The dog tracker market in the US has two real main players, Fi & Whistle. I’ve tested both the Whistle Switch and the Fi Series 2 collar pretty extensively by now, and have written reviews on them both. So, now comes the big question of which of these two collars is better? As always it’s not quite that simple, is it? Both offer different features and come in at significantly different price points these days, and whilst they both offer dog tracking, they both have more unique features.
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