Apparently something went wrong when reading in the product data at Digitec.
There is an Android version with USB-C and an iOS version with a Lightning port.
I have both models - apart from the connection and the colours on the buttons, they are practically identical.
Here's the iOS version (v1): Razer Kishi (iOS)
and here the Android version (v2): Razer Kishi V2 for Android (Android)
Hi, i use the Kishi with my s20 fe 5g. your s10 5g is a bit bigger. compare the two devices. i think your device is pretty much the maximum that fits. otherwise ROG also has a controller for the ROG Phone that is compatible and a bit bigger. i don't know your device exactly, but the usb c port has to be in the middle of the device. otherwise it won't work.
greetings
Stadia works with the controller.
I'm not sure about the phone, but as long as the buttons are on the side of the phone and the USB-C port is down in the middle, it should work.
If you buy the kishi with the iphone plug, it will work for sure. I have the one for Android. Unfortunately, it is not compatible with CoD mobile. But otherwise, the workmanship, handling and extremely short delay are top-notch, I must say.
The one for 109.- (product number RZ06-02900200-R3M1) is Xbox licensed (Xbox button and ABXY have the same colours as on the Xbox controller). This one (product number RZ06-02900100-R3M1; at Digitec for 91.40) has the ABXY buttons in a different colour and no Xbox button but Home button. Otherwise they are - as far as I know - identical.
My slightly larger Note 20 Ultra fits in nicely, so the S21 Ultra should fit in, as long as the USB-C port is also down the middle it should be compatible too.