The Bluetooth SIG, the organization responsible for the development and certification of the Bluetooth standard, has approved the new High Data Throughput (HDT) technology. The key change affects the Bluetooth Low Energy (BLE) protocol: the maximum data transfer rate will increase from 2 to 7.5 Mbps, which is nearly four times faster. According to the developers, this will also improve the overall efficiency of data exchange between connected devices. The innovation is already enshrined in the Bluetooth Core 7.0 specification, and the first commercial devices with HDT support are expected in 2027.
What is HDT and How Bandwidth Will Change
High Data Throughput technology aims to solve one of Bluetooth's main historical problems — limited bandwidth. The transition from 2 to 7.5 Mbps opens up capabilities previously available only in proprietary wireless formats or heavier protocols. Importantly, HDT operates within the existing Bluetooth ecosystem rather than creating a competing standard, making it easier for chip and device manufacturers to adopt.
Wireless Headphones as the Main Beneficiary
The primary application for HDT will be wireless headphones. The increased bandwidth will allow for high-resolution audio transmission, as well as spatial audio and multi-channel surround sound without the need to switch to closed proprietary formats. For the end user, this means better sound quality over a standard protocol, and for manufacturers, a single open standard instead of numerous proprietary solutions.
Smartwatches, AR Devices, and Personal AI Gadgets
The technology will also benefit other categories of electronics. Smartwatches will be able to transmit workout and physical activity data to smartphones faster, while the radio module will operate for a shorter time, helping to save battery power. Spatial computing and augmented reality devices will gain the ability to exchange data more stably without a Wi-Fi connection. In addition, HDT will simplify the transfer of information from personal AI devices to smartphones for subsequent processing.
Routine Operations and Firmware Updates
Routine operations will also be affected: firmware updates for smartwatches and smart home accessories will accelerate. Bluetooth SIG CEO Neville Meijers noted that HDT will expand the application of Bluetooth not only in consumer electronics but also in commercial and industrial equipment, signaling the organization's intention to secure a foothold in the B2B solutions segment.
Specification and Device Release Timeline
HDT technology is already included in the Bluetooth Core 7.0 specification, meaning the standard is ready for certification and implementation. The first devices supporting the new technology are expected in 2027. Thus, by the end of 2026, chip and device manufacturers should already be working on adapting their products to the updated specification, with the mass emergence of HDT gadgets taking place next year.
