Can I obtain one of these withdrawn products from a supplier other than Hilo and add it to my smart home?

Yes, you can still purchase the product from a supplier other than Hilo, even if we no longer sell the product.

To connect a new device. Please note that we are not responsible for ensuring this device will function properly with our solution.

Lastly, as explained here, Hilo may stop offering support for the product in the future.