Overview
LoRa and Wi-Fi solve different problems, and most projects that struggle with connectivity chose the wrong one for the job rather than implementing either poorly. The decision comes down to three factors: how far the signal needs to travel, how much data needs to move, and how much power is available.
Range and Power
LoRa is built for long range at very low power — kilometres in open terrain, with node power draw low enough to run for years on a small battery in duty-cycled applications. Wi-Fi's range is measured in tens of metres indoors, and its active transmit current is high enough that battery-powered Wi-Fi devices typically need frequent recharging or a mains connection. If a sensor needs to sit somewhere remote and report in occasionally, LoRa wins on power alone.
Data Rate and Infrastructure
Wi-Fi's data rate is orders of magnitude higher than LoRa's, which makes it the only realistic choice for anything involving images, audio, or frequent high-resolution data. It also plugs directly into existing router infrastructure and the internet. LoRa is built for small, infrequent payloads — sensor readings, status codes, short commands — and typically needs a gateway to bridge to the internet, which is an added piece of infrastructure Wi-Fi doesn't require.
Choosing the Right One
Use Wi-Fi when the device is near existing infrastructure, has access to reliable power, and needs to move meaningful amounts of data. Use LoRa when the device is remote, battery-powered, and only needs to send small amounts of data occasionally. Some products use both — LoRa for battery-powered field sensors, Wi-Fi at the gateway that aggregates and forwards their data to the cloud.
How PAK-EL LAB Can Help
PAK-EL LAB designs both LoRa and Wi-Fi based embedded systems, and helps clients choose the right connectivity approach before committing to a hardware architecture. If you're weighing this decision for a new product, our team can help scope it.
Related service: RF, LoRa & Satellite Communication