The third largest manufacturer of POS terminals worldwide is Pax Technology. The company has shipped 34 million devices since 2002. Pax’s miniPOS A50 device weighs only 163 grams and is 16 mm wide. The Android 8.1-based device sends receipts to a printer via email or message or can be paired with a printer via Bluetooth. The A50 includes a high-definition 4.5-inch IPS touchscreen. A front-facing fixed focus 0.3-megapixel camera is optional. A 2-megapixel fixed focus rear camera is standard. The rear camera can be upgraded to 5-megapixel autofocus. Both have LED flashlights. Communic...