Large technology and electronics shops will probably sell most of the products listed here. It's important to shop around as prices can vary. If you’re considering buying a new device online, follow advice to shop online safely.
If you're on a budget, there may be cheaper models available that suit your needs. You could also look at second-hand, refurbished or older models, which are usually cheaper. Bear in mind that technology companies may eventually stop providing software and updates for outdated models – see Staying safe online for more on software updates.
Some local councils, libraries and charities run schemes to help people get online. They may provide you with some support to get started, and in some cases, with a simple device, such as a tablet or smart speaker.