MainBuyer Evidence Layer

Blue Pure 511 New Zealand price history

Timestamped retailer-price observations recorded by MainBuyer in New Zealand. These figures are first-party MainBuyer records, not a reconstructed or estimated daily price chart.

Tracking started

No publishable price history yet

MainBuyer only publishes observations that have a real checked timestamp and recorded retailer price in New Zealand. We do not create artificial historical points to fill gaps.

Methodology

How this price dataset is produced

Each row is created when a MainBuyer offer record has both a price and a real price checked timestamp. Repeated checks can create repeated observations even when a price has not changed, because that records how long the observed price remained available.

Historical low, high and median calculations use recorded observations that were marked in stock. Missing dates are left missing: MainBuyer does not interpolate, backfill or invent prices for periods when no check took place.

For the buying verdict, limitations and current retailer comparison, see the Blue Pure 511 price comparison and review. For the wider dataset, see the MainBuyer New Zealand Price Index. See also how MainBuyer reviews products.