Device 鈥� Can I Buy A Portable Wifi

: These require a SIM card or a data plan. They are best for places where you don鈥檛 have any internet access at all.

: These don't have built-in cellular. Instead, they take an existing connection (like a hotel鈥檚 Ethernet or weak Wi-Fi) and make it more secure and shareable for all your devices. 馃洜锔� Top-Rated Portable Wi-Fi Devices

鈥淚 often use my cell phone as a hotspot for spontaneous, everyday purposes... the [portable Wi-Fi hotspot] is infinitely preferable for traveling or extended use.鈥� Travel + Leisure