Zwave devices use a different frequency which will not be compatible with the hub from the other region.
Most smartthings branded devices are ZIgbee, and there the answer is more complicated. See the following active discussion for details:
Zwave devices use a different frequency which will not be compatible with the hub from the other region.
Most smartthings branded devices are ZIgbee, and there the answer is more complicated. See the following active discussion for details: