
Prices in the AO combination microwaves category currently start from just £449 for the Midea Xpress Wave MCOTV950E4MO-BK 50 Litre 45cm High, Built In Combination Microwave Oven - Black, Black. This is a great entry-level pick offering a 45cm capacity.
AO sells sizes up to 46cm. The AEG 8000 CombiQuick TK8NK721B 44 Litre 46cm High, Built In Combination Microwave Oven - Black, Black is a great example of this maximum capacity, available for £899.
There are 2 brands of combination microwaves at AO, AEG and Midea.