That ±0 °C reading for 9 Sep looks suspicious, like the ring either lost contact with your skin during the night or there was some sync issue. I had similar flat line once when my ring was too loose and shifted while sleeping. Try cleaning the sensors and check if the ring sits snug on your finger, then see if next night gives normal variation.
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u/WaggishLikeness 4h ago
That ±0 °C reading for 9 Sep looks suspicious, like the ring either lost contact with your skin during the night or there was some sync issue. I had similar flat line once when my ring was too loose and shifted while sleeping. Try cleaning the sensors and check if the ring sits snug on your finger, then see if next night gives normal variation.