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What's difference between Bluetooth 4.2 and Bluetooth 4.1 ?
Jul 31, 2017


In short , Bluetooth 4.2 is faster, more secure , Low-power IP


Bluetooth 4.2 introduces several new features that improve speed and privacy over Bluetooth 4.1 but the main advantage is allowing chips to use Bluetooth over Internet Protocol version 6 (IPv6) for direct Internet access. With this, the possibilities expand beyond thoseof current designs and markets to include any type of Bluetooth device requiring speed and security in the IoT.

Why use BLE 4.2 instead of BLE 4.1? The Bluetooth SIG recommends implementing Bluetooth 4.2 in all new designs and requires the same qualification process as all other Bluetooth designs. Devices using Bluetooth Smart will be backward compatible with Bluetooth 4.0 or 4.1 devices that also implement the low energy features. Devices implementing the (BR/EDR) Core Configuration will be backward compatible to all adopted Bluetooth Core versions beginning with 1.1 that also implement Bluetooth BR/EDR.


Some bluetooth earphones manufacturer use bluetooth 4.2 now.

And will have more products manufacturer use too.


Key Bluetooth 4.2 Features Not Available with Bluetooth 4.1

IoT Capabilities:

  • Low-power IP (IPv6/6LoWPAN)

  • Bluetooth Smart Internet Gateways (GATT)

With BLE 4.2 Bluetooth Smart sensors can transmit data over the internet.


  • LE Privacy 1.2

  • LE Secure Connections

With new, more power efficient and highly secure features, BLE 4.2 provides additional benefits allowing only trusted owners to track device location and confidently pair devices.


  • 250% Faster

  • 10x More Capacity

Compared to previous versions, BLE 4.2 enables 250% faster and more reliable over-the-air data transmission and 10x more packet capacity.

Designing with BLE 4.2 requires no mandatory features but, similar to previous versions, manufacturers are required to implement all errata applied in order to comply with the BLE 4.2 specifications.


Bluerin International Limited, which earphone supplier from china, release bluetooth 4.2 version bluetooth earphones now.


Learn more, visit  .