Reasons to choose GR Digital 4
Released in 2011, GR Digital 4 has about 42 mm² of sensor area, 10.4 MP effective resolution, and a 190 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Ricoh GR Digital 4
vs Ricoh PX
VS
Sensor area
42 mm²
GR Digital 428 mm²
PX- Area ratio
- 1.49:1
- Absolute difference
- 14 mm²
- Relative difference
- 49.2%
The GR Digital 4 has the larger sensor area. More area usually means greater light-gathering potential, though real image quality still depends on sensor architecture and generation.
Key specification differences
GR Digital 4MetricPX
10.4 MPEffective pixels16 MP
7.53 × 5.64Sensor6.16 × 4.62
2.02 µmPixel pitch1.33 µm
4.08 µm²Pixel area1.78 µm²
24.49 MP/cm²Pixel density56.22 MP/cm²
4.6Crop factor5.62
—Maximum video—
190 gWeight136 g
SDHC, Secure DigitalStorageSDHC, Secure Digital
Lithium-Ion DB65 rechargeable battery Li-ion batteryBatteryLithium-Ion DB-100 rechargeable battery 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 GR Digital 4 has the larger sensor area. The PX has the lighter body. The PX has the higher effective resolution. The GR Digital 4 and PX were both released in 2011. Also consider the lens system and subjects you shoot.
Reasons to choose PX
Released in 2011, PX has about 28 mm² of sensor area, 16 MP effective resolution, and a 136 g body. Use these values to narrow the field, not as an overall image-quality score.