For sure, barometers are useful, I'm an avid backpacker and make use of the one in my watch for sudden weather changes and altitude, but if I'm buying a $150+ s

For sure, barometers are useful, I'm an avid backpacker and make use of the one in my watch for sudden weather changes and altitude, but if I'm buying a $150+ smartwatch to take backpacking, I just wouldn't really consider one without GPS.