Both products show a 1 cup (41g) and 160 calorie serving size to me?

OpenNutrition: https://www.opennutrition.app/search/honey-bunches-of-oats-h...

Via Manufacturer: https://www.honeybunchesofoats.com/product/honey-bunches-of-...

If you wouldn't mind DM'ing me the barcode you're looking at that would be helpful to understand what the nature of the discrepancy is.