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Hi, there! The Samsung 20S Ultra has not been tested with our hardware yet. Square will run on most Android devices with the following features: Android v5 or higher 3.5 mm headset jack (which includes a microphone input) GPS There are several thousand Android devices on the market, and we strive to support them all. In some cases, however, the Android device may meet all the requirements for compatibility but still doesn’t communicate properly with Square hardware or with the app. You can always check your devices for compatibility on squareup.com/compatibility.
Sorry, there was a problem. Please try again later.depends on your phone cord or do you have phone jacks for head phones
Sorry, there was a problem. Please try again later.Yes there is a audio jack model that best buy or other stores carry
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