Access Specification

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Weightless Specification

Weightless is an open standard for bidirectional, fully synchronised, low-power wide area public or private networks. It is explicitly intended for high performance IoT applications offering superior capacity, QoS and security with full FOTA capability.


Although it can operate in any frequency band, it is currently defined for operation in license-exempt sub-GHz frequency bands (e.g. 138MHz, 433MHz, 470MHz, 780MHz, 868MHz, 915MHz, 923MHz).


The Weightless Standard is full defined in the official Specification documents. These are now available free of charge to the IoT developer community.


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