{
  "id": "circular-ring-2",
  "name": "Circular Ring 2",
  "company": "Circular",
  "category": "ring",
  "categoryName": "smart rings",
  "worn": "Finger",
  "url": "https://wearableindex.com/devices/circular-ring-2/",
  "dataUrl": "https://wearableindex.com/devices/circular-ring-2/data.json",
  "manufacturerSite": "https://circular.xyz",
  "image": "https://wearableindex.com/images/circular-ring-2.avif",
  "comparisons": [
    "https://wearableindex.com/compare/oura-ring-vs-circular-ring-2/"
  ],
  "generations": [
    {
      "name": "Ring 2",
      "year": 2026,
      "status": "shipping",
      "price": "$349",
      "priceUSD": 349,
      "summary": "Titanium ring built around an on-finger single-lead ECG with AFib detection and PPG-based blood-pressure estimation.",
      "hardware": {
        "Biometric": [
          "ECG (single-lead)",
          "PPG heart rate",
          "Blood oxygen (SpO₂)",
          "Skin temperature"
        ],
        "Motion": [
          "Accelerometer"
        ]
      }
    }
  ]
}