In the tablet world, you've got four main choices for operating systems: an iPad, an Android tablet, an Amazon Fire tablet or a Windows tablet. Apple iPads run the company's own iPadOS, which is widely regarded as one of the best out there. It's easy to use and app developers usually make it their first choice, so you're pretty much guaranteed to find what you're after whether it's a banking app or the latest games. If you have an iPhone, then it'll also be very familiar. This is valuable when you buy accessories that require apps – mainly smart home or fitness gadgets – as you may not be able to control these from a Windows (or Fire) tablet. In most cases, apps are made available on Android as well as iPads, but not always. Android tablets can be cheaper than iPads, but there are some Samsung models which cost the same or are more expensive. Windows tablets come in both cheap and expensive guises, with the advantage of being able to support the same programs you're likely already used to running on your laptop or PC. There just aren't as many finger-friendly tablet-optimised apps as you'd find on your phone or an iPad. And that's why most Windows tablets come with a keyboard (or at least offer one as an optional accessory) they're really a hybrid of a laptop and tablet. But as you'll find out in most of our Windows tablet reviews, this is rarely a case of getting the best of both worlds. One exception is the Surface Pro line, from Microsoft. The fourth option is Amazon's Fire tablets. These are based on open-source Android but are locked into Amazon's own ecosystem, running on what's called Fire OS. As such, you won't find any Google services or apps on them natively, so bear this in mind. They are very affordable, though. Bear in mind that some tablet makers use their own custom OS, such as the ReMarkable 2.