Both cameras has almost the same price value so what may be the main differences when consider their specs list. The Fujifilm X70 offers a 16.3-megapixel APS-C sized X-Trans CMOS II sensor while Ricoh GR II offers exactly the same resolution and sensor size.
The Fujifilm X70 has a standard ISO range of 200-6400, which expands to 100-51200. It can shoot continuously at 8 frames per second, though only for ten photos. Naturally, it has the full set of Film Simulation Modes, save for the new ACROS mode on the X-Pro2. Video can be recorded at 1080/60p, with a maximum bitrate of 36Mbps.