Magene
H603
- Sensor type
- ECG chest strap
- ANT+
- Yes
- Battery life (claimed)
- 1000 h
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Category
Sensors are where protocol details decide whether a setup works. A phone speaks Bluetooth; a head unit usually prefers ANT+; many sensors broadcast both. We list the concurrent Bluetooth connections because that is what lets a strap talk to a phone and a watch at once.
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Guides for this category

Sensors & connectivity
Indoors, a heart-rate strap has one job: a stable, dropout-free Bluetooth signal to the phone running your trainer. These are the specifications that decide it, and the current models that meet them.