Amazon's “X% off” is calculated against the price Amazon was listing the product at the moment before the deal. Ours is calculated against what the product has actually sold for over the last year. The gap between those two numbers is the whole story of this series.
#4 / 2 October 2026We checked 270 Amazon UK Lightning Deals this week. 56 were real.
Every deal checked against its own price history for a week: Amazon's percentages against the real drops, the genuine lows, and the repeat offenders.
#3 / 18 September 2026We checked 371 Amazon UK Lightning Deals this week. 54 were real.
Every deal checked against its own price history for a week: Amazon's percentages against the real drops, the genuine lows, and the repeat offenders.
#2 / 11 September 2026We checked 125 Amazon UK Lightning Deals this week. 13 were real.
Every deal checked against its own price history for a week: Amazon's percentages against the real drops, the genuine lows, and the repeat offenders.
#1 / 4 September 2026We checked 40 Amazon UK Lightning Deals. Five were real.
The first edition: Amazon's percentages against the real drops, four receipts, and the two that actually made the cut.
The live verdicts update through the day on the Lightning Deals page, and the method is explained in Are Amazon Lightning Deals actually good deals?