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We convene a panel of 22 men to trial shavers, as all tested models are marketed as men’s shavers intended for regular facial use.
Overall score includes:
Shaving performance (60%)
Ease of use (30%, or 40% for the two corded models)
Battery life (10%)
Performance and ease of use results are equally weighted between each of the panellists’ opinion.
Shaving performance is based on each trialist’s view of how effective a model is at giving a close shave on both one- and three-day beard growth. Points are deducted where skin appears dry, shadowed, grazed or red after shaving. Models also receive a penalty if they pull hair instead of cutting, cause grazes or nicks or result in any skin irritation. The benchmark for a high performance score is the shave given by a high-end, five-blade manual razor.
Ease of use is equally weighted between controls (are they easy to read and operate?) handle comfort, heaviness, and the level of pressure required for a close shave.
Battery-life testing is conducted in the lab, as is the durability test where we drop each shaver six times from 80cm at different angles (all models came through unscathed).