HomeElectronics NewsWorld’s Smallest Bluetooth Low Energy Module

World’s Smallest Bluetooth Low Energy Module

A Bluetooth module makes creating smaller, faster IoT and wearable devices easier. It saves time, reduces costs, and supports accurate distance measurement.

World’s Smallest Bluetooth Low Energy Module
World’s Smallest Bluetooth Low Energy Module

KAGA FEI Co., Ltd., a global provider of leading short-distance wireless modules, announced today the ES4L15BA1 Bluetooth Low Energy module. The ultra-compact module, measuring just 3.25×8.55×1.00mm, is engineered to accelerate the development of next-gen IoT devices, wearables, and healthcare products that demand minimal space and maximum efficiency. Developers can cut both time-to-market and certification costs by featuring a built-in antenna and pre-established certifications.

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Wearable technology companies will find this module valuable for manufacturing compact, Bluetooth-enabled devices such as smartwatches, fitness trackers, and health-monitoring wearables. In the healthcare sector, the module is well-suited for companies designing connected health monitors and medical devices. Its precise proximity measurement capabilities are ideal for secure access or monitoring applications, which are increasingly important in modern healthcare solutions.

Consumer electronics manufacturers working on products like wireless earbuds or other Bluetooth-enabled gadgets will appreciate the performance and compact size of the ES4L15BA1. The product designers and innovators who focus on creating cutting-edge technology will find the module a valuable tool for developing new products with minimal space and maximum functionality.

The BLE module supports Bluetooth 6.0 and its advanced features, including channel sounding for precise distance measurements. This makes it suitable for applications requiring accurate proximity data, such as secure device unlocking. PSA certification support simplifies building IoT devices that meet the latest security standards.

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The module is designed for various industries and use cases, making it highly versatile. IoT developers can benefit from this product when building Internet of Things (IoT) devices that require small, efficient, and high-performance modules. It’s perfect for smart homes, smart cities, and industrial IoT applications, where space and energy efficiency are key considerations.

For more information, click here.

Nidhi Agarwal
Nidhi Agarwal
Nidhi Agarwal is a Senior Technology Journalist at Electronics For You, specialising in embedded systems, development boards, and IoT cloud solutions. With a Master’s degree in Signal Processing, she combines strong technical knowledge with hands-on industry experience to deliver clear, insightful, and application-focused content. Nidhi began her career in engineering roles, working as a Product Engineer at Makerdemy, where she gained practical exposure to IoT systems, development platforms, and real-world implementation challenges. She has also worked as an IoT intern and robotics developer, building a solid foundation in hardware-software integration and emerging technologies. Before transitioning fully into technology journalism, she spent several years in academia as an Assistant Professor and Lecturer, teaching electronics and related subjects. This background reflects in her writing, which is structured, easy to understand, and highly educational for both students and professionals. At Electronics For You, Nidhi covers a wide range of topics including embedded development, cloud-connected devices, and next-generation electronics platforms. Her work focuses on simplifying complex technologies while maintaining technical accuracy, helping engineers, developers, and learners stay updated in a rapidly evolving ecosystem.

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