Cả 2 phiên bản GR HDF mới của Ricoh vẫn tiếp tục sử dụng cảm biến APS-C 24MP. ddiemer khác biệt nhất đến từ 2 ống kính 28mm trên GR III và 40mm trên GR IIIx. Ngoài ra, trọng lượng của GR IIIx cũng nặng hơn 5g.
| RICOH GR III HDF | RICOH GR IIIx HDF | |
|---|---|---|
| Lens construction | 6 elements in 4 groups (2 aspherical lens elements) | 7 elements in 5 groups (2 aspherical lens elements) |
| Focal length, aperture | 18.3mm (Approx. 28mm in 35mm equivalent focal length), F2.8-F16 | 26.1mm (Approx. 40mm in 35mm equivalent focal length), F2.8-F16 |
| Focus range | Normal: Approx. 0.1m~∞, Macro Mode: Approx. 0.06m~0.12m | Normal: Approx. 0.2m~∞, Macro Mode: Approx. 0.12m~0.24m |
| Dimensions | Approximately 109.4(W)×61.9(H)×33.2(D)mm (excluding protrusions | Approximately 109.4(W)×61.9(H)×35.2(D)mm (excluding protrusions) |
| Weight | Approximately 257g (Included dedicated battery and SD memory card), Approximately 227g (Body only) | Approximately 262g (Included dedicated battery and SD memory card), Approximately 232g (Body only) |