Not sure if you’ll see this but I’l love to understand - why the slightly weird (to me) differentiation between the two models’ sensors? One has heart rate (which might be considered almost fundamental for smart watches today), the other has magnetic/barometric sensors (which are very nice to have when out and moving)… but neither has both? Is the core 2 duo a “geeky” watch and the other one a “premium” product? I assume the latter also doesn’t support JTAG fiddling around, is that a philosophical choice or more of an engineering time/resource constraint? Thanks in any case, these devices are definitely quite tempting!