Keep their gear. Add Fi.

Match your tracker to an adapter for the collar or harness your dog already wears.

Fi Mini Compact Adapter

Fi Mini Compact Adapter

Fi Mini · compatible collars or harnesses

From $55.00

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Fi Compact Adapter

Fi Compact Adapter

Fi Series 2, 3 or 3+ · compatible collars or harnesses

From $55.00

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Fi 3+ Behavior Adapter

Fi 3+ Behavior Adapter

Fi 3+ · collar-only behavior-tracking placement

From $75.00

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Details & compatibility

Add a compatible Fi tracker to gear your dog already wears. EDG adapter options are organized by Fi generation, placement, strap width and hardware so you can choose the setup that fits the collar or harness instead of replacing gear that already works.

Fi Mini uses the Mini Compact Adapter. Fi 3+ offers Compact for compatible collars or harnesses, while the Behavior Adapter is a collar-only option for the intended behavior-tracking position.