Choosing between a smartwatch and a smart ring for health tracking largely comes down to which type of data matters most to the wearer. Smartwatches suit people focused on exercise, offering accurate heart rate readings, customisable workout tracking and broader functionality such as calls, music and apps, but they need charging far more often. Smart rings, by contrast, are lighter and more comfortable to wear overnight, making them better suited to sleep tracking, and can also monitor skin temperature and stress levels linked to sleep quality.

Rather than being a strict either/or choice, some users may benefit from owning both devices for round-the-clock monitoring, though most people will manage fine with just one. Among recommended devices, the Fitbit Charge 6 is rated the best overall fitness tracker, covering ECG, skin temperature, stress and sleep data, while the Apple Watch Series 11 and Google Pixel Watch 4 are top smartwatch picks, and the Garmin Forerunner 165 stands out for runners with an 11-day battery life. For smart rings, the Samsung Galaxy Ring is highlighted as the best for sleep tracking, with the Oura Ring 4 also noted as a comfortable alternative.