Bluetooth Sets Sights on Hi-Res Lossless Audio Standard by October 2026

Bluetooth SIG reveals ambitious roadmap for wireless technology, projecting 7.7 billion device shipments by 2029

The Bluetooth Special Interest Group (SIG), the standards organization responsible for developing Bluetooth specifications, certification, and promotion, held its “Bluetooth Tokyo Seminar 2025” today, October 16, unveiling the latest forecasts for Bluetooth device shipments and an ambitious technology roadmap that includes standardization of high-resolution lossless audio transmission.

Bluetooth Sets Sights on Hi-Res Lossless Audio Standard by October 2026

A Vision for a Better Connected World

Bluetooth SIG has updated its guiding vision to “Creating a Better World Through the Power of Connection”, according to Ken Kolderup, Chief Marketing Officer of Bluetooth SIG. This refreshed vision organizes the organization’s goals around five key perspectives: healthy, sustainable, productive, accessible, and convenient living.

Through the evolution, protection, and promotion of Bluetooth technology, the organization aims to bring together innovative companies and engineers to realize this vision.

Explosive Growth Projected Through 2029

The numbers paint a picture of continued dominance for Bluetooth technology across consumer and commercial applications. Annual Bluetooth device shipments are expected to exceed 5.3 billion units in 2025 and reach approximately 7.7 billion units by 2029. The Bluetooth SIG community now includes over 40,000 member companies, with approximately 1,000 new companies joining annually.

While Bluetooth dual-mode devices supporting both Bluetooth LE and Classic remain mainstream for platforms like smartphones and tablets, Bluetooth LE-only devices are experiencing rapid growth across various industries. These LE-only devices are projected to grow at a compound annual growth rate (CAGR) of 22% over the next five years, matching dual-mode device shipment volumes by 2028.

Japan maintains a strong position in the global Bluetooth ecosystem, ranking third worldwide in both member company count and certified product numbers.

Audio and Wearables Lead Consumer Adoption

Bluetooth audio peripherals are expected to reach approximately 900 million annual shipments in 2025, testament to the technology’s success in wireless audio proliferation. Other consumer segments are also showing robust growth:

Human Interface Devices (HID): Keyboards, mice, and game controllers projected at 386 million units annually
Item trackers: Loss prevention tags expected to ship 80 million units in 2025
Wearables: Smartwatches and health monitoring devices forecast at 323 million units
Clinical monitoring: Patient monitoring equipment anticipated at 36 million units

Healthcare adoption continues to accelerate, with Bluetooth increasingly integrated into weight scales, thermometers, implantable devices, vital sign monitors, and wearable ECG transmitters.

Enterprise and Sustainability Applications Expand

Bluetooth technology is making significant inroads in industrial productivity and sustainability:

Bluetooth asset tracking tags are projected at 240 million annual shipments, and by 2026, approximately 45% of wireless condition monitoring sensors are expected to feature Bluetooth connectivity.

Electronic shelf labels (ESL), which are replacing traditional paper price tags, are expected to reach approximately 138 million annual shipments by 2029. Major retailers, including Seven-Eleven convenience stores in Japan, have already begun implementation. Smart labels for logistics applications are projected to ship 140 million units by 2029.

Technical Roadmap: Hi-Res Audio and Ultra-Low Latency

With over 50 specification development projects constantly underway, Bluetooth SIG highlighted several areas of significant evolution:

Device Networks: Supporting connections to thousands of devices for large-scale lighting control systems

Auracast: Enabling connections to multiple audio devices simultaneously

High-Precision Ranging: Distance recognition technology for loss prevention networks and digital keys, defined in Bluetooth 6.0 as “Channel Sounding” technology for secure and reliable access control systems in vehicles, homes, and commercial offices

Coming Soon: Breaking the Quality and Speed Barriers

Several game-changing capabilities are in active development:

Ultra-Low Latency HID: Achieving unprecedented low latency for mice, keyboards, and game controllers

Hi-Res & Lossless Audio: Standardization of high-resolution lossless audio transmission, with development also targeting spatial audio and surround sound capabilities

High Data Throughput (HDT): Targeting support for data rates up to approximately 8 Mbps to accommodate larger media streaming capacity

High-Frequency Band Support: Enabling Bluetooth LE operation in 5GHz and 6GHz bands

Significantly, Bluetooth SIG revealed that standardization of “Hi-Res & Lossless Audio” and “High Data Throughput (HDT)” is targeted for around October 2026.

Demonstrations Show 4x Speed Increase

At the seminar’s experience area, demonstrations showcased both high-precision ranging and high data throughput capabilities. The HDT demonstration revealed that while current “2M PHY” technology achieves maximum transmission speeds of approximately 1,402 kbps, the HDT7.5 Format1 under development achieves 5,706 kbps—approximately four times faster.

The high-precision ranging demo displayed real-time distance measurements between devices, with values updating dynamically as devices were moved closer or farther apart.

Industry Collaboration on Display

The exhibition floor featured booths from major industry players including Cear, Cornes Technologies, Silicon Laboratories, TÜV Rheinland Japan, UL Japan, Ellisys, Gailogic, and Musen Connect, showcasing Auracast-compatible devices, the latest Channel Sounding-enabled models, and Bluetooth logo certification services.

As Bluetooth technology continues to evolve, the upcoming standardization of lossless high-resolution audio transmission represents a significant milestone for audiophiles and the wireless audio industry. Combined with dramatic improvements in data throughput and latency reduction, these developments position Bluetooth to remain the dominant wireless connectivity standard well into the next decade.