Speed of the internet is faster in tethering. Whereas speed is slow when using the internet with the hotspot. It needed both a mobile phone and USB cables. While it requires only a mobile phone. In mobile devices, the hotspot is not necessary for tethering. The hotspot option is a must in mobile phones. It does not waste the battery of the mobile.
The bottom line. Portable WiFi hotspot devices from AT&T allow a business to connect teams and mobile workforce to the Internet in a safe, reliable network. They are great for conferences, customer sites, worksites or an impromptu meeting at the local coffee shop with a prospective client. AT&T portable WiFi hotspot devices provide the speed
1. USB has a strict host/peripheral topology: this means that two hosts or two peripherals connected together will be unable to communicate. (Contrast this with IEEE 1394/FireWire, where all nodes on the network are equal and can communicate between each other at any time.) Both the LTE modem and USB-to-Ethernet bridges are most likely
Bluetooth uses low-energy protocol, which means it consumes less data compared to Wi-Fi hotspot. Bluetooth tethering consumes between 250 and 500 kilobits per second (kbps), which is about 30 to 60 kilobytes per second (KB/s). So an hour of Bluetooth tethering will consume about 110 to 220 megabytes (MB) of data.
Any data you use counts against your monthly limit, except for unlimited plans, which get 2.5 GB of hotspot use per month. For tablet users, T-Mobile provides 200 MB of free tablet data per month, but charges $20 per month for 500 MB and $30 per month for 2.5 GB. Mobile Hotspot vs. Tablet Data Plan
Unlimited and More Unlimited plans for connected devices - Each Data Boost gives an extra 5 GB of 4G LTE / 5G data for Mobile Hotspot use. Essential, Plus, Pro and Premium plans for mobile hotspot devices - Each Data Boost gives an extra 5 GB of 4G LTE / 5G or 5G Ultra Wideband data for Mobile Hotspot use. Each Data Boost is $35 (tax may apply).
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does tethering count as hotspot data