Female users, take a look! I heard that rings can also be smart with many functions and even help improve sleep. Let's explore what makes the current mainstream wearable rings stand out! MoTIv Ring The MoTIv ring is the latest smart ring compatible with iPhones. It has a smooth design and is just 8 mm wide, available in rose gold and gray titanium with seven size options. Perfect for both men and women. This professional fitness tracker monitors steps, distance, exercise time, and even heart rate. With a 5-day battery life and 50-meter waterproof rating, it’s a solid choice based on user experiences so far. Price: $199.99 (about ¥1,340) Oura Ring The Oura Ring focuses on tracking sleep quality, activity levels, relaxation, and rest. Made from enamel ceramic, it’s durable yet comfortable to wear. The ring is waterproof and ideal for swimming. It features a lab-grade sensor system, activity tracker, heart rate monitor, and a medical-grade pulse oximeter. Its companion app provides detailed health insights, including heart rate, brain activity, and temperature readings, helping users optimize their lifestyle and sleep patterns. Price: €329 (about ¥2,584) NFC Ring 2016 The second generation NFC Ring allows you to unlock smartphones, doors, and send messages. It has a more elegant design than its predecessor, featuring ceramic coating and high-end aesthetics. It’s waterproof up to 50 meters and requires no charging. Price: $54.99 (about ¥475) Ringly Ringly is a smart ring for women that connects via Bluetooth and vibrates or lights up when you receive a call or message. It integrates with your calendar to remind you of upcoming events and lets you customize notification settings through an app. While it lacks a screen, Ringly offers basic notifications and a more stylish, feminine design compared to many male-oriented wearable devices. Price: $145 (about ¥970) ORII Smart Ring The ORII Smart Ring uses bone conduction technology, allowing you to make calls by placing your finger on your ear. It acts as a Bluetooth headset worn on your finger, enabling hands-free communication. It supports voice commands with Siri or Google Assistant, letting you control your smartphone without touching it. A unique and convenient device for tech lovers. Price: $129 (about ¥860) Blinq Blinq is a luxury smart ring designed to keep you healthy and safe. It will launch on Kickstarter this fall, offering sterling silver and 12K materials with 12 different styles and gem options. It includes an SOS alarm function, displays basic activity data, and syncs with smartphone notifications using beautiful backlighting. Price: $199 (about ¥1,300) Nimb Nimb is designed to enhance women’s safety with a hidden button that sends an SOS signal to friends, family, or emergency services. In dangerous situations, it alerts you with a vibration and can contact the police automatically. Users can set up alert ranges and connect with others in the Nimb community. However, it's more of a niche product and may not appeal to everyone. Price: $119 (about ¥795) Loop We liked the concept of Loop, which was launched on Kickstarter this year, but the campaign ultimately failed. It could send distress messages with location tracking, but its design was too flashy and expensive, leading to poor performance. Price: Not available Kerv Kerv is the world’s first “contactless payment ring,†combining style with functionality. It connects to your bank card and statement, allowing payments at over 38 million locations worldwide. With an embedded NFC chip, Kerv can pay automatically at retail stores, taxis, and buses. You no longer need to carry your credit card, and you can track your transactions easily. Price: £50 (about ¥430) Altruis Altruis is an expensive smart jewelry piece known for its exquisite craftsmanship and diverse designs, such as pendants and rings. It offers basic IoT-based notifications through sound and vibration. Available in gold, rose gold, and platinum, Altruis focuses more on aesthetics and material quality than advanced functionality. Price: £290 (about ¥2,500) BioRing BioRing has a simple and elegant design that looks like an ordinary ring. It tracks food intake, calorie burn, and calorie consumption, helping users manage their weight. It includes an accelerometer, biosensor, and optical heart rate sensor, with the biosensor monitoring calorie intake. Its Scandinavian design makes it a standout product. Price: $189 (about ¥1,260) Smarty Ring The Smarty Ring is a sleek, tech-savvy device that gives a cool, futuristic feel. It allows real-time updates, remote phone control, and even helps prevent phone theft. It features an LED display visible day or night and can act as a clock, stopwatch, and timer. With Bluetooth connectivity, it delivers text, email, and other information directly to your ring. Price: $275 (about ¥1,836) Ring The Ring smart ring relies on gesture controls, but its overall experience is underwhelming. Users found it ineffective for controlling phones or smart home devices. It has been criticized as "the worst wearable device in history" and is not recommended. Price: $149.99 (about ¥1,000) Moodmetric Ring Unlike other smart rings, the Moodmetric Ring doesn’t provide notifications. Instead, it measures electrodermal activity (EDA) to reflect emotional states. While novel, it lacks practical value and hasn’t proven itself as a useful tool. Price: $269 (about ¥1,800) Siren The Siren ring is designed for women’s safety. It’s not visually striking, but its operation is simple. Female users can rotate the ring to create a loud noise, which can scare off attackers or draw attention. Price: $199 (about ¥1,300) Pulse Ring Combining a smartwatch with a ring isn’t a great idea. The Pulse Ring adds a small screen, making it bulky and unattractive. Its plastic construction feels cheap, and despite heart rate monitoring, it’s unlikely to be popular among runners. Price: $31.9 (about ¥213) Nod The Nod smart ring is worn on the middle finger and allows users to control connected devices using gestures. It interacts with smartphones, tablets, Google Glass, watches, TVs, computers, and home appliances. It can act as a 32K DPI game controller and supports multiple Nod rings working together. While innovative, its cheap texture and large size may make it uncomfortable for long-term use. Price: $199 (about ¥1,300) Transmission And Distribution Pole Steel poles are commonly used to carry several
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