Focus: Sleep Tracking & Health Insights
| Fitbit Sense 2 | Withings Sleep Analyzer | |
|---|---|---|
| Tracks Sleep Stages | ✅ Yes (Light, Deep, REM) | ✅ Yes (Light, Deep, REM) |
| Snore & Breathing Detection | ✅ Yes (mic + sensors) | ✅ Yes (under-mattress sensor) |
| Worn on Wrist? | ✅ Yes | ❌ No — goes under your mattress |
| Sleep Score & Tips | ✅ Yes (via Fitbit app) | ✅ Yes (via Withings app) |
| Heart & Breathing Rate | ✅ Yes (wrist-based) | ✅ Yes (under-mattress sensor) |
Both of these are excellent for tracking how well you sleep — but they work in very different ways.
- The Fitbit Sense 2 tracks your sleep while you wear it on your wrist — and gives you extra health features like stress and heart rate.
- The Withings Sleep Analyzer hides under your mattress and tracks everything without you wearing anything at all.
If you don’t want to wear a watch to bed, Withings is your no-effort option. If you like detailed daily insights and other wellness features, Fitbit wins.
😴 Want to understand what REM, sleep score, or snore detection really mean?
Take a peek at our Smartwatch Glossary — we explain it all, simply.