Read Back Market price history without confusing a drop with a good buy

Identify what the line follows

Price Radar records the entry price for a model on Back Market US. The cheapest available storage, colour, grade or seller can change between readings. The series therefore does not necessarily describe an unchanged configuration. Open the offer and select your storage and options before calling a movement a saving on your purchase.

Read the coverage before the low

The recorded low is the smallest amount captured in the available series, with its date. Check when tracking began and look at neighbouring observations. One low reading and several days near that level are different evidence. Neither tells you exactly how long stock was available or whether that amount will return.

Separate an average, a median and a range position

An average of readings can be influenced by extreme values and by the number of collections each day. Where shown, the daily median uses each observed day's last price within the period specified in our methodology. A price badge instead locates today's amount inside a range. It is not a probability of a future drop or a rating of device quality.

Describe a change without inventing its cause

A change compares observations. It cannot by itself establish that a launch, a promotion or depleted stock caused the movement. Collection gaps also leave unknown intervals. For a 30-day comparison, read the actual dates rather than assuming continuous monitoring of every offer.

Turn the chart into a checkable decision

The dated example below places one model inside its own series. Complete it with the exact offer you would order; a low entry price may still be unsuitable for your required battery or storage.

• Record the model, date range and entry price.
• Check storage, grade, battery and the final seller price.
• Put a money amount on the saving you want and set a decision date if a replacement is urgent.