KINEXON Glossary

UWB RTLS vs. RFID: What Is the Difference?

UWB RTLS or RFID? Discover the differences in real-time visibility, accuracy, and applications to determine the right solution for your operation.

Contact an expert

The Ultimate Benchmark: RFID vs. UWB RTLS

As manufacturing and logistics operations continue to scale and automate, transparency on the shop floor becomes increasingly critical. Technologies such as RFID and Real-Time Location Systems (RTLS) play a key role in creating visibility into assets, materials, and processes. While both approaches support tracking and identification, they differ fundamentally in how and when location data is captured. The following overview outlines the core characteristics of passive RFID and UWB-based RTLS, highlighting how each technology supports industrial operations and where their capabilities begin to diverge as requirements for real-time visibility and process automation increase.

RFID
‍has long been used in industry to identify and track assets. RFID systems are either active, with their own power source, or passive, powered by the reader’s signal. This overview focuses on passive RFID, which records identification and position data when tagged objects pass read points. Passive RFID is widely used for inventory management, access control, and process monitoring. As operations grow more complex—with more assets, people, and automated vehicles moving across shop floors—the limits of event-based tracking become increasingly clear.

UWB RTLS
provides continuous or near-real-time visibility into the location of assets, vehicles, and personnel. Most industrial RTLS solutions are based on Ultra-Wideband (UWB) technology, as it enables highly accurate and reliable positioning. Unlike traditional RFID systems, RTLS delivers ongoing location updates rather than single read events, enabling deeper insights into movement, utilization, and process flow. This allows organizations to extend traditional RFID use cases and support advanced applications such as real-time asset tracking, workflow optimization, safety monitoring, and smart factory automation.

RFID and UWB RTLS in Industrial Tracking: A Feature Comparison

Feature / Aspect	UWB RTLS	RFID
Primary Use	Real-time location tracking & process automation	Identification, inventory tracking, and checkpoint-based tracking
Accuracy	Centimeter-level accuracy, under 10 centimeters	Typically 0.5–3 m (passive RFID); active RFID can improve but rarely under 50 cm
Real-Time Updates	Continuous, real-time	Usually event-driven (on scan / checkpoint)
Coverage	Medium-range (tens of meters indoors)	Short to medium (depends on tag and reader type)
Integration with Automation	Excellent — supports dynamic processes & triggers	Limited — mostly for static or scheduled checkpoints
Cost per Asset	Higher (tags & infrastructure)	Low (passive tags), higher for active tags
Infrastructure	Requires UWB anchors / sensors	RFID readers at checkpoints / gates
Best For	Location-based process automation, asset tracking, AGV guidance	Inventory management, access control, asset identification
Limitations	Higher upfront cost, more infrastructure needed	Less precise, not suitable for real-time process automation

Comparison of RFID and UWB RTLS use cases. RFID supports inventory management, process control, quality assurance, and theft protection. UWB RTLS enables precise search and find of materials, global track and trace with real-time status, process monitoring with alerts for violations, analytics via flow charts and heat maps, paperless production with e‑Ink visualization, and improved material management for faster throughput and automated replenishment.

UWB RTLS: The More Precise RFID

Data Generation

Similarly to RFID, RTLS uses tags to generate its location data. However, instead of RFID’s stationary gate system, RTLS uses an anchor network to calculate the precise, real-time position of assets and vehicles. The anchor network continuously calculates position data via locating methods such as TDoA (Time Difference of Arrival) or TWR (Two-Way Ranging) to track moving assets and vehicles in a space.

Data Communication

Another key difference from RFID is that RTLS can dynamically communicate data, enabling full digitization of process information. For example, tags or devices can send and receive updates or warnings between the shop floor and connected software. This capability also supports advanced applications such as Assembly Tool Control, which can significantly increase productivity and throughput in sectors like automotive manufacturing.

Flexibility

RTLS also beats RFID in terms of the flexibility offered on the shop floor. While RFID gates are statically installed, RTLS anchor networks can track assets and vehicles in an entire space. Therefore, the anchor infrastructure does not need to be re-installed when production process or assembly lines are changed. This grants maximum flexibility to the dynamic production and logistics environments.

UWB can be seen as the more precise evolution of RFID, delivering frequent, real-time location updates with centimeter-level accuracy. This makes it well suited for use cases that require continuous visibility and high positional precision.At the same time, location-based process automation looks different for every company.

Some workflows only require event-based tracking at defined checkpoints, where RFID remains a highly effective and cost-efficient solution. Others benefit from continuous location data across the entire shop floor, where UWB adds clear value.

Discover uses cases with KINEXON's technology

A collage of the KINEXON RTLS Mesh product line

A collage of the KINEXON RTLS Pro Product Line

The Key of Location-Based Process Automation:
A Centralized and Technology-Agnostic Platform

The real differentiator is a centralized, technology-agnostic location platform. By integrating and normalizing data from RFID, UWB, and other positioning technologies into a single system, organizations gain a unified view of all location-based events and movements. This approach makes it possible to support a wide range of use cases—from simple checkpoint automation to continuous real-time tracking—while ensuring consistent processes, data models, and automation logic across the entire operation. It also future-proofs digitalization efforts by allowing new technologies and use cases to be added without redesigning existing workflows.

Learn more about KINEXON OS Platform

KINEXON Has Joined the Award-Winning Zebra® PartnerConnect Program as an Independent Software Vendor

This partnership marks a significant milestone as KINEXON OS has now been validated and Zebra certified to seamlessly integrate passive RFID reader data.

A Kinexon anchor mounted to a wall in a factory.

KINEXON RTLS Pro

Wired with superior accuracy - best for real-time automation use cases

This high performance real-time location system excels in large-scale industrial settings, delivering a superior position update rate. The outstanding tracking accuracy enables automation in order tracking and process management as well as the assembly, where high accuracy and real-time updates are essential.

UWB RTLS vs. RFID: What Is the Difference?

The Ultimate Benchmark: RFID vs. UWB RTLS

RFID and UWB RTLS in Industrial Tracking: A Feature Comparison