The honest answer: it depends on what you buy. Neither Coles nor Woolworths is consistently cheaper across every category. The winner changes week to week, product to product — and it changes again every Wednesday when new specials are released.
What Grocerize data shows:
- For branded grocery staples (pasta, canned goods, breakfast cereals), prices are often identical
- For fresh produce and meat, there can be significant weekly variation
- For health & beauty and household items, the price gap is often largest
- When one store runs a half-price special, it's usually 30–50% cheaper than the other for that week
The only way to consistently save is to compare before you buy — which is exactly what Grocerize is built for.