Smart rings are no longer just step counters. Circular has launched the Ring 3 Pro and Ring 3 Slim, becoming the first in the category to add contactless payments — beating Oura, which hasn't offered that feature yet.
What the Circular Ring 3 can do
Both models combine health tracking with an NFC chip for payments and haptic feedback. That means the ring doesn't just monitor heart rate and sleep — it can also complete a transaction at a terminal, much like a card or a phone with a Pay service.
- Circular Ring 3 Pro — the higher-end version with an expanded sensor set.
- Circular Ring 3 Slim — a thinner option for those who prioritize comfort.
- NFC payments — tap-to-pay without a phone or card.
- Haptic feedback — the ring vibrates to signal events, such as payment confirmation.
Why it matters for cross-border payments
Contactless payments in wearables are another way to tie a payment instrument to everyday actions. For virtual card users, this means payment credentials increasingly live not in plastic but in digital form: in an app, tokenized, on a device on your finger. If you already have a virtual card, the question is whether a specific ring supports tokenization and what limits the issuer sets.
What it means in practice
It's too early to say rings will replace cards and phones. But the trend is clear: payment functions are moving into wearables, and competition among Oura, Circular, and others will push the market. For users, that's a plus — more ways to pay for a subscription, service, or purchase without reaching for a phone. The key is to watch how your card issuer handles tokenization on third-party devices and what fees may apply.
The arrival of NFC in smart rings signals that contactless payments are becoming a background feature rather than a separate option.
Stay tuned: if Circular or other manufacturers open support for virtual card tokenization in rings, it could significantly simplify paying for cross-border services.
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