Quick answer

Choose the 5.8-cup MealBox if you want one larger divided container for hearty lunches or leftovers; choose the 4-cup MealBox if you prefer a three-compartment layout for neatly portioned everyday meals. Both have secure lids, but the 5.8-cup comes with a blue lid and the 4-cup with a green lid.

Capacity and compartment layout

The main difference is how much food each container holds and how it is divided. The 5.8-cup version offers ample space for hearty lunches or leftovers, while the 4-cup version uses a three-compartment design to keep different foods separate and neatly portioned. If you often pack a large salad plus a main, the extra capacity of the 5.8-cup may be more useful. If you like distinct sections for protein, sides, and snacks, the 4-cup’s three compartments can help with portion control and prevent mixing.

Lid color and sealing

Both containers come with a secure lid: the 5.8-cup has a blue lid, and the 4-cup has a green lid. The 4-cup lid is described as airtight and locking, which helps maintain freshness. The 5.8-cup lid is described as providing a secure seal. Color is mainly a practical way to tell containers apart, but it does not change capacity or compartment count. If you already own other Pyrex lids, note that lid compatibility is specific to each container size, so these lids are not interchangeable with other Pyrex items.

Key trade-offs

  • Capacity vs. compartment count: The 5.8-cup gives you more total space but fewer defined sections; the 4-cup gives you three compartments but less overall capacity. Decide whether you need more volume or more separation for your typical meal.
  • Lid color for identification: Blue lid (5.8-cup) and green lid (4-cup) help you quickly tell the two sizes apart in a cupboard or fridge. Color-coding can simplify meal prep routines if you own multiple containers.
  • Portability and meal type: Both are designed for on-the-go lunches, but the 5.8-cup is better for larger appetites or leftovers, while the 4-cup is better for balanced, portioned meals. Match the container to the meal you pack most often.

Product facts

Which size fits your needs?

Best for

  • People who pack hearty lunches or leftovers and want extra capacity
  • Those who prefer a simple divided layout without multiple compartments

Not for

  • Anyone who needs three distinct compartments for portion control
  • Users who want a smaller, lighter container for everyday light meals