Reasons to choose GR IV
Released in 2025, GR IV has about 361.15 mm² of sensor area, 25.7 MP effective resolution, and a 262 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Ricoh GR IV
vs Sony a7C II
VS
Sensor area
361.15 mm²
GR IV858.01 mm²
a7C II- Area ratio
- 2.38:1
- Absolute difference
- 496.86 mm²
- Relative difference
- 138%
The a7C II has the larger sensor area. More area usually means greater light-gathering potential, though real image quality still depends on sensor architecture and generation.
These cameras were released 2 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
GR IVMetrica7C II
25.7 MP
Effective pixels
33 MP
23.3 × 15.5
Sensor
35.9 × 23.9
3.75 µm
Pixel pitch
5.10 µm
14.05 µm²
Pixel area
26.00 µm²
7.12 MP/cm²
Pixel density
3.85 MP/cm²
1.55
Crop factor
1.00
1920 × 1080 / 60p
Maximum video
3840 × 2160 / 60p
262 g
Weight
514 g
SD UHS-I / internal storage
Storage
SD UHS-II
DB-120 Li-ion battery
Battery
NP-FZ100 Li-ion battery
Amber marks the value that is generally preferable in this comparison context. It is not an overall camera score.
How to choose between these cameras
The a7C II has the larger sensor area. The GR IV has the lighter body. The a7C II has the higher effective resolution. The GR IV is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose a7C II
Released in 2023, a7C II has about 858.01 mm² of sensor area, 33 MP effective resolution, and a 514 g body. Use these values to narrow the field, not as an overall image-quality score.