The Bluetooth SIG has announced version 6.1 of the Bluetooth Core Specification, introducing enhanced privacy features and power efficiency improvements. These updates include randomized Private Address (RPA) intervals and autonomous RPA management within devices, boosting security and battery life.
Affected: Bluetooth devices, IoT gadgets, wearable tech, earbuds, fitness bands, and related hardware.
Affected: Bluetooth devices, IoT gadgets, wearable tech, earbuds, fitness bands, and related hardware.
Keypoints
- Bluetooth 6.1 enhances user privacy by randomizing RPA update intervals to between 8 and 15 minutes by default, with customization options from 1 second to 1 hour.
- The new specification uses a NIST-approved random number generator to select update timing, making device tracking more difficult.
- Improved power efficiency is achieved as the Bluetooth chip autonomously handles RPA updates without waking the host device.
- This autonomous management conserves CPU cycles and memory, extending battery life for small devices like earbuds and IoT sensors.
- Support for Bluetooth 6.1 hardware and firmware is expected to roll out gradually, with initial devices likely arriving in 2026.
- The new features require hardware and firmware support, meaning early adoption may not immediately include all enhancements.
- This update marks a significant step forward in privacy and energy efficiency for Bluetooth-connected devices.