Question about vitals

I've had my Oura Ring for about 2.5 weeks now. I'm still wearing it with my Apple Watch, mainly to compare stats. This morning I got an alert from my AW to check my vitals, saying my resting heart rate and wrist temp were elevated. My ring says my RHR was a bit elevated but no additional notices - no minor or major signs of strain or anything. This could be a fluke, but I was curious if anyone else has had this experience and which one ended up being more accurate. Not sure if my ring needs more time to establish my baseline?