Both the iPad and the Galaxy Tab Active2 are available in WiFi-only models, as well as in models that support WiFi and LTE connectivity. For the Tab Active2, the two available carriers are Verizon and AT&T. The iPad has a wider variety of carriers available, including Verizon, AT&T, T-Mobile, Sprint and smaller carriers.
In terms of port connectivity, the iPad features a Lightning connector for charging and data transfer, along with a Nano-SIM tray that supports Apple SIM. The Tab Active2 features a USB-C port for charging and data transfer, as well as a pogo pins connector for easy docking.