Embodiment relates to a semiconductor light emitting device for a display pixel and a display device including the same. A semiconductor light emitting device for a display pixel according to an embodiment includes a light emitting structure including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, the first conductivity type semiconductor layer in the semiconductor light emitting device for a display pixel, a first contact electrode electrically connected to, a metal layer disposed under the first conductivity-type semiconductor layer, a second contact electrode disposed on the second conductivity-type semiconductor layer, and a passivation disposed on the light emitting structure may contain layers. The metal layer may include a magnetic material, and a weight ratio of the magnetic material to the weight of the semiconductor light emitting device may be 0.25% to 36.75%.