New solutions using Bluetooth Beacons & Tags claim to be far cheaper than their Active RFID counterpart. Here’s why it makes sense.
- Identifying and comparing costs of RFID and Bluetooth Tags
- Types of tracking tags
- RFID and BLE tags: what’s the difference?
- How do tags differ: shapes, features, and other factors
- Using Bluetooth tags for personal tracking
- Cost of Bluetooth tag IoT solutions
Manufacturers, healthcare administrators, and all kinds of other businesses use technology to track assets. More importantly, this has been going on for decades. Those companies with a long history in the business of tracking have likely tried several different kinds of real-time location systems. These days, the most common competing technologies include active RFID, Wi-Fi, UWB, BLE, and Zigbee.
Check out an extensive overview of RTLS and their applications in manufacturing, healthcare, logistics, and workplaces.
Chances are, if you’re looking into asset tracking tags, you aren’t seriously considering all of the above technologies. If you want the features and cost of RFID tags, a ZigBee system probably isn’t going to fit the bill. Or if you want extreme accuracy and have a huge budget, you won’t be using RFID.
Let’s see an example. A given solution requires room-level or 3-5 meter accuracy. The business could choose to invest in a highly accurate system using Zigbee. The results would be highly granular which is ideal…for some situations. Here, extreme granularity would only mean more data to manage and sift through as well as far larger costs.
That’s why, for these solutions requiring room level or 3-5 meter accuracy, Bluetooth tags and RFID tags are among the most commonly used tools. Wi-Fi tags are also a viable solution.
Identifying and comparing costs of RFID and Bluetooth Tags
It’s easy to get excited by the price of an affordable tag. Here’s another place we need to differentiate: are you looking for the cheapest, flimsiest tag humanly possible or do you intend to use it in a business setting where reliability and longevity are important?
This small question will determine how much you’ll be paying for your tags. It’s worth noting that, for some RTLS systems, gateways/readers will only work with certain tags. This means, a user may not be able to buy a knockoff tag and pair it with a standard reader. You’ll have to check the specifics of your chosen tools.
If you’re looking for reliable hardware to be used with a reader, here are prices you can expect:
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Types of tracking tags
Apart from the basic protocol, whether your tags use Bluetooth, RFID, or something else, there are plenty of differentiating factors to keep in mind when purchasing tags for tracking purposes. For more detail on the difference between Bluetooth and RFID, check out our in-depth study here: Real Time Location System [RTLS] Study: How do RFID and BLE differ?
5¢ tags: passive vs. active technology
There are RFID tags that are far cheaper than all of the numbers listed above; however, this is because they are an entirely different technology. These ultra-cheap solutions are generally passive technologies, acting only when the tag is brought in very very close proximity to the reader. This means, for example, an employee with a passive RFID tag for access and entry will have to scan their ID. An employee using active RFID would be able to simply walk in the rough vicinity of a reader, and they would be automatically registered.
Of course, it’s difficult to say exactly how much a tag will cost you as there are several different kinds, and–more importantly–different features will mean different returns. However, one thing remains true for all: readers are also a major cost consideration.
Once you have your assets tagged, you’ll need a device to read them. Wi-Fi and RFID readers tell a powerful story: asset tracking is a solution for massive companies with massive budgets.
Here’s the big difference: active RFID readers will cost you anywhere from $1,000 to $5,000.
This a standard price tag for such readers. This is because of the inherent nature of the two technologies. Bluetooth has a very long range, yet it’s also low energy (hence, Bluetooth Low Energy). Bluetooth SIG specifically planned it to be efficient, and their future updates will likely add to its strengths and capabilities. Wi-Fi and RFID, on the other hand, weren’t made with the explicit plan to be low energy. The result is the need for more hardware and higher price tags to achieve the same result.
RFID and BLE tags: what’s the difference?
BLE tag readers (like Gateway hardware) cost < $100.
If your requirements can be met by Bluetooth tags, then it can save money. So, when we do the math, these are the results we get: A BLE tag-based RTLS solution can cost you 1/5th the price of the Wi-Fi or RFID equivalent.
Despite this being a basic fact, every system is different. The exact cost of your RTLS will depend on what points you value. Though costs will fluctuate as technologies develop, these numbers reflect the fundamentals of each. Of course, don’t forget, Bluetooth 5 has been released and Bluetooth tags will soon be more powerful than ever before.
What’s more, BLE is supported by a growing number of WiFi access point vendors. This means that you can run a BLE-based RTLS on a WiFi network, without the need to install additional gateways, saving on hardware, installation, and maintenance costs.
Read more: Integrating WiFi and BLE to drive rapid growth