Stuck between two sizes. Both have their pros and cons

Hi everyone! I made a list of the fittings for oura ring size 8 and 9 and I’m stuck in between which size is best.

Size 9
Fit fits on my index finger and middle finger
Is too big for my ring finger
I can sleep comfortably with it at night
I can work out with it, including weightlifting, running, and walking
If fits comfortably on my middle finger
During the day it can become just not as snug on my index finger, but still snug enough, but the size 8 fits better
When my hands are less swollen it’s not as snug on my middle finger.

Size 8
Fits more snug on my index finger, but still comfortable
I can sleep with it comfortably and if I need to switch my index, I just switch it to my ring finger
Fits my ring finger very comfortably
Does not fit my middle finger at all potential for getting stuck
I do have it on my right hand, which I wanna switch it to my left
Ok now it fits on my middle finger when it’s not swollen
Currently on left index and it’s about the same as on my right side in terms of fitting
Doesn’t get too swollen with workouts.

I’m going to give it another 24 hours to see which is best.
My concern is I’m scared if I stay with the 9, I will have inaccurate data due to the sensors not touching my finger as much as the size 8.
When I make a fist with the size 9, there is a tiny gap on my index finger, no gap with size 8

What’s everyone’s experience with the sizing ?

Posted Jul 29, 2026, 1:08 PM UTC

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