And they aren't just useful for changing your music, as they can help you ask questions, check weather reports, or connect with other smart devices like smart lights so you can control it all with just your voice. The smart speakers listed here include models from Amazon, Google and Apple, as well as top picks from market-leading audio brands with integrated voice assistants. We've tried and tested all of the smart speakers on this list, listening to music, asking questions and using them to control our other smart gadgets.