1/1.3-Inch Mobile Sensor (9.6×7.2 mm)
Direct Answer
The 1/1.3-Inch Sensor format (measuring approximately 9.6 × 7.2 mm with an active area of ~69.1 mm² and a 12.0 mm diagonal) is the modern flagship smartphone camera sensor format. Operating with a ~3.6× crop factor and ultra-high pixel counts (50 MP to 200 MP with 4-in-1 / 16-in-1 pixel binning), it powers flagship mobile photography.
Source: Samsung ISOCELL (GN2/HP2) / Sony Semiconductor (IMX800/LYT-800) Specifications
Specs
| Width × Height | 9.6 × 7.2 mm (approximate nominal dimensions) |
| Diagonal Dimension | 12.0 mm |
| Active Surface Area | 69.1 mm² (approx. 2.45× larger than 1/2.3" action cam sensors) |
| Crop Factor | 3.61× (relative to 35mm full frame) |
| Native Aspect Ratio | 4 : 3 |
| Pixel Binning Architecture | Tetra2pixel / Quad Bayer: Combines 0.6 µm subpixels into 2.4 µm virtual pixels at 12.5 MP output |
| Flagship Deployments | Samsung Galaxy S23/S24 Ultra (ISOCELL HP2), iPhone 14/15/16 Pro main camera (1/1.28"), DJI Action 4/5 Pro |
Mobile Optical Physics & Pixel Binning
Fitting a $1/1.3\text{-inch}$ sensor inside an $8\text{ mm}$ thick smartphone chassis requires extreme computational photography and complex 7-element plastic aspherical lenses ($f/1.7$). By capturing at $200\text{ MP}$ ($0.6\text{ µm}$ pixels) in bright daylight and merging $16$ adjacent pixels into a single $2.4\text{ µm}$ super-pixel in low light, mobile sensors match the low-light signal-to-noise ratio of dedicated cameras.