Set up and use mobile hotspots

How to set up a mobile hotspot on iOS or Android and how to use it wisely?

Smartphone radios to two other devices

V1.0 02-2022 | Lars Thoms | DL.MIN | Universität Hamburg

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Table of Contents & Navigation

Below you will find a chapter overview. You can jump directly to the corresponding chapter by clicking on the individual tiles or go to the next section by clicking on the ᐅ arrow at the top right. For an explanation of the other navigation and menu bar elements, click on the ❔ help icon at the top right.

Creation of a mobile hotspot

A smartphone shares the Internet connection with a tablet, notebook and smartphone

A mobile hotspot, also known as a personal hotspot or tethering, is a good way to pass on the (mobile) Internet connection from your mobile device to other devices. This is especially useful if, for example, a tablet or notebook is carried along that does not have an Internet connection at your location.

From a technical point of view, there are several ways to share Internet access:

  1. you can connect your smartphone with a suitable cable (e.g. USB-C or Apple Lightning) to your tablet or notebook. This allows you to provide only one device with Internet access, but this connection is faster depending on the amount of radio traffic in your immediate vicinity.

  2. you create a mobile Wi-Fi hotspot. This is quickly set up and several devices can connect at the same time. Typically, the maximum number should be between three and five devices so that the network remains stable.

On Android, you still have the option of sharing the Internet connection via Bluetooth. Unfortunately, the data rate via Bluetooth is not too high for technical reasons and only one device can be supplied at a time.


Apple iOS

Use of a mobile hotspot

If you want to connect another device to a mobile hotspot, there is one small thing to keep in mind if you want to conserve the data volume. Most operating systems come with a data-saving mode.

This mode disables, for example, the automatic update of apps or the operating system itself. Also, depending on the system and app, scheduled downloads of large files are not performed.

Apple macOS unfortunately does not support this functionality yet.


Apple iOS

Microsoft Windows

Linux / GNOME Desktop