It's just a watch. You don't need a full UNIX computer to tell time, or to record heart rates or pinging AWS for those matters.
Interesting comment, because according to https://en.wikipedia.org/wiki/PDP-7 the PDP7 (the first computer "UNIX" ran on) had ~9.2KB of memory (supporting up to 144KB).
Most contemporary SoCs will have more memory (and compute power) than that.
Interesting comment, because according to https://en.wikipedia.org/wiki/PDP-7 the PDP7 (the first computer "UNIX" ran on) had ~9.2KB of memory (supporting up to 144KB).
Most contemporary SoCs will have more memory (and compute power) than that.