Sensor Size and Image Quality

The A7C II features a full-frame 33MP sensor that captures significantly more light and detail than the A6700's APS-C 26MP sensor. This translates to better low-light performance, shallower depth of field control, and superior dynamic range. The larger sensor also provides better bokeh and more professional-grade image quality for portraits and landscapes.

Size, Portability and Design

Both cameras prioritize compactness, but the A6700 maintains a smaller footprint due to its APS-C sensor requirements. The A7C II, despite being full-frame, remains remarkably compact for its class. Both offer excellent build quality and weather sealing, making them ideal for travel photography and everyday use.

Video Capabilities and Performance

Both cameras excel in 4K video recording with advanced autofocus systems. The A6700 offers slightly better video-focused features like S&Q mode and enhanced heat management. However, the A7C II's full-frame sensor provides superior video quality in challenging lighting conditions and more cinematic depth of field options.