How the durability score is calculated

Protection against water, dust and scratches: water resistance (60%, required), cover glass generation (20%, when published), metal frame (20%).

Does not include drop tests.

Inputs, weights and scales for the durability score (formula version 2.6). Values between two points are scored on the straight line between them; values beyond the ends get the end score.
InputWeightRequiredScale: value → points
Water resistance (IP69 100, IP68 95, IP67 80, IP65 50, IP54 35, none 0)60%yesfixed 0–100 scale (see label)
Cover glass generation (named by the maker)20%no, used when publishedfixed 0–100 scale (see label)
Metal frame20%noyes = 100, no = 0

Worked example

The Poco X8 Power is #3 in the current durability list. Its durability score of 100 comes from these inputs:

Poco X8 Power: durability score step by step. Points are on the 0 to 100 scales above.
InputThis phonePointsWeightContribution
Water resistance (IP69 100, IP68 95, IP67 80, IP65 50, IP54 35, none 0)IP69 rated10060%75.0
Cover glass generation (named by the maker)worked out from other specifications10020%25.0
Metal framenot confirmed—20%left out

The contributions add up to the score. An input that is not confirmed is left out and the remaining weights are scaled up to 100%, except where the category counts an unknown input at the middle of its scale (shown as "counts as 50").

See the ranking.

Full methodology