RFID and Bluetooth Low Energy (BLE) both identify and locate equipment without a cable or a line of sight. But they do not answer the same question: RFID tells you an asset went past a reader; BLE tells you where it is, continuously. Here is how to choose.
Key takeaways
- RFID (passive UHF) tags have no battery and cost a few cents to a few euros, but are only read when they pass within a few metres of a reader or a portal.
- BLE tags broadcast on their own, are picked up by a smartphone or fixed gateways up to several tens of metres away, and give real-time location indoors.
- Choose RFID for high volumes of low-cost items that go through known checkpoints (doors, docks, production steps).
- Choose BLE when you need to know where an asset is at any time, find it quickly, or trigger alerts (zone exit, temperature, idle time).
- The two can be combined on the same platform: inVirtus Cloud manages RFID, BLE and GPS assets in one place.
RFID vs BLE: the key differences at a glance
| Criterion | Passive UHF RFID | Bluetooth Low Energy (BLE) |
|---|---|---|
| How it works | The reader powers and reads the tag when it is in range | The tag transmits by itself at regular intervals |
| Typical read range | A few centimetres to about 10 m, depending on reader and antenna | Several tens of metres, up to about 100 m in open space |
| Power | No battery | Battery (several years) or battery-free with energy harvesting |
| Location | Last checkpoint passed | Continuous, room or zone level indoors |
| Infrastructure | Readers, antennas or portals at each checkpoint | Smartphone app or fixed BLE gateways |
| Tag cost | Lowest: labels from a few cents | Higher: from a few euros per tag |
| Best for | Inventories, goods in/out, high volumes | Searching, real-time location, alerts, sensors |
How RFID works
RFID (Radio Frequency Identification) uses radio waves to read an identifier stored on a tag. In industry, passive UHF tags are the most common: they have no battery and are activated by the energy sent by the reader.
The tag is therefore only “visible” when it passes near a handheld reader, an antenna or a portal. That is ideal for counting thousands of items quickly at a door or a dock, but it does not tell you where an asset is between two checkpoints.
See our industrial RFID solutions (in French).
How BLE works
Bluetooth Low Energy is a low-power version of Bluetooth. A BLE tag (or beacon) broadcasts a short signal at regular intervals. Any compatible receiver nearby picks it up: a smartphone, a tablet or fixed gateways that relay the data to a cloud platform.
With several gateways installed in a building, the platform estimates the position of each tag by zone, room or area. BLE tags can also carry sensors (temperature, movement, light) and some include a button or an e-paper display.
Typical industrial uses:
- Locating equipment in a factory, a hospital or a warehouse (tools, trolleys, containers, test benches).
- Tracking work-in-progress between production steps to measure lead times.
- Inventory without manual scanning: assets present in a zone are listed automatically.
- Alerts: an asset leaves an authorised zone, stays idle too long, or a temperature threshold is crossed.
See our BLE indoor positioning solution.
Range: the decisive difference
Range is what usually decides. A passive RFID tag must come within a few metres of a reader, so the infrastructure has to be placed exactly where assets pass. A BLE tag can be heard tens of metres away, so a few gateways are enough to cover a whole building, and a phone can find a tag even if nobody knows where it is.
Batteries, cost and maintenance
RFID wins on tag price and has no battery. BLE tags cost more, but recent designs reduce maintenance: low-power BLE tags last several years on a coin cell, and battery-free tags run on light.
The inVirtus ivBeacon EosFlex is a flexible, battery-free photovoltaic BLE tag that works under ordinary indoor lighting: no battery to replace and less electronic waste.
Which one should you choose?
| Your need | Recommended |
|---|---|
| Count thousands of low-cost items at a door or dock | RFID |
| Know where a tool or a container is right now | BLE |
| Find a lost asset quickly in a large site | BLE |
| Record each step of a production flow at fixed points | RFID or BLE |
| Track assets outdoors and between sites | GPS tracker (with BLE indoors) |
Many sites combine them: RFID for high-volume consumables, BLE for valuable equipment, and GPS trackers for assets that leave the site. inVirtus Cloud brings everything together on a single map, and you can even query it with your own AI assistant through our MCP connector.
Frequently asked questions
Is BLE better than RFID?
Neither is better in every case. RFID is cheaper per tag and needs no battery, but only reads tags near a reader. BLE costs more per tag but gives continuous, real-time location over tens of metres.
What is the range of RFID compared with BLE?
Passive UHF RFID is typically read from a few centimetres to about 10 metres. BLE tags are detected over several tens of metres, up to about 100 metres in open space.
Can RFID give the real-time location of an asset?
Only at the moment it passes a reader. Between two checkpoints, the system only knows the last place where the tag was read. Real-time indoor location usually relies on BLE.
Do BLE tags need batteries?
Most do, and last several years. Battery-free BLE tags such as the ivBeacon EosFlex run on indoor light, so there is no battery to replace.
Can RFID and BLE be used together?
Yes. inVirtus Cloud manages RFID, BLE and GPS assets on the same platform, so each asset can use the most suitable technology.
Not sure which technology fits your assets?
Tell us what you need to track and where: we will recommend the right mix of RFID, BLE and GPS.
Ask an expertSee BLE indoor tracking
