The hardware is the hardest part (hard to hear as a SWE, i know). But there are contract shops that can design your hardware for you and have it made. Prepare t

The hardware is the hardest part (hard to hear as a SWE, i know). But there are contract shops that can design your hardware for you and have it made. Prepare to pay 5-6 figures (regardless of whether you want 1 or 10,000 made) You can attempt to do it all yourself, but you'll never pass FCC or any other cert (so you cannot sell), you're unlikely to make anything small enough for daily wear (past showing off), and forget waterproofing (these are all examples, some makers really are good enough to do all of this, but then again those are not asking for "how do i do it?" on HN)