GLADSMILE ZF550 GPS Wireless Dog Fence for 2 Dogs, Custom or Circular Boundary

GPS boundary modes let you shape an outdoor containment area around the space your dog actually uses. The GLADSMILE ZF550 offers a custom boundary for irregular yards and a circular option for simpler setups, with no buried wires required. Choose the layout that suits your property, then use the collar’s beep, vibration or static correction settings as part of boundary training.

For a temporary setup at a campsite or a regular outdoor area at home, its portable design and rechargeable battery make it easy to use in different settings.

Why it’s worth it

The choice between custom and circular boundaries is useful when outdoor spaces vary. A circular layout provides a straightforward way to define an area, while custom mode can follow an irregular yard or terrain. You can adjust the boundary range from 49 ft to 6561 ft, helping tailor the setup to a smaller outdoor space or a larger property. Because the system uses GPS rather than buried wire, there’s no wire-laying step when setting up the boundary.

The collar provides beep, vibration and static correction modes, with adjustable levels for each. The manufacturer advises starting with sound or vibration and increasing levels gradually if needed. This gives you a range of cues to use during boundary training. An automatic memory function saves the last centre point and settings, so they don’t need to be entered again each time you power on.

Worth noting

The collar is adjustable up to 28 inches and is described as suitable for dogs weighing 15–120 lbs. Its IPX7 waterproof protection supports use in rain and wet grass, making it practical for outdoor routines in changing conditions. The rechargeable system offers up to 40 hours of runtime per charge, which can help reduce interruptions during trips or regular use around the property.

The two boundary modes are alternatives rather than simultaneous settings. Custom mode is the more adaptable choice for an irregular area, circular mode is suited to a simpler boundary. If you move the training area, reset the parameters before use so the boundary is set for the new location.

Practical tips

Start by choosing the boundary mode that matches the shape of the area: use custom mode for an irregular yard or terrain, and circular mode for a simpler layout. Set the boundary around the outdoor space where your dog can explore, and introduce the collar’s cues gradually, beginning with beep or vibration as advised by the manufacturer. The saved centre point and settings can make a familiar daily setup quicker to resume, after relocating, reset the parameters for the new training area.

For camping or other temporary outdoor use, the portable format avoids the need to install buried wire. Charge the system before heading out, and use the adjustable collar to fit your dog within the stated weight range.

Before you decide

Can I use custom and circular boundaries at the same time? No. Select the mode that best matches your dog’s activity area, the two modes cannot run simultaneously.

Which mode suits an irregular yard? Custom mode is designed to accommodate irregular yards or terrain. Circular mode is available for a simpler boundary setup.

Can the collar be used in wet weather? The collar has IPX7 waterproof protection and is intended for outdoor conditions such as rain and wet grass.

Buying verdict

The GLADSMILE ZF550 is a practical fit for dog owners who want a portable GPS boundary with a choice of layouts, adjustable cues and a rechargeable design. Its custom mode supports less regular outdoor spaces, while circular mode keeps a simpler setup available for everyday use or travel.