Stuff just shows up on my phone and the above product costing about $14 from Digi-Key did just that.
Disclaimer as this is just linking what is a commercial product that ultimately some true ham homebrewer will take and build a transceiver inside a fat watch case. It may take six months or so before something will arise out of the digital pages of hackaday, but it will come.
How about FT-8 on your watch in the 2300 MHz band. You could even fit a 14 element log periodic antenna to this jewel and its footprint could be 3D Printed on the top of a ball cap, maybe even sold as merch to the MAGA cult ball cap users.
I want to profile the ham homebrewer who will take the leap from this product to fabricating this visioned ham rig.
This ham homebrewer would think out of the box and see the possibilities and potential this RF transceiver has. Obviously, the aim would be to have satellite interface so the range would be extended across the globe and perhaps something as simple as an open channel on a Star Link Dish could be the Gateway.
He or she would be comfortable using a solar panel embedded in the wrist band to always have a source of power. They would also see Blue Tooth as a link to the watch for voice communications.
Our ham homebrewer of the future, who cut his teeth on the many popular topologies had to move beyond glue down pads and TIA amps to implement this project. This ham homebrewer had thoughts way beyond cheap boards made in China.
I also suspect the individual who does this feat will live in someplace other that the US. Europe, China or India would seem like the potential source locations. Since it is not a kit at this point, that is another piece of evidence for offshore gestation. Imagine that -- a worldwide ranging ham transceiver sitting on your wrist. Not a pipe dream, but likely to happen sooner rather than later.
If all you do is read the menus on the IC7300 then likely you will miss some of the current technology that will soon appear as ham gear. This is perhaps the greatest time ever for homebrewing with available cheap technology like this RF Transceiver.
Them that know can make it go!
73's
Pete N6QW