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Lumia 2 Smart Earrings
Lumia 2 Smart Earrings: Tech Specs
| Battery life | 5–8 days |
|---|---|
| Sensor location | Earring back (behind the ear) |
| Form factor | Modular SwitchBack system; interchangeable fronts |
| Patent portfolio | 12 granted or pending patents |
| Development time | 6 years of development |
| Health metrics tracked | Blood flow, sleep, temperature, cycle, HR, strain, daily readiness (HRV/RHR) |
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