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.
You’re already on hundreds of cameras by walking into any airport in the world. Do they need your consent to run facial recognition software on the security footage?