The Oura Ring 4 (left) has receded sensors that make it more comfortable compared to Oura Ring 3 (right). Nina Raemont/ZDNET
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Considering buying an Oura Ring to track your sleep, activity, or stress? You may be weighing between the ever-popular Oura Ring 3, and its successor, the Oura Ring 4.
Also: I compared this subscription-free smart ring to my Oura and here's how it fared
I tested both smart rings over the past two years, and can confidently say that the latest Oura Ring 4 is an impressive and well-designed smart ring that blows its competitors (and even the Ring 3) out of the water.
But does that mean you should buy the newer Ring 4 instead of the less expensive Ring 3 that's frequently on sale? It all depends on what features you prioritize in a smart ring. I break down the differences below.
Specifications
Oura Ring 3 Oura Ring 4 Battery life Up to seven days Up to eight days Charging time Between 20-80 minutes Between 20-80 minutes Sizes 6-13 4-15 Material Titanium exterior and epoxy interior Fully titanium Finishes Black, brushed titanium, gold, silver, rose gold Black, brushed silver, gold, silver, rose gold Starting price $300 $350
You should buy the Oura Ring 4 if...
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