Sometimes. Walmart and Superstore both run weekly flyers and frequent promotions, so the cheaper store flips depending on the item, the week, and the specific location. There’s no overall winner you can rely on every time.
Why “it depends” is the real answer
Walmart Canada and Real Canadian Superstore are different formats with different private labels (Great Value versus President’s Choice) and different loyalty structures (Walmart has no dedicated grocery points program; Superstore runs PC Optimum). Neither structural difference translates into a fixed price advantage. A national-brand item on a Walmart rollback can beat Superstore one week, while a PC Optimum points offer can flip the comparison the next.
A faster way to check than two flyers
Manually comparing every item across both retailers’ flyers takes time most people don’t have. If you already place PC Express orders at Superstore, checking your actual cart against current Walmart prices is more useful than a general claim about which banner is cheaper.
Related reading
The full comparison is in Superstore vs Walmart Prices. If a Walmart item is cheaper, Does Superstore Price Match Walmart? covers what qualifies. See the Canada-wide guide for the broader picture, or the grocery savings calculator to estimate the impact of switching specific items.