How accurate is the Amazfit T-Rex 2 GPS?

Grab these on Amazon HERE: https://amzn.to/3Oq7nNX

[Ready for Action] The Amazfit T Rex 2 premium GPS smart watch is equipped with 1.39” HD AMOLED always-on display for clear & outstanding visibility while outdoors and it passed 15 Military-standard Tests (MIL-STD-810G) to withstand extreme temperatures and environments, and prove durability even when subjected to intense physical condition.
[Navigate for Your Exploration] The Amazfit T Rex 2 sports watch supports 5 satellite positioning systems(GPS/GLONASS/Galileo/BeiDou/QZSS), which can effectively reduce environmental interference and achieve more precise positioning. Hikers, climbers, and explorers of any fashion can also conquer new heights and discover new paths with the T-Rex 2's built-in compass and barometric altimeter. It also provides Route Import and Real-time Navigation.
[Strength Exercise More Effective] The Amazfit Tex 2 smart watch can automatically recognize the movements and count the reps of dozens of types of strength training exercises and help to create your own training templates. After finishing the workout, the Zepp App will visually show you the muscle group you exercised and assesses specialized data like maximum oxygen uptake (VO2Max), full recovery time, training load and training effect to help you get strength exercise more effective.
[150+ Sports Modes&10 ATM Waterproof] The Amazfit T-Rex 2 sports watch‘s huge selection of over 150 sports modes includes the toughness-testing Triathlon mode, the professional lap-data recording Track Run mode with smart trajectory correction, and the more leisurely Golf Swing mode. Whatever activity gets you going, you'll likely find a mode for it on the T-Rex 2. And it is 10 ATM waterproof and can withstand splashes, rain or snow, swimming, snorkeling, and other non-high-speed water sports.
[One Tap for Four Health Metrics] With the Amazfit T Rex 2 smart fitness watch you can test your heart rate, blood-oxygen saturation, stress level and breathing rate in a single tap of the watch, for a result in as little as 45 seconds. To easily understand your condition without cycling through individual apps, quickly get the data you need in one tap and then get on with your day.
[24-day Ultra Long Battery Life]: With a battery powerful enough to endure adventures up to 24 days at a time with typical usage, the Amazfit T-Rex 2 smart watch is brimming with the energy you need to go on the hunt for adventure.
[Powerful Zepp OS & 3rd Party App Support] The intuitive Zepp OS makes it easy to find what you’re looking for on your Amazfit T-Rex 2 smart watch. Seamless interactions, and a specifically tailored smartwatch UI, enhance the user-experience of this light and low power-consuming OS. You can experience a mini app framework with a rich ecosystem including 10+ mini apps and even the Home Connect and GoPro third-party apps.