- Wavelengths
- The Omnilux Contour Face emits at 633 nm, 830 nm. The Shark CryoGlow (FW312) emits at 415 nm, 630 nm, 830 nm. Both cover red and near-infrared, the two ranges with the strongest published evidence for skin.
- LED count
- The Shark CryoGlow (FW312) carries more diodes: 160 against 132. Diode count sets how evenly light reaches the face — a coverage figure, not an efficacy figure.
- Published irradiance
- Only the Omnilux Contour Face publishes an irradiance figure (~30 mW/cm²). The Shark CryoGlow (FW312) does not, so the dose the two masks deliver cannot be compared.
- Regulatory
- Neither prints a searchable 510(k) number; both state their clearance without one. These devices are FDA cleared, not FDA approved — clearance is a safety and manufacturing signal, not proof of results.
- Session and modes
- The Omnilux Contour Face runs 10 min per session (programa único, 3–5×/semana). The Shark CryoGlow (FW312) runs 8 min (3 programas específicos + enfriamiento para el contorno de ojos).
- Fit and power
- Omnilux Contour Face: silicona flexible; controlador recargable. Shark CryoGlow (FW312): rígida, multizona; con cable USB-C (el enfriamiento necesita alimentación).