Polaroid's smart TV works with Amazon Alexa so you can control it with your voice using an Amazon Echo or Echo Dot device (which currently has £10 off right now).
It's a great deal for a 4K TV, especially if you've recently subscribed to new streaming services like Disney Plus under lockdown and want a large, high definition screen but at an affordable price.
Other smart TVs with comparable features will cost you more than £300. For instance, the 55in JVC Smart 4K UHD Fire TV, which also works with Alexa, costs £349 even with a £100 deduction from Currys. Similarly, the 50in Hisense Smart 4K UHD from Argos costs £349 but doesn't include support from a voice assistant.
Polaroid's TV includes access to Netflix, Freeview Play, YouTube and Amazon Prime directly (though you'll need a subscription to access the content).