Our winner had the largest capacity in the lineup, with two 4-ounce containers that could be used together or separately—the latter option allowing us to pack different foods or prep two meals at once. Both containers were more than 2 inches deep, so it was easy to stir in and eat from them without spilling. The airtight lids sometimes required a bit of strength to remove, but we didn't mind because it was the only container that never leaked. This plastic model retained a barely noticeable sardine smell after one wash, but that faded after a second wash. This model is available in a variety of colors.