---
title: "Bluetooth to Speed Up Data Transfer Almost Fourfold: SIG Approves HDT Technology"
description: "The Bluetooth SIG has approved High Data Throughput technology, which will increase Bluetooth LE data transfer rates from 2 to 7.5 Mbps. The first HDT-supported devices are expected in 2027."
date: 2026-11-04T23:36:37.435Z
lang: en
url: https://xab.info/en/posts/bluetooth-hdt-7-5-mbps
tags: [bluetooth, bluetooth-sig, high-data-throughput, wireless-audio, smartwatches, ar-devices]
author: "Alexander Buran, Roman V."
publisher: "XAB.info"
---

# Bluetooth to Speed Up Data Transfer Almost Fourfold: SIG Approves HDT Technology

![Glowing round Bluetooth logo displayed at a tech exhibition](https://xab.info/media/2026/11/04/bluetooth-hdt-7-5-mbit-s/bluetooth-hdt-7-5-mbit-s-1.webp)

## Key Points

- The Bluetooth SIG has approved High Data Throughput (HDT) technology for the Bluetooth LE protocol.
- The maximum data transfer rate will increase from 2 to 7.5 Mbps — almost four times faster.
- Wireless headphones with high-resolution and spatial audio will be the primary application.
- The technology will accelerate data exchange for smartwatches, AR devices, and personal AI gadgets.
- HDT is included in the Bluetooth Core 7.0 specification, with the first devices expected in 2027.

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.

## Fact-Check & Sources

- [Bluetooth ускорит передачу данных почти в четыре раза уже в следующем году window-new](https://3dnews.ru/1150860/bluetooth-uskorit-peredachu-dannih-pochti-v-chetire-raza-uge-v-sleduyushchem-godu) - Primary source: HDT approval, speed increase from 2 to 7.5 Mbps, application in headphones/watches/AR, inclusion in Bluetooth Core 7.0, 2027 timeline, quote from Neville Meijers.

## FAQ

### By how much will Bluetooth data transfer speeds increase?

The maximum data transfer rate for the Bluetooth LE protocol will increase from 2 to 7.5 Mbps, which is almost four times faster.

### What devices is HDT technology primarily intended for?

The primary application will be wireless headphones for transmitting high-resolution audio, spatial audio, and multi-channel surround sound.

### When will the first devices with HDT support appear?

The first devices supporting the technology are expected in 2027; the technology itself is already included in the Bluetooth Core 7.0 specification.

### Who approves HDT technology?

The technology was approved by the Bluetooth SIG, the organization responsible for developing the Bluetooth standard.