How does the sleep tracking accuracy on my old Apple Watch Series 4 compare to the newest models when looking at deep and REM sleep data?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
How does the sleep tracking accuracy on my old Apple Watch Series 4 compare to the newest models when looking at deep and REM sleep data?
3 real searches · 1 real-search pass
Apple Watch sleep stage accuracy deep REM Series 4 compared newer models validation polysomnography studyGoogle ↗
OBSERVED
Apple Watch Series 4 sleep stages watchOS 9 supported sleep tracking hardware sensors newest Apple Watch sleep stagesGoogle ↗
OBSERVED
Apple Watch sleep stage tracking accuracy study REM deep sleep Apple Watch Series 8 Ultra 2 polysomnographyGoogle ↗
OBSERVED
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
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Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
Classifying 3 queries…
Searches and sources
ChatGPT3 real searches · gpt-6
Apple Watch sleep stage accuracy deep REM Series 4 compared newer models validation polysomnography study Google ↗
Apple Watch Series 4 sleep stages watchOS 9 supported sleep tracking hardware sensors newest Apple Watch sleep stages Google ↗
Apple Watch sleep stage tracking accuracy study REM deep sleep Apple Watch Series 8 Ultra 2 polysomnography Google ↗
- Estimating Sleep Stages from Apple Watch · apple.com
- A performance validation of six commercial wrist-worn wearable sleep-tracking devices for sleep stage scoring compared to polysomnography · pmc.ncbi.nlm.nih.gov
- performance validation of six commercial wrist-worn wearable sleep-tracking devices for sleep stage scoring compared to polysomnography | SLEEP Advances · academic.oup.com
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
Apple Watch sleep stage accuracy deep REM Series 4 compared newer models validation polysomnography study OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
Apple Watch Series 4 sleep stages watchOS 9 supported sleep tracking hardware sensors newest Apple Watch sleep stages OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
Apple Watch sleep stage tracking accuracy study REM deep sleep Apple Watch Series 8 Ultra 2 polysomnography OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 |