Trunk comparison: Kia Stonic vs Skoda Kamiq

Key Differences
The Škoda Kamiq offers a significantly longer cargo space with the rear seats folded down: +6.3 in (+12%) compared to the Kia Stonic. The Kia Stonic, on the other hand, has a greater trunk depth (loading edge to trunk floor): +0.8 in (+13%) compared to the Kamiq. Other smaller differences: with the rear seat row upright, the Kamiq is 2 in (7%) longer, the height of the trunk opening on the Kamiq is +2 in (6%) larger, the trunk opening is +1.2 in (3%) wider on the Kamiq, the loading edge of the Stonic sits +2.8 in (10%) higher above the road, and the narrowest width inside the trunk is +2.4 in (6%) larger on the Stonic.
Impact on Usability
The longer loading surface of the Kamiq with folded seats makes it clearly better for long items (e.g., slats, long furniture parts, skis with extension aid): more length means less cumbersome storage or overhang beyond the tailgate.
Additionally, the slightly higher opening height and marginally larger opening width make loading tall or bulky items easier.
The deeper trunk floor of the Stonic (greater depth between loading edge and floor) creates more usable depth below the loading edge, allowing volume to be used more efficiently and cargo to sit somewhat "deeper" in the vehicle.
This helps keep tall cargo within the cargo space and reduces overhang above the loading edge. The larger narrowest interior width in the Stonic facilitates storing wider items that must pass between the wheel arches.
Practically, this means: those who frequently transport long items or regularly fold down the rear seat benefit more from the Kamiq.
Those who value a deeper loading bed and somewhat more usable width in the trunk (e.g., for crates or bulky but not overly long cargo) find advantages in the Stonic — however, note the higher loading edge of the Stonic, which can make lifting heavy items more difficult.