GPS Pet & Kids Tracker with Real-Time Location Alerts
Open your phone and see where they are. The GF21 is a pocket-sized GPS locator with real-time tracking and electronic fence alerts for pets, kids, elderly relatives and cars. It needs a data-enabled SIM and a micro USB charge.
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Open your phone and see where they are. The GF21 is a pocket-sized GPS locator with real-time tracking and electronic fence alerts for pets, kids, elderly relatives and cars. It needs a data-enabled SIM and a micro USB charge.
Pocket-sized GPS locator with real-time tracking and electronic fence alerts
- lost pets
- children wandering off
- elderly relatives going missing
- vehicle theft
Know where they are before you start searching
Before: a missing dog, a wandering child or a parent who left the house, and no idea which way they went. After: a live position on your phone and an alert the moment they cross the line you set.
Live location and fence alerts in one small device
- See it live on a map
The device reports its position over the SIM network, so you check where it is right now from your phone, not just where it was.
- Set a fence, get an alert
Draw a zone around home, school or a park. When the tracker leaves it, a notification tells you, so you learn about a wander before a search begins.
- Small enough to hide anywhere
The compact matte black body fits a collar, a school bag pocket or the space under a car seat without drawing attention.
One SIM, one charge, one fence
- 1Insert the SIM
Open the SIM slot and insert a data-enabled SIM.
- 2Charge fully
Use the micro USB port on the side.
- 3Power on and confirm
Press the power button and check it reports a position on your phone.
- 4Set your fence
Draw a zone around home, school or the park, then test it.
- 5Clip it on
Collar, bag pocket or under a car seat.
What you get and what you still need
- GF21 GPS locator×1
Matte black body with GF-21 print
- Data-enabled SIM card
Not included. Needed for live tracking
- Micro USB cable and power source
Use your own if not in the box
From guessing to knowing

The minute nobody can account for
A dog bolts through an open gate. A six-year-old drifts away at a crowded market. You turn around and the gap opens: you know they are gone, you do not know where to look. Calling out and asking neighbors is all you have.

A map instead of a guess
The GF21 reports its position over a SIM connection. Open your phone, see the last reported spot and walk straight to it. Set an electronic fence and the alert arrives when the tracker leaves the zone, not after the search has started.

Set it up before the next outing
One SIM, one charge, one fence. It is an afternoon task. Test the alert by walking the device a short distance outside your zone, then clip it on and go.
Charge it, clip it, check the map
- Charge fully
Top up over micro USB before each day out.
- Fixed charge time
Overnight works well for most routines.
- Keep it dry
Avoid water and damp spots.
- Secure it
Clip firmly to a sturdy collar or zip it in a bag pocket.
- Check the SIM
Confirm the plan is active before you leave.
Bluetooth tags find things nearby. This finds them far away.
| GF21 GPS locator | Bluetooth tag | |
|---|---|---|
| Live location at distance | Yes | No |
| Electronic fence alerts | Yes | No |
| Works out of Bluetooth range | Yes | No |
| Needs a SIM plan | Yes | No |
| Charging | Micro USB | Varies |
Characteristics
Reviews
Questions and answers
Yes. The GF21 is a SIM-based tracker. Live location needs a data-enabled SIM with an active plan. Without one it cannot send positions to your phone.
It clips to a sturdy collar and the body is compact. Check your pet's size and collar strength first, and secure it so it cannot slip off.
Set the fence around the places you actually watch, such as the yard, school or park, and test it once by walking the device outside the zone. A very large fence delays the warning, so keep it tight.
It charges over micro USB. Run it through your normal routine for a week and note how long it lasts, then pick a fixed charge time such as overnight.
A Bluetooth tag only helps when you are near it. The GF21 reports over the cellular network, so you see its location at distance. Over a couple of years, one device and a SIM plan can cost less than the stress and time of repeated searches.
GPS works best with a clear view of the sky. Indoors and underground, expect the last reported position rather than a precise live point.
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