No, the Pebble used a Sharp Memory LCD, a different transflective technology. It can only do greyscale while pixelQi uses prisms to separate the colors. That's why you get color with backlight and greyscale out in the sun.
Eh? My Pebble Time has a color screen, and it sure is transflective.
I would kill for an equivalent display in a laptop - saturated colours and eink readability in direct sunlight with 30hz refresh