Fi’s smart collars and activity monitors provide dog owners with peace of mind through connected data and tracking. Aruliden partnered with Fi to reimagine its flagship product, making it smaller, more durable, and more stylish for dogs of all sizes.

Through a design-led innovation process, we rebuilt the device from the ground up. Fi Series 3 introduces a sleek form factor that enhances its technological sophistication while integrating seamlessly with the Fi app and digital platform.

The redesigned collar is significantly lighter and smaller, expanding accessibility for small breed owners. A new endlink system allows users to easily swap styles, colors, and sizes through a simple slide-and-lock mechanism, supporting both Fi-designed accessories and third-party collaborations.

Inside the home, Fi charges via a wireless dock and connects through Bluetooth and home networks. Outside, embedded GPS and LTE work together to deliver reliable tracking wherever dogs go.