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Video Overview

This teardown is not a repair guide. To repair your Oura Ring 2, use our service manual.

  1. Oura Ring 2 Teardown, Oura Ring 2 Teardown: step 1, image 1 of 2 Oura Ring 2 Teardown, Oura Ring 2 Teardown: step 1, image 2 of 2
    • This is primarily a video teardown, but intrepid iFixit community members have also submitted their own analyses. One reader in particular spent hours attempting to reverse engineer the Oura Ring 2 through the video, datasheets, and X-rays, and shared the following:

    • The two IR LED drivers should be the same type, one for each IR LED.

    • There's likely an operational amplifier for signal conditioning for the photo diode before the signal is sent to the microcontroller. (This is commonly done with these type of photo diode based health meters.)

    • If this is not a microcontroller, it could be a temperature sensor (not a thermistor).

    • A wireless charging IC, predicted based on its surrounding components and location.

    • And finally, a battery fuel gauge IC for probably determining battery health.

    • Based on all this, the second image shows the predicted block diagram.

6 Comments

Wow, I didn’t even know smart rings existed. I also think that it’d be much easier to service if the titanium shell came off in two halves so nothing would have to be bent to service the electronics.

Ethan Zuo - Reply

Check out this review of the Oura Ring for a good overview - https://youtu.be/56RPyoNSrYY

jtisdale -

Is it possible for you to share SMD Markings on all the devices?

surya mishra - Reply

same request

Marsh Cai -

I found that the battery is from here: https://www.grepow.com/wearables/smart-r...

Liphyn Pan - Reply

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