Lukasz Siemaszko

- In my opinion best device for sleep tracking
- Quality of insights on performance / wellbeing / recovery
- Owned by Google (could be also a con): good quality of algorithms that process the data
- Auto recognition of activities (walking, running, cycling, etc.)
- I like their app (UX/UI quite simple): I like it much more than Garmin

- Bad for fitness / sports activities
- Battery not strong enough (compared to Garmin)
- Touch display not working very well if you have wet hands (or under water)
- GPS not tracking very well
- Quality of band / stripe (usually they break after ca. 1 year)

Sleep tracking