3 ms·
I personally find the Oura ring to be great at tracking sleep stages and various biometrics during sleep like HRV and body temp change.
by maxlamb 7y ago
I personally find the Oura ring to be great at tracking sleep stages and various biometrics during sleep like HRV and body temp change.
- redka 7y agoBut there's no way whatsoever to use to wake up at an optimal time, right?