Siemens iQ700 Built-In Compact Oven with Microwave - Black vs iQ700 67l Capacity Smart Built-In Microwave Oven — Comparison

CM776G1B1B is the Siemens CM776G1B1B iQ700 Built-In Compact Oven with Microwave in black at £1,499, while HM776G1B1B is the Siemens HM776G1B1B iQ700 67L Capacity Smart Built-In Microwave Oven at £1,699. Both are premium iQ700 microwave-capable built-in ovens, but the CM776G1B1B is the compact 45L option, while the HM776G1B1B is a larger, smarter and more cleaning-focused model with 67L capacity.

The CM776G1B1B provides a 45L cavity, microwave function, full-width grill and enamel lining in a compact built-in oven format. The HM776G1B1B expands usable space to 67L and adds smart controls, microwave function, activeClean and humidClean Plus. That means both handle microwave-assisted cooking, but the HM776G1B1B offers 22L more capacity and two named cleaning technologies. The CM776G1B1B’s advantage is its compact footprint and simpler specification, which may suit stacked appliance arrangements better.

The CM776G1B1B suits smaller premium kitchens, secondary oven positions and buyers who want microwave functionality without needing a full-size cavity. It is also £200 cheaper, which matters in an already expensive category. The HM776G1B1B suits serious home cooks who want microwave speed but still need space for larger dishes, roasts or family portions. Smart controls and activeClean make it feel more complete for daily use, while humidClean Plus helps with lighter maintenance between deeper cleans.

Bottom line: "choose CM776G1B1B if you want a compact 45L iQ700 oven-microwave for a lower price / opt for HM776G1B1B if you need 67L capacity, smart controls, activeClean and humidClean Plus."