May here from Shopify. Welcome to our Shopify Community!
To clarify, what device are you using? Please make sure that you are on the latest Android version on your device, and that you install the latest version of the POS app as well. To answer your questions,
1. Yes, you can install the Shopify POS app on an Android tablet. As previously mentioned, I recommend that you are on the latest Android version long and the latest POS app version.
2. If you are using Shopify Payments in United States, you can use our chip & swipe reader with an Android device. If you are using Shopify Payments in Canada, our swipe (audio jack) card reader is compatible with Android. Before ordering one, I recommend checking the app and device requirements listed on its respective pages.
3. If you are using a third party payment gateway, or if you choose not to use our hardwares, you can use an external card reader. For more information about card readers, I recommend checking out our document here for more info.
Let me know if this helps! If you have any other questions about POS, feel free to post a reply here or contact our 24/7 support and we'll happily help!
... View more