New Delhi, Nov. 12 -- Smart rings have become one of the most intriguing innovations in wearable technology. They are tiny, stylish, and surprisingly powerful, offering features that can track your health, fitness, sleep, and even manage notifications from your phone. If you are planning to buy your first smart ring, it's worth knowing what to look for before making a choice. The market is growing rapidly, and understanding the basics helps you select one that fits your lifestyle and expectations.

A smart ring is a compact device that collects health and activity data using sensors. It connects to your smartphone through Bluetooth and syncs information through a companion app. Depending on the brand, it can monitor heart rate, blood oxyg...