Sony A55 vs YI M1

Below, we will be comparing the Sony A55 and YI M1, former is a Entry-Level DSLR while the latter is a Entry-Level Mirrorless by brands Sony and YI. The sensor resolution of the A55 (16MP) and the M1 (20MP) is pretty close but the A55 (APS-C) and M1 (Four Thirds) possess different sensor sizes.

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The A55 was manufactured 7 years before the M1 which is a fairly sizable difference as far as camera technology is concerned. Both of the cameras come with different body type with the Sony A55 being a Compact SLR camera and the YI M1 being a Rangefinder-style mirrorless camera.

Before going straight into a in-depth comparison, below is a short introduction of how the A55 scores vs the M1 with regards to portability, imaging, features and an overall mark.

Following is a preview of the gallery images for Sony SLT-A55 & YI M1. The entire galleries are viewable at Sony A55 Gallery & YI M1 Gallery.

When you are looking to travel with your camera, you are going to need to consider its weight and proportions. The Sony A55 has got outer dimensions of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") along with a weight of 500 grams (1.10 lbs) whilst the YI M1 has measurements of 114mm x 64mm x 34mm (4.5" x 2.5" x 1.3") with a weight of 350 grams (0.77 lbs).

Look at the Sony A55 and YI M1 in our completely new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will change based on the lens you are utilizing at that time. Below is the front view dimensions comparison of the A55 and the M1.

Factoring in dimensions and weight, the portability score of the A55 and M1 is 67 and 87 respectively.

Typically, it is very difficult to visualize the contrast in sensor dimensions purely by researching a spec sheet. The picture here should provide you a more clear sense of the sensor sizes in the A55 and M1.

Clearly, both the cameras posses different megapixel count and different sensor dimensions. The A55 due to its bigger sensor is going to make achieving shallow depth of field easier and the YI M1 will render greater detail due to its extra 4MP. Higher resolution can also make it easier to crop photographs somewhat more aggressively. The more aged A55 will be disadvantaged in sensor technology.