Olympus E-M1X vs Sony A7 IV

Here is a in-depth comparison of the Olympus E-M1X and Sony A7 IV, both Pro Mirrorless cameras by rivals Olympus and Sony. There is a large difference among the resolutions of the E-M1X (20MP) and A7 IV (33MP) and the E-M1X (Four Thirds) and A7 IV (Full frame) have totally different sensor dimensions.

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The E-M1X was announced 3 years prior to the A7 IV and that is a fairly serious difference as far as camera tech is concerned. Both cameras have the same body design (SLR-style mirrorless).

Before we go right into a in depth comparison, here is a brief summary of how the E-M1X grades against the A7 IV in the way of portability, imaging, features and an overall rating.

The following is a sample of the gallery pictures for Olympus OM-D E-M1X & Sony Alpha A7 IV. The whole galleries are provided at Olympus E-M1X Gallery & Sony A7 IV Gallery.

When you are aiming to carry your camera frequently, you will want to take into account its weight and size. The Olympus E-M1X has got outside dimensions of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") accompanied by a weight of 997 grams (2.20 lbs) while the Sony A7 IV has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") and a weight of 699 grams (1.54 lbs).

See the Olympus E-M1X and Sony A7 IV in our newest Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary depending on the lens you are working with at the time. Here is a front view measurement comparison of the E-M1X against the A7 IV.

Using size and weight, the portability score of the E-M1X and A7 IV is 54 and 61 respectively.

Usually, it is very hard to envision the difference in sensor sizing purely by researching specifications. The graphic below should offer you a stronger sense of the sensor dimensions in the E-M1X and A7 IV.

Plainly, each of these cameras have different megapixel count and different sensor sizing. The E-M1X using its smaller sensor will make shooting bokeh more challenging and the Sony A7 IV will result in extra detail with its extra 13MP. Greater resolution will also let you crop pics a bit more aggressively. The older E-M1X will be disadvantaged in sensor innovation.