Stadia isn't a device; it's a service. There is no "device itself", unless you count the bundle they sold that included a Chromecast, controller, and 3 months of the service + 3 months for a friend.
You can play Stadia on an Android phone, Chromecast, or a Chrome browser on a laptop or desktop.
The service is free; you pay for the game only.
The $10 per month is only for the Plus service or whatever it's called that gives you 4K resolution and 5.1 surround, and presumably some free games/deals based on the marketing.
The communication thus far has been shitty, that said.
You can play Stadia on an Android phone, Chromecast, or a Chrome browser on a laptop or desktop.
The service is free; you pay for the game only.
The $10 per month is only for the Plus service or whatever it's called that gives you 4K resolution and 5.1 surround, and presumably some free games/deals based on the marketing.
The communication thus far has been shitty, that said.