I’ve been a prepaid customer for a few years on my LG G5, and I just got a Google Pixel 4a for Christmas. Will I be able to just take out the SIM card on my G5 and put it in the Pixel? Is it the same SIM card type/size? Will I have to call Koodo? Will I keep my same number?
Thanks
Yes, you can definitely do all that, no worries!
I'm not entirely sure if the SIM cards are the same size, but if you need another size, you can just purchase a prepaid SIM card and activate it in self serve. Go for it 
There are indeed both nano SIM cards.
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