Introduction
- Ultra-Wideband (UWB) and Radio-Frequency Identification (RFID) are two powerful technologies used for tracking, positioning, and identification. While both serve similar purposes, they differ significantly in accuracy, range, cost, and application areas. This blog compares UWB and RFID to help you choose the right solution for your business or project.
UWB vs RFID
| Feature | UWB | RFID |
|---|---|---|
| Accuracy | Very High (10–30 cm) | Low to Moderate (1–5 meters) |
| Range | Short to Medium (up to 100 m) | Short (passive: up to 10 m, active: up to 100 m) |
| Latency | Very Low (real-time) | Medium |
| Cost per Tag | High | Low (especially passive RFID) |
| Power Source | Battery-powered tags | Passive (no battery) or active (with battery) |
| Interference Tolerance | High (works near metal, in cluttered environments) | Medium (can be affected by metals/liquids) |
| Use Cases | Precise tracking (healthcare, factories) | Asset tracking, inventory, access control |
When to Use UWB
- When you need real-time tracking with centimeter-level precision.
- Ideal for healthcare, robotics, high-security access, and smart manufacturing.
When to Use RFID
- When you need low-cost tagging for large volumes.
- Suitable for inventory control, retail, supply chain, and library systems.
Conclusion
- Both UWB and RFID offer unique advantages, but the choice depends on your needs. If precision and speed are critical, UWB is the right fit. If you’re managing large quantities and need an affordable solution, RFID is the better option. Understanding the trade-offs between them is key to building efficient and cost-effective systems.
