If you are doing something illegal then you should definitely bring a new device. If you are not doing something illegal then you should just bring your normal device and keep it locked/off when entering.
They can force biometrics but not pin, but they will only do that if you're already in super deep trouble for breaking the law. Just be normal and you'll have no issues.
The blue bars at the bottom are the volume of trades and the lines at the top are the average price per share. You can see that right before the price shot up there was a sharp increase in volume indicating that a group of people knew and bought large quantities before the rest of the world knew.