Wi-Fi HaLow: The missing link in IoT connectivity

Joanna Krawczyk

IoT Python & Edge AI Developer

23 stycznia 2026

In the world of the Internet of Things (IoT), choosing a connectivity protocol has always been an art of compromise. We either prioritized high throughput at the expense of range, or long range at the cost of speed and more complex infrastructure.

The current IoT landscape is divided between two extreme approaches:

WPAN – Wireless Personal Area Networks (e.g., RFID, Bluetooth), which are highly energy-efficient but offer very limited range and low throughput.
LPWAN – Low Power Wide Area Networks (e.g., LoRa), which provide excellent range with low power consumption, yet are characterized by even lower data rates.

The answer to these challenges is Wi-Fi HaLow, based on the IEEE 802.11ah specification. This standard was designed to bridge the technological gap by delivering a balance between range and data transmission speed, while maintaining minimal power consumption.

Key technical parameters that differentiate Wi-Fi HaLow

The Wi-Fi HaLow standard introduces a range of innovations compared to traditional Wi-Fi, making it an ideal solution for broad applications—especially in IoT systems:

Long Range – Wi-Fi HaLow operates in the sub-1 GHz frequency band, enabling significantly greater range than conventional Wi-Fi networks operating at 2.4 and 5 GHz. In open areas, the declared range can reach up to 1 kilometer.

Signal Penetration – The new standard provides resilient and stable connectivity in demanding environments. Thanks to its lower frequency, the signal penetrates walls and other physical obstacles much more effectively than traditional Wi-Fi operating at 2.4/5/6 GHz.

Energy Efficiency – Wi-Fi HaLow enables devices powered by coin-cell batteries to operate for months or even years. One of the key factors behind this optimized power consumption is the implementation of the TWT (Target Wake Time) mechanism, which schedules device sleep and wake cycles.

Security – The standard supports the latest and most advanced security protocols, such as WPA3 encryption and Wi-Fi Enhanced Open™. It also supports AES encryption for OTA transmissions, helping secure remote device updates (Over-The-Air firmware updates).

Scalability – A single Wi-Fi HaLow access point (AP) can support up to 8,191 devices—more than four times the capacity of traditional access points.

Technological comparison: Wi-Fi HaLow vs. LoRaWAN

The table below presents a comparison with one of the most popular long-range standards currently in use — LoRaWAN. Although both technologies target “long-range” connectivity, their intended applications are different.

	WiFi HaLow	LoRaWAN
Range	Over 1 km. Performs better in environments requiring strong obstacle penetration (walls, ceilings).	Over 5 km. Optimal for highly distributed devices over long distances.
Throughput	From 150 Kbps to over 15 Mbps. More than 600x faster than LoRaWAN. In open areas, it achieves over 1 Mbps at a distance of 3 km.	From 250 bps (at maximum range) up to approx. 22 Kbps (at the shortest range).
Energy Efficiency	Lower power consumption in applications transmitting large amounts of data.	Lower power consumption in applications with moderate or infrequent data transmission.
IP Compatibility	Native support for IP-based networks (IPv4 and IPv6), enabling easy cloud integration.	Requires dedicated gateways to enable integration with IP networks.
Security	Uses WPA3 encryption and Wi-Fi Enhanced Open™. Supports secure over-the-air (OTA) firmware updates.	Uses equally secure AES-128 encryption, though subject to greater bandwidth limitations in a given location.
Scalability	A single access point (AP) supports up to 8,191 devices.	Scalability depends on the number of gateways and local spectrum limitations.
Practical Applications	From simple sensors to HD video streaming — in networks characterized by high real-time data transmission.	Most commonly used in low-data-rate sensor networks.

Where does Wi-Fi HaLow perform best?

While LoRaWAN technology is capable of fully supporting primarily sensor networks, Wi-Fi HaLow enables bidirectional communication across a broad spectrum of IoT systems — from simple sensors to wireless HD video transmission. This capability has opened the door to innovative IoT concepts and large-scale deployments.

Commercial buildings and Industrial IoT (IIoT) applications have become some of the first areas to adopt Wi-Fi HaLow, addressing use cases that require higher throughput, reliable connectivity, and scalable infrastructure.

Industry	Application	Key Advantages Leveraged
Home Automation	Smart door locks, surveillance systems, home appliances, HVAC systems, and intelligent control of thermostats, photovoltaic panels, and home energy storage systems.	Multi-year operation on battery-powered devices. Real-time video transmission for surveillance.
Logistics & Transportation	End-to-end transport planning across the supply chain. Advanced asset tracking in large distribution centers. Connectivity between local access points (APs) in trucks or warehouses to support logistics operations.	Sub-1 GHz signal effectively penetrating transport materials. Support for over 8,000 devices from a single access point (AP).
Agriculture	Connectivity for soil parameter sensors and weather data monitoring, as well as precise livestock tracking across hundreds of acres.	Local access point (AP) range exceeding a 1 km radius. Multi-year battery life. Real-time data transmission.
Smart Cities	Centrally controlled street lighting, surveillance, and waste management systems.	Elimination of camera cabling thanks to stable long-range connectivity. Real-time video transmission capability.
Industrial Automation	Secure communication and operation of PLC controllers.	Advanced security with WPA3 and native IPv6 support.

Summary

IEEE 802.11ah technology — or simply Wi-Fi HaLow — was introduced to the market to meet the full range of Internet of Things requirements and to bridge the gaps left by previously used connectivity standards. By operating in the sub-1 GHz frequency band, it achieves significantly greater range while consuming less power compared to traditional Wi-Fi. Thanks to its ability to efficiently handle large-scale device connectivity, it is an ideal solution for applications such as Smart Homes, Smart Cities, and Industrial Automation.

Wi-Fi HaLow is not just another iteration of a familiar protocol. It is a technology that removes a major bottleneck in IoT development by combining extended radio range with native IP network performance. For developers and IT managers, this translates into simpler architectures, lower costs, and new deployment opportunities in areas where traditional Wi-Fi previously fell short.