An AoA anchor uses a phased antenna array to measure the exact angle of a tag's incoming signal. Multiple angles are triangulated into precise 3D coordinates. The result is a sub-meter, high-capacity, low-energy locating system ideal for healthcare, manufacturing, retail, transportation, and public security.
0.3–0.5m positioning accuracyWorks with phones, bracelets, watches, and beaconsHigh refresh rate with low tag power draw
RSSI beacons estimate the distance between the beacon and a mobile device from the strength of the Bluetooth signal. But signal strength is easily affected by walls, antenna direction, and device power, so accuracy typically stays around 5 m. It is widely available and common in retail, hotels, and tourist attractions.
5–10m typical accuracyOften needs extra tags (e.g. LoRa) for return channelsEasily disrupted by barriers and interferenceThe full technical breakdown across protocol, accuracy, power, and cost.
Bluetooth AoA enables very precise location tracking, while RSSI beacons are widely available but far less precise. If you need sub-meter accuracy and a scalable RTLS, Blueiot Bluetooth AoA meets the level of precision your use case demands.
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