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Updated on 1/15/2024

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The world’s smallest GPS trackers can be incredibly small. Once the size of a brick some can now fit on your finger.

GPS Tracker on Fingertip

New features have arrived, too. Some have…

  • SOS buttons
  • Audio eavesdropping capability
  • Integration with Google Maps
  • Speed reporting
  • Geo-fencing with automatic alerts
  • Disable vehicle
  • Updates every five seconds
  • Wireless recharging
  • Worldwide coverage
  • Bluetooth – for tracking the last few feet

Not only are GPS tracker devices getting smaller, but prices are tracking lower. You can pick up a small GPS tracker chip for as low as $6.40 on eBay (free shipping from China!) up to $399.00 (that one is a house arrest ankle bracelet.)

How Small Are the World’s Smallest GPS Trackers?

GPS trackers can be as small as 10x10x5.8 mm and weigh just 2.5 g (0.09oz). This means you could easily be carrying a small GPS tracker in your pocket without ever knowing it. While this makes it useful for some, it’s a nightmare security risk for others.

They’re thin, lightweight, Thin GPS Tracker Three Fingers - Horizontal Thin Tracker Held in Fingers - Horizontal

GPS Module held by Tweezers and have tiny components.

GPS Circuit Board with Microphone You get the idea. These things are now very small, easy to hide, and packed with features.

The question shouldn’t be what is the world’s smallest GPS tracker though, it should be what is the most useful small tracker. There’s no use having a tiny tracker if it doesn’t work well, and it’s a combination of things that make a GPS tracker device useful.

The Smallest GPS Trackers Aren’t Always the Best

When you’re looking for a GPS tracker it’s important you don’t get carried away with size. Yes, it’s an important element, but there are other things to consider as well.

We can learn a lot from the mistakes of others when making our decision. Online purchaser reviews are helpful this way. Small and cheap GPS tracker devices reportedly have their problems.

  • Difficult to impossible to program correctly.
  • Long reporting delay times.
  • No customer service.
  • Often report inaccurate locations.
  • Poor construction.
  • Poor battery life.

The market’s sweet spot is found for just a few dollars more. Amazon’s bestseller is Tracki, at $16.88. Reviewed 35,151 times, it rates an impressive 4.1 out of 5 stars.

As of today one eBay seller reports 4,786 Tracki’s sold.

Tracking Tracki does require a service plan. The subscription cost is about 65 cents per day, monthly; dropping to 33 cents per day, biannually.

The point is, GPS tracking is really mainstream. Almost anyone who wants to track you can afford to track you.

Should you care?

The short answer is, maybe. Let’s take a look at the most common ways GPS tracking is being used these days.

GPS Tracker Devices: The Good, The Bad and The Ugly

Good uses for GPS trackers include protecting children, older adults, and finding lost animals.

Bad uses debatably include stalking and spying on significant others. Of course, the debate depends on if you are the tracker or trackee.

Ugly. There are also big brother type tracking uses. Renting, leasing, or financing a vehicle? You can be pretty sure the dealership or rental company has installed a difficult-to-find, and deactivate, tracker. As a driver, you may not like it, but these are legitimate and legal uses.

Want to lower your vehicle insurance rates?

Your insurance company may ask you to install one of their “telematics devices” voluntarily. This electro-leach, in addition to GPS tracking, taps into your vehicle’s computer systems.

Lower premiums are an ugly privacy trade-off. The information your systems hold is massive.

Even without your permission, “most modern cars have wireless systems that can transmit the telematics data to the manufacturer.”

Make Orwell Fiction Again: How to Find GPS Tracker Devices

If you have the feeling you are being tracked, trust your instincts. It’s not a casual thought.

Given the GPS tracker’s size and sporadic transmissions, finding one secreted on or within a vehicle will require help. People generally choose one of these three options find GPS trackers:

1. A self-search is the most economical way to find an unwanted GPS tracker device. Amateur installations may be easily found, but generally, self-search success rates are low.

Tips to increase self-search success rates:

  • Avoid expensive electronic detection gadgets. Their false alerts create confusion and waste time. Spend the money on a lighted inspection mirror. It is your best tool. Cost: ≈ $12.00
  • Visually inspect the most likely placement locations: wheel wells, undercarriage, engine compartment, trunk, under seats and the dashboard. Be sure to check the vehicle’s OBD-II port for a plug-in GPS tracker.

GPS Tracker Hiding in a Typical OBD-II Plug GPS Tracker Waterproof Case with Magnets 2. Visit a car dealership. For a moderate fee a service department tech can inspect the entire vehicle. The tech may not know exactly what to look for, but they will spot what doesn’t belong there, quickly. Additionally, they have wiring schematics, and special tools to remove panels and headliners.

180º Photo of a Wheel Well. Murray Associates Case Photo. 3. If the adversary is moderately skilled, or hires an auto electronics installer to plant a GPS tracker, a more expensive option is required — a professional inspection.

Enlist the services of a Technical Surveillance Countermeasures (TSCM) firm. They know what to look for, and where to look. TSCM techs may, or may not, have access to a car dealership or garage lift. However, most have special undercarriage cameras which do that part of the job quite well.

A professional TSCM inspection will provide:

  • Specialized expertise and instrumentation.
  • An expert witness should the case go to court.
  • The most peace of mind.
  • A TSCM inspection is the best option for success.


GPS tracker attributes:

  • Small. However, being the smallest does not mean the best.
  • Affordable. The average price of $20. to $70., offers little deterrent to anyone who wants one.
  • Easily Obtainable. On-line shopping with next day delivery.
  • Easy Operation. Some GPS trackers only require five minutes to set-up.
  • Feature Rich. Some extra capabilities include: audio eavesdropping, instant smartphone mapping, automatic geo-fencing alerts, and speed reports, in addition to simple GPS tracking.

Some GPS tracker devices are helpful. Some invade privacy.
All can be found.

If your business faces security risks from small GPS devices, then contact us for a full inspection. 

GPS Tracking Map Eye


Murray Associates is an independent security consulting firm, providing eavesdropping detection and counterespionage services to business, government and at-risk individuals.

Headquartered in the New York metropolitan area, a Murray Associates team can assist you quickly, anywhere in the United States, and internationally.

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