ColMi R03 12

A practical and affordable smart ring with a set of built-in sensors for obtaining information about your health, an energy-efficient Bluetooth 5.0 interface module, a protected dust-proof and waterproof case (IP68 protection, you can swim), decent battery life, and a complete compact case for charging and storage. It can determine your heart rate, skin temperature, and blood oxygen saturation.

It also supports measuring the number of steps taken, approximate energy consumption, and stress level assessment. The list of supported functions allows us to characterize the ColMi R03 12 smart ring as a full-fledged small-sized fitness tracker that can replace a smart bracelet. This gadget is positioned as a product in the basic price category of 2024 and is aimed at budget users who monitor their health and follow their own style.

The ring is available in seven different sizes (internal diameter from 17.4 to 22.3 mm), which makes it possible to make a choice taking into account individual anatomical features. You can also choose one of two color options: silver or gold. The outer shell of the ring is made of lightweight titanium alloy, and its inner surface is coated with a hypoallergenic polymer. Based on the data collected by the ring, the QRing app for Android and iOS builds visualizations and creates useful recommendations.