Sony A7 III vs Sony A550

Below is a comprehensive assessment of the Sony A7 III vs Sony A550, former being a Pro Mirrorless while the latter is a Entry-Level DSLR and they are both offered by Sony. There exists a noticeable gap between the sensor resolutions of the A7 III (24MP) and A550 (14MP) and the A7 III (Full frame) and A550 (APS-C) use different sensor size.

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The A7 III was unveiled 8 years later than the A550 and that is quite a sizable difference as far as technology is concerned. Both cameras offer different body type with the Sony A7 III being a SLR-style mirrorless camera and the Sony A550 being a Compact SLR camera.

Before getting in to a detailed comparison, below is a quick summation of how the A7 III scores versus the A550 with regards to portability, imaging, features and an overall grade.

This is a preview of the gallery photos for Sony Alpha A7 III & Sony Alpha DSLR-A550. The full galleries are available at Sony A7 III Gallery & Sony A550 Gallery.

If you are looking to lug around your camera, you'll need to factor its weight and dimensions. The Sony A7 III features outer dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 650 grams (1.43 lbs) whilst the Sony A550 has dimensions of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") with a weight of 632 grams (1.39 lbs).

Analyze the Sony A7 III vs Sony A550 in our newest Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary dependant on the lens you are using at that time. Here is the front view dimension comparison of the A7 III compared to the A550.

Looking at dimensions and weight, the portability grade of the A7 III and A550 is 63 and 63 respectively.

More often than not, it is difficult to visualize the contrast between sensor measurements just by reviewing specifications. The graphic below might provide you a clearer sense of the sensor dimensions in the A7 III and A550.

To sum up, both cameras offer different resolutions and different sensor measurements. The A7 III having a bigger sensor is going to make getting shallower DOF less difficult and the Sony A7 III will deliver more detail having an extra 10 Megapixels. Higher resolution can also help you crop shots a little more aggressively. The more modern A7 III provides an edge in sensor technology.