Use a three-year total
Add the device, mandatory subscription, taxes, shipping and a reasonable allowance for replacement attachments or straps. Divide by 36 for a monthly figure or by three for an annual figure.
Do the calculation twice: once using the shortest cancellable plan while testing, and once using the longer commitment you might choose after the product proves itself.
Separate required from optional
Some devices need a plan for core GPS or cellular features. Others place video history, advanced alerts or wellness insights behind a paid tier. Put each feature you need into one of three columns: required, useful or decorative.
If a product becomes unsuitable when the plan ends, treat the subscription as part of the product price.
The replacement line
Collar mounts, clips, cases, straps and proprietary charging cables may wear out before the electronics. Check current availability and delivery cost to your country.
Read subscription cancellation terms separately from the hardware return policy. They are often different agreements.
Do not overpay for uncertainty
Long plans create the lowest advertised monthly price, but they transfer performance risk to the buyer. Test local coverage, safe-zone alerts, fit and your willingness to charge the device first.
The best value is the device that performs the required job at the lowest dependable total—not the lowest monthly number in large type.
Bottom line
Our present view
Calculate a three-year total in your own currency, but do not prepay for years until you have tested coverage, fit and app behaviour within the return window.