GoKawiil
Tech News
Google Wallet payment failures often stem from disabled NFC settings, incomplete card setup, or phone cases interfering with the NFC antenna. Users can troubleshoot by checking Payment Setup in the app, confirming NFC is enabled in phone settings, and testing whether removing a case resolves tap-to-pay problems. Unlike Apple Wallet, Google Wallet doesn't require opening the app since it defaults to a preset card.
Circular has released two new smart rings, the Ring 3 Pro and Ring 3 Slim, combining health tracking features with NFC-based contactless payment support and haptic feedback. The move puts Circular ahead of rival Oura in offering payment functionality directly on a smart ring.
Circular has launched its Ring 3 series, succeeding last year's Ring 2, in two versions: a titanium Pro model retaining ECG-based AFib detection, and a lighter Slim model using biocompatible epoxy but lacking ECG tracking. Both rings add vibrating alerts for alarms and reminders and an NFC chip enabling contactless payments directly from the ring.
At IFA in Berlin, Paris-based Circular unveiled the Ring 3 Pro and Ring 3 Slim, adding contactless payment support and the return of haptic vibration alerts to its smart ring lineup. The rings retain Circular's FDA-cleared ECG and AFib detection while adding new wellness features like blood pressure trends, glucose trend estimates and expanded sleep metrics.
Suica, Japan's IC transit card developed in the 1990s, stores a card ID and balance directly on its chip rather than relying on a central server. Each tap triggers a local read-write transaction with mutual authentication and a fresh encryption key, completed in under 200 milliseconds, all without a battery, powered instead by the electromagnetic field from the station reader.