How to upgrade Pixel 3's internal storage to more than 64 GB
I have a Pixel 3 that has been fine, but its 64 GB internal storage frequently gets full, and I don't like needing to connect the device to my computer with a physical cable (it https://android.stackexchange.com/q/234329/22600 that it's 2022 and I'm still using cables for file transfer) and move files to my PC just to free up space on my phone to keep is usable.
I see that there were versions of the phone that featured https://amzn.to/33puZAn of storage.
How could I buy a >=128 GB internal card (or whatever it's called) and install it in my device, replacing the 64 GB one?
The Pixel 3 does not have a slot for inserting an Micro-SD card. Therefore you can not upgrade your device.
The 64GB memory chip is built-in soldered to the main board of the phone. Replacing it is next to impossible.
The only workaround would be using an USB flash memory stick with USB-C connectors (or an USB-A version + adapter cable) and manually copy data from/to the flash memory stick.
But I would not recommend doing so as it increases the chance to break your USB port making it in the end impossible to charge without wireless charger.