on the full OS, either from a locked screen, or with the phone turned off (kind of like the watch is able to provide a limited function when in low power mode).