Product description:

OKRA0370BNU253F7 is a 3.7 inch black and white color E-ink display, 416x240 resolution,communicated through SPI interface,with embedded controller (COG package) and waveform stored on-chip, supports 2 grayscales   and partial refresh.                                                                                                           

Advantage:   Ultra-low power consumption,viewing angle close to 180 degrees, readable in sunlight. It is an excellent choice   for applications such as shelf labels, smart labels, smart home applications, industrial instruments, smart cards and other related products.