Garmin explains how nano-molded titanium cases fit in Fenix 9 Pro and Marq Gen 3
Garmin officials explain the engineering process behind the new nano-molded titanium cases on the Fenix 9 Pro and Marq Gen 3 watches.

Titanium offers weight advantages over steel
The company states that titanium is lighter and stronger than aluminium while being significantly lighter than stainless steel. This material choice helps reduce the momentum a watch picks up during exercise like running. Garmin notes that excessive weight causes watches to move around on the wrist, which can hurt heart rate reliability.
Manufacturing hurdles require plastic components
Even the base model of the Fenix 9 titanium watch retains part-plastic bodies due to technical challenges. Using more titanium creates specific hurdles that engineers must overcome to maintain signal transmission. The goal was to keep the case small while allowing signals to pass through effectively.
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