Factcheck:
Viral videos in China showed Huawei smartwatches reading:
- “heart rate”
- “blood oxygen”
from oranges, bananas, and other fruit. These videos sparked skepticism about the accuracy of the watch — not excitement about a biological discovery.
Independent tests with Apple Watches and other brands did not reproduce the effect, which strongly suggests:
- the Huawei watch algorithm is over‑sensitive
- the readings are false positives
- the fruit has no biological pulse