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Electric shavers

Working name: OpenShave. The fourth category in the Open Consumables device knowledge graph.

What's here

  • Units, the shaver bodies themselves, with replacement heads or cassettes listed by mount family.
  • Heads, OEM and aftermarket rotary head modules, with the shavers they fit.
  • Foil cassettes, reciprocating foil assemblies, kept separate from rotary heads.

Status

Reference layer only. OpenShave is not yet an active measurement subproject; activation depends on OpenBrush producing a published measured baseline first. This category records provenance-tagged compatibility data sourced from manufacturer pages and aftermarket listings, with no project measurement claims.

Coverage includes Xiaomi / Mijia, ENCHEN, Soocas, ShowSee and Riwa records, with current Xiaomi replacement assemblies added where the manufacturer names them. Some older entries retain unresolved source notes; those notes are labelled where an exact URL was not recorded. They are not refreshed manufacturer evidence.

Scope

In scope for the reference layer:

  • Chinese-IoT cluster consumer electric shavers (Xiaomi / Mijia, Soocas, ShowSee, ENCHEN, Riwa)
  • the mechanical head-mount interface between body and replacement head, including drive socket / shaft geometry, latch / magnetic retention, and cutter-pod outer envelope as identification dimensions
  • rotary replacement heads, tracked under the heads part class
  • reciprocating foil cassettes, tracked under the separate cassettes part class
  • buyer-visible device codes, head codes, and aftermarket fitment vocabulary, where the manufacturer or marketplace surfaces them

Out of scope at this stage:

  • shave quality, wet / dry performance, motor power, battery life, irritation claims, styling preferences
  • independent verification of head count, head type, or material claims (manufacturer / marketplace copy only, until measured)
  • Western-brand shavers (Philips Norelco, Braun, Panasonic, Remington): fail the ecosystem-selection prerequisite
  • non-shaving attachments (nose trimmers, sideburn trimmers, cleansing brushes, blackhead brushes, combs)
  • cleaning station / dock cartridges until a dedicated slice ships
  • battery packs, motor electronics, app integration, and any clone-ready geometry

A note on head-mount families

Rotary three-blade shavers from different brands look similar but do not necessarily share a head mount. The OpenShave reference layer uses family-specific working slot names (xiaomi-mijia-s300-s500-rotary, enchen-br1-rotary, riwa-ra-rotary, etc.) rather than a single "rotary 3-blade universal" class because cross-brand convergence is not strong enough to justify a single class at this stage.

Within a brand, marketplaces sometimes group several device codes under one replacement head ("S300 / S500 / MJTXD01SKS 通用机头", "Fit for SOOCAS S3 S5"). Those cross-fit claims are usually marketplace-claim until corroborated by a manufacturer accessory page or measurement.

Some seller titles also encode mechanical clues that have not yet been measured. Two examples that recur in the desk evidence:

  • The phrases 五角形转轴口 and 内5角 ("five-sided drive-socket / shaft-mouth") in Xiaomi S300 / S500 listings.
  • The phrase 四瓣旋转式接口 ("four-petal rotary interface") in Riwa RA-5505 aftermarket listings.

Both are preserved in the slot notes as measurement targets. They are not republished here as geometry claims.

Missing a device or replacement part?

Send a short report with the exact model code or part name. Better sources and contradictory fit evidence are welcome too. For a dead link or a claim that needs checking, just identify the problem. GitHub requires sign-in; you can also copy a report and prepare it for your user. Maintainers can handle the data-file edits.