NFC Forum CR15: What the New 20 mm Range Really Changes
CR15 raises the NFC operating volume from 5 mm to 20 mm for new certified devices. Here is what that covers, what it doesn't, and why tags are exempt.
Introduction
NFC Forum's new certification, CR15, tests devices at an operating volume of 20 mm instead of 5 mm, up to four times the old distance. That is a rule for new certified products, though. Your current phone doesn't gain reach, and not every kind of NFC hardware is covered. Here is what changed, what didn't, and where the extra distance helps.
What OV5 and OV20 mean
An operating volume is the space in front of a device where a tap is expected to work. The old one, OV5, is about 5 mm along the Z-axis, the distance straight out from the antenna. The new one, OV20, is 20 mm (NFC Forum).
In practice that means less precise alignment. You don't have to land the antenna exactly on the target. Ever wondered why NFC has to be so close? CR15 is the NFC Forum's answer to that limit.
What CR15 certifies
NFC Release 15 was announced in June 2025. CR15, the certification program that tests against it, launched on 22 October 2025 (NFC Forum).
Under CR15, all new products in the generic device classes must comply with OV20. Those classes are Mobile, Reader and Card Emulation, and Universal. They must also stay interoperable with devices already in the field that use OV5. A certified phone can still talk to an older reader, and the reverse. NFC Forum says the aim is a consistent user experience across device classes, with a mark of trust that certified devices work as expected inside the extended range.
How the range grew
The jump comes from a small electrical change. Magnetic field intensity goes from 14.5 A/m to 18 A/m, measured with a Class 6 antenna, and poller devices get a slight adjustment to how they receive load modulation amplitude (NFC Forum). OV20 stays compatible with OV5 across form factors from Class 1 to Class 6 antennas.
What stays at 5 mm
Three limits matter before you expect anything new:
- Tags. The Tag device class can choose OV20 or OV5, because small passive tags may not meet OV20. Your NTAG stickers aren't promised 20 mm.
- Devices you already own. CR15 certifies new products. The sources don't say existing hardware gains range.
- Dates. The NFC Forum material doesn't say when specific phones or watches with OV20 certification will ship, so treat any "2026 devices" claim as unconfirmed. Check the certified products list on the NFC Forum site.
For the wider direction, see our look at the NFC Forum roadmap.
Where the extra range helps
The Forum points to a phone as a digital car key and a smartwatch as a transit ticket, and the automotive industry drove the change (NFC Forum). Smart locks, wearables and smart home devices are also named, mostly where the phone acts as the reader. If you already use digital car keys in Apple Wallet, a longer tap window is the kind of improvement this targets.
NXP's Arnaud Schreiner says OV20 compliance is also a base for devices with target distances beyond 20 mm (RFID Journal). That's a direction, not a product. The practical effect for most people is gentler tapping: fewer missed reads when a phone sits in a case, a watch is angled, or a lock is mounted behind a slightly thicker surface. Whether a given product delivers that depends on its antenna design and its certification, not on the standard alone.
Bottom line
CR15 moves the certified tap distance for new phones, readers and universal devices from 5 mm to 20 mm, with backward compatibility. It leaves tags free to stay at 5 mm and doesn't change hardware already sold. For your own projects, keep placing tags and antennas for 5 mm contact. Treat extra distance as a bonus, not a design assumption. You can test how your own tags behave with the NFCore app on the App Store or on Google Play.
Frequently Asked Questions
Will my current phone read from 20 mm after this?
Not because of CR15. It certifies new products; it doesn't change devices already sold, and the NFC Forum sources don't say existing hardware gains range.
Do NFC tags and stickers now work from 20 mm?
Not necessarily. The Tag class may choose OV20 or OV5 because small passive tags may not meet OV20.
Is OV20 compatible with older NFC devices?
Yes. OV20 devices stay backward compatible with OV5 devices, across Class 1 to Class 6 antenna form factors.