Does the Halo Collar need a subscription?

Yes. Tracking and the virtual fences run over cellular, so a subscription is required after any trial period. Without it the collar loses its live tracking and remote fence functions.

How long does the battery last?

About 24 hours per charge, so plan on charging most days. Heavier tracking use drains it faster, and the fence stops working once the battery is empty.

Can I use it without a physical fence?

Yes. You draw wireless fences in the app and the collar corrects the dog as it approaches the boundary. It works on open property, but training the dog to the boundary takes time.

It carries an IP67 rating, so it handles rain, mud and brief swimming. Owners report it holding up in wet conditions.

Will it fit a small dog?

It comes in small, medium and large sizes, but the unit is heavy and bulky. On toy breeds it may be too large to wear comfortably all day.

How accurate is the GPS?

Halo uses its own GPS processing to improve precision, and tracking is generally reliable outdoors. Accuracy drops near tall buildings, dense trees or indoors, which can cause false corrections.