From the Stadia Support Page Stadia can be played with a variety of gamepads on a computer, on a TV with a Chromecast Ultra and on compatible mobile devices, including: Pixel 2, 2XL, 3, 3XL, 3a, 3a...
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From the Stadia Support Page Stadia can be played with a variety of gamepads on a computer, on a TV with a Chromecast Ultra and on compatible mobile devices, including: Pixel 2, 2XL, 3, 3XL, 3a, 3a XL, 4, 4XL, 4a, 4a (5G), 5 Samsung S8, S8+, S8 Active, Note 8 Samsung S9, S9+, Note 9 Samsung S10, S10+, Note 10, Note 10+ Samsung S20, S20+, S20 Ultra OnePlus 5, 6, 7, 7 Pro, 7 Pro 5G, 8, 8 Pro, Nord OnePlus 5T, 6T, 7T, 7T Pro, 7T Pro 5G Asus ROG Phone, ROG Phone II, ROG Phone III Razer Phone, Razer Phone II LG V50 ThinQ, V50S ThinQ, V60 ThinQ, G7 ThinQ, G8 ThinQ, Wing More mobile devices will be made compatible with Stadia over time, even if they don't appear in the above list. To try playing Stadia on an Android device that is not currently supported, sign in to the Stadia app Stadia icon on the device that you want to try, open your Stadia settings, tap Experiments, then turn on Play on this device. This setting will only affect the device on which you set it, and you can turn it off at any time. Note that your play experience may vary depending on your mobile device and network speed. So you can turn on the experiment function and see if it already works