Fi can grow with your puppy! We designed the Fi Collar to be comfortable and safe to wear throughout all stages of life.
For a growing puppy, you first need to purchase a Fi Collar Kit. See: What's Included With a Fi Collar "Kit" Purchase? For puppies, we recommend buying a size Extra Small, Small or Medium kit to get started. This size choice varies depending on the growth stage your puppy is in when you bring them home after adoption, rescue, etc.
The Fi Band you receive in your collar kit is interchangeable, but limited to their series. Therefore, you can purchase additional bands as your puppy grows ($29/each). Our Fi Bands range from a size Extra Small to Extra Large dependent on the Fi Collar Series you order. Click here to purchase additional bands for the Fi Collar Series needed through our online shop. Once you receive your band(s), here is a guide on how to Replace the Fi Band.
To decide what size band to purchase when your puppy is done growing, you can use Fi's sizing guide. See: What Size Fi Collar Should I Order? We suggest choosing a size based on the breed recommendation that matches your dog's breed. The breed listed in the sizing guide is based on the breeds average full grown size.
Fi growing with Jax:
