In the interests of completeness, this Tapo doorbell isn't actually the cheapest option on the market. If you're feeling brave, you could take a punt on this "Sunnyjane" 1080p smart doorbell camera ...
When it comes to securing your house, a video doorbell is a superb place to start ... While you can use one quite happily without a monthly fee, you'll need to stump up at least £5 every month ...