Bluetooth 6.2 Released: Connection Intervals Reduced to 375 Microseconds

Bluetooth 6.2 Released: Connection Intervals Reduced to 375 Microseconds

Bluetooth SIG Releases Version 6.2: Enhanced Device Responsiveness with 375-Microsecond Connection Intervals

November 6, 2025 — The Bluetooth Special Interest Group (Bluetooth SIG) has officially released the Bluetooth 6.2 Core Specification, introducing significant enhancements that dramatically improve device responsiveness, security, and testing efficiency across a wide range of applications.

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Revolutionary Speed Improvements

The most notable advancement in Bluetooth 6.2 is the substantial reduction in minimum connection intervals for Bluetooth Low Energy (LE). The new specification slashes the minimum connection interval from 7.5 milliseconds to just 375 microseconds—a 20-fold improvement that enables near-instantaneous device communication.

This enhancement is particularly beneficial for applications requiring ultra-low latency, including high-performance human interface devices (HIDs), real-time human-machine interfaces (HMI), and latency-sensitive sensor systems. Gaming peripherals, industrial controls, and advanced wearables stand to gain significantly from this improved responsiveness.

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Strengthened Security for Distance Measurement

Bluetooth 6.2 introduces enhanced protection against sophisticated radio frequency attacks through improved Channel Sounding amplitude-based security measures. The specification strengthens defenses against relay attacks and spoofing attempts, making secure ranging systems more robust.

These security enhancements are especially critical for automotive applications, smart home systems, and industrial control environments where precise distance measurement and attack resistance are paramount for safety and security.

Streamlined Audio Integration and Wireless Testing

The new specification adds support for Bulk Serialization Mode in HCI USB LE Isochronous Transfer, standardizing isochronous data transmission over USB interfaces. This simplifies the Host Controller Interface (HCI) data processing workflow and optimizes Bluetooth LE Audio integration for USB-based systems.

Additionally, Bluetooth 6.2 enhances the LE Test Mode by establishing a unified control protocol for Over-The-Air (OTA) testing. This eliminates dependence on wired testing equipment, enabling manufacturers to conduct wireless testing and pushing the industry toward more efficient, cable-free testing procedures.

Implementation Guidance and Marketing Recommendations

To support developers and stakeholders in understanding the new capabilities, the Bluetooth SIG has released a comprehensive Feature Overview document for version 6.2, detailing the background and technical specifications of each enhancement.

Notably, the organization is encouraging its members to follow official communication guidelines when marketing Bluetooth-enabled products. The SIG recommends that companies focus on highlighting specific Bluetooth features and capabilities rather than core specification version numbers in product packaging, documentation, and marketing materials. This approach aims to improve clarity for end users by emphasizing the practical features and performance benefits most relevant to their experience.

Industry Impact

The release of Bluetooth 6.2 demonstrates the Bluetooth SIG’s continued commitment to innovation, providing developers with advanced tools to address evolving market demands. As wireless technology becomes increasingly integrated into daily life—from consumer electronics to industrial systems—these enhancements position Bluetooth to meet the growing requirements for speed, security, and reliability across diverse applications.

The specification is now available to Bluetooth SIG members, with implementation expected to appear in next-generation devices across multiple product categories in the coming months.

Bluetooth 6.2 Released: Connection Intervals Reduced to 375 Microseconds