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Sizing Kit - test kit to determine the appropriate size of the smart ring, includes durable plastic rings of various sizes, wear for at least 24 hours for maximum security
Smart Ring Charger - made of aluminium, anodized surface, compatible with Oura Ring 4 and Oura Ring 4 Ceramic, 5 full ring charges capacity, USB-C charging, charging time of the case 90 minutes, ring charging time 90 minutes, LED indication of the battery status of the case and the ring, waterproof against splashing water, silicone inner liner against dust, bistable stainless steel hinge, dimensions 56 × 55 × 17 mm, weight 60 g, CE and FCC certification
Der Oura Ring 4 ist ein eleganter Smart-Ring aus Titan, der Schlaf, Aktivität und Stress misst. Dieser Testbericht verrät, wie gut er sich tragen lässt, was er kann und was ihm fehlt. Er überrascht mit hohem Tragekomfort, überzeugt durch sein geringes Gewicht und könnte...
