Likely when they go on pre-order so you've got a little while to wait. For an idea of costs, the Galaxy Note 8 is close in price to the iPhone X when bought outright so I'd say the plans for that would be compareable at this stage- Note 8 Preorder
The link on your home page is navigating me to incorrect page, after clicking pre-register it takes me to Iphone 8 ordering page. Seems link configuration needs to be looked at for pre-register button
Hello @NexusQ1. Pricing and plans will be released on the 27/10 when pre-orders become available.