The Ricoh GR IV is 2.6 mm narrower, 6.7 mm shorter, 10.4 mm thinner and 60 g lighter than the Panasonic Lumix TZ99 / ZS99.
| Panasonic Lumix TZ99 / ZS99 | Ricoh GR IV | |
|---|---|---|
| Size (W × H × D) | 112 × 67.8 × 43.1 mm | 109.4 × 61.1 × 32.7 mm |
| Weight | 322 g | 262 g |
| Lens | Fixed lens | Fixed lens |
| Sensor | 1/2.3" | APS-C |
| Announced | 2024 | 2025 |