Olympus E-M5 III vs Sony A7 IV

Lets look a little more closely at the Olympus E-M5 III vs Sony A7 IV, former is a Advanced Mirrorless while the other is a Pro Mirrorless by companies Olympus and Sony. There is a considerable difference between the resolutions of the E-M5 III (20MP) and A7 IV (33MP) and the E-M5 III (Four Thirds) and A7 IV (Full frame) come with different sensor sizing.

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The E-M5 III was revealed 24 months prior to the A7 IV making the cameras a generation away from each other. Both of the cameras offer the identical body type (SLR-style mirrorless).

Before diving straight into a in-depth comparison, below is a quick view of how the E-M5 III scores against the A7 IV for portability, imaging, features and an overall mark.

Below is a sample of the gallery pictures for Olympus OM-D E-M5 III & Sony Alpha A7 IV. The full galleries are viewable at Olympus E-M5 III Gallery & Sony A7 IV Gallery.

For anybody who is looking to travel with your camera regularly, you have to take into account its weight and measurements. The Olympus E-M5 III offers physical measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") along with a weight of 414 grams (0.91 lbs) while the Sony A7 IV has proportions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") accompanied by a weight of 699 grams (1.54 lbs).

Check the Olympus E-M5 III vs Sony A7 IV in our completely new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ based on the lens you are working with at the time. Below is the front view size comparison of the E-M5 III vs the A7 IV.

Considering size and weight, the portability rating of the E-M5 III and A7 IV is 80 and 61 respectively.

In many cases, it's difficult to visualize the difference between sensor dimensions just by reviewing a spec sheet. The picture here will provide you a more clear sense of the sensor sizing in the E-M5 III and A7 IV.

Clearly, both of the cameras offer different resolutions and different sensor dimensions. The E-M5 III having a tinier sensor is going to make achieving shallower depth of field more difficult and the Sony A7 IV will offer you more detail because of its extra 13MP. Greater resolution can also let you crop pics a little more aggressively. The more aged E-M5 III is going to be behind when it comes to sensor technology.