Oh how far we've come that now anyone can DIY a wearable for almost no money that's designed for outdoor use. Can anyone suggest their favorite dongles and sof

Oh how far we've come that now anyone can DIY a wearable for almost no money that's designed for outdoor use. Can anyone suggest their favorite dongles and software for this use case? LoRa, GPS, etc.? The performance of power sipping single board computers is approaching laptop replacement with days worth of battery life.