Huawei was pretty spot on with This medical Device for testing sleep he used, But As far deep sleep All were basically inaccurate. overall Expensive FitBit Monitoring watches>Huawei gt 2> Samsung However, its probably using the phone's GPS to determine the "true" altitude. This mostly defeats the point of having an on-board barometer as the watch could instead just use its GPS to determine the altitude. To be fair, perhaps the Huawei app is doing something fancier than just using the phone's GPS to get a true altitude value. Design . 46.4 x 46.4 x 11mm ; 38.5 grams without the strap ; 5ATM/50m waterproof ; Rotating crown/button ; 22mm quick release strap ; There's no doubt that the GT Runner's design looks and feels a Huawei Watch Ultimate currently starts at £699 (around $870 / AU$1,300) for the Expedition Black version of the watch, which has the standard zirconium liquid metal watch face and casing but a I've also noticed that our files are slightly different, probably because mine is generated using a Huawei Band 2 Pro rather than the Watch GT. Again, this is a problem for later on - perhaps altitude measurements from your watch won't transfer across initially (mine has no altitude measurement), but with enough data files from you I'll be able bpdR.