Huawei Watch GT3 Elite Not Working Properly

I just bought the Huawei Watch GT3 Elite, and let me tell you, the hype was way over the top. They talked about how it had a lot of sensors and amazing technology, but in reality, it's not very impressive. When I sit at my computer, my arm moves on its own, which makes the watch count steps I haven't taken. Even when I haven't burned any calories, it says I have. It's a device that always gives wrong information and makes wrong calculations. Even when I do bicep curls with dumbbells at the gym, it counts the wrong number of steps. When I walk with my arm swinging, it makes me take more steps. It just can't deal with moving arms. Is this what they mean by sensor technology on the cutting edge? Now, I don't think it accurately measures my heart rate, my sleep, or anything else. When I wake up in the morning, I check how well I slept and start to doubt its accuracy. What did I pay almost 5,000 liras for? Just to get alerts from WhatsApp and Instagram? Even wristbands that cost between 1,000 and 1,500 TL do a better job. In just three weeks, this gadget has already let me down. I'm sorry I bought it!