Bluetooth SIG is preparing a series of upgrades that could substantially expand what Bluetooth Low Energy can do, from faster transfers and lossless audio to direct IP networking. The first specifications are expected toward the end of 2026, with further work extending through 2028.
- High Data Throughput (HDT), targeted for adoption toward the end of 2026, raises Bluetooth LE’s peak data rate from 2 Mbps to as much as 7.5 Mbps.
- IP Link, planned for adoption in fall 2026, will carry IPv6 traffic over Bluetooth LE using 6LoWPAN.
- Additional 5 GHz spectrum for Bluetooth LE is planned for 2027, followed by 6 GHz support in 2028.
- LE Audio work includes high-resolution and lossless audio, spatial and surround audio, and broader Auracast capabilities.
HDT is the most immediate performance change. Bluetooth SIG says a transfer that takes roughly 16 seconds today could take about four seconds with an HDT implementation, while retaining Bluetooth LE’s focus on low power consumption. The added bandwidth is intended for more than file transfers: it could support multiple simultaneous audio channels, larger sensor data payloads, and connected wearables or smart glasses.
The specification alone will not upgrade existing phones or accessories. Compatible chipsets are required at both ends of a connection, and device makers must implement the new features. As with earlier Bluetooth revisions, products using the capabilities are likely to arrive gradually after the specifications are adopted.
New spectrum and direct networking
Bluetooth LE’s planned move beyond the crowded 2.4 GHz band is another major part of the roadmap. The existing band will remain important for compatibility and less demanding devices, but 5 GHz and later 6 GHz spectrum could provide more room for fast links, lower latency and positioning applications.
Bluetooth SIG also sees higher-frequency operation as a way to advance Channel Sounding, a feature used in modern trackers to estimate distance with centimeter-level precision. The goal is not to replace ultra-wideband immediately, but to make precise location capabilities possible on less costly hardware.
IP Link would give Bluetooth LE a more direct role in IP-based systems by transporting IPv6 traffic through 6LoWPAN. That could simplify the integration of Bluetooth locks, sensors and other smart-home accessories with routers, hubs and ecosystems such as Matter, without requiring each vendor to create its own bridge to the internet.
Audio is the other large expansion area. Bluetooth SIG is working on high-resolution and lossless LE Audio standards, spatial audio, Bluetooth surround systems and a more mature Auracast platform. Future Auracast deployments could use multiple transmitters to cover larger spaces and deliver several streams at once, including different languages at an event. The organization is also working toward direct Auracast connections for headphones and hearing aids, removing the phone as an intermediary.
The roadmap pushes Bluetooth toward capabilities associated with Wi-Fi, UWB and IP networking while preserving its low-power role. The key question now is how quickly phone, accessory and chipset makers adopt the new specifications once the first standards land in late 2026.
