Review on 📱 Enhanced Performance: Digital Watches with Altimeter, Barometer, and Compass Functionality by Roger Diaz

This device works very well. I calibrated it and compared it to the altimeter and pressure gauge on my iPhone and it turned out to be very accurate. The build quality is very high. I didn't have enough time to see how the glass held up. One downside I noticed was that the backlight is a bit dim. The only reason I didn't give it 5 stars was that the instruction manual was a bit confusing. It was obvious that English was not their first language. In any case, I really like the device and for the price I can highly recommend it.