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OURA RING 4 was just annouced last week, which has led to some big discounts on the Gen 3 during Amazon's Prime Big Deal Days. This top-tier fitness tracker powerful combination of sleek hardware and cutting edge software can be sported on any finger (though they recommend the index finger for the best analytics).

So, if you're looking to pick up one of the best smart rings, now is a great time to buy the Oura Ring Gen 3 which is currently up to 22% off at Amazon with this early Prime Day deal. But don't hang about — Oura has discontinued this model, so once retailers like Amazon are sold out, it won't be coming back in stock.