Car navigator and fitness tracker: what they have in common

1. Step 1. Car navigator — has part — System on a chip (SoC). An SoC does the computing.
2. Step 2. System on a chip (SoC) — is part of — Smartwatch. Inside is a system on a chip.
3. Step 3. Smartwatch — evolved from — Fitness tracker. Tracker functions moved into watches.

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