Olympus E-M10 vs Sony A7 IV

Here is a thorough analysis of the Olympus E-M10 vs Sony A7 IV, former being a Entry-Level Mirrorless while the other is a Pro Mirrorless by rivals Olympus and Sony. There is a considerable difference among the image resolutions of the E-M10 (16MP) and A7 IV (33MP) and the E-M10 (Four Thirds) and A7 IV (Full frame) offer totally different sensor measurements.

Photography Glossary

The E-M10 was launched 8 years prior to the A7 IV and that is a fairly large difference as far as camera tech is concerned. The two cameras have the same body design (SLR-style mirrorless).

Before we go into a thorough comparison, here is a short summary of how the E-M10 scores vs the A7 IV when it comes to portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Olympus OM-D E-M10 & Sony Alpha A7 IV. The complete galleries are viewable at Olympus E-M10 Gallery & Sony A7 IV Gallery.

When you are aiming to carry your camera, you will want to take into account its weight and size. The Olympus E-M10 has external dimensions of 119mm x 82mm x 46mm (4.7" x 3.2" x 1.8") having a weight of 396 grams (0.87 lbs) whilst the Sony A7 IV has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") having a weight of 699 grams (1.54 lbs).

Check out the Olympus E-M10 vs Sony A7 IV in our brand new Camera plus Lens Size Comparison Tool.

Remember, the weight of an ILC will vary dependant on the lens you are utilising at the time. Here is a front view size comparison of the E-M10 against the A7 IV.

Factoring in size and weight, the portability score of the E-M10 and A7 IV is 82 and 61 respectively.

Oftentimes, it's hard to see the contrast in sensor sizing only by looking through a spec sheet. The visual underneath will give you a better sense of the sensor sizes in the E-M10 and A7 IV.

As you can see, both of the cameras provide different megapixel count and different sensor sizing. The E-M10 featuring a smaller sensor will make shooting shallow depth of field tougher and the Sony A7 IV will provide you with extra detail utilizing its extra 17 Megapixels. Greater resolution will also let you crop pics more aggressively. The older E-M10 will be disadvantaged in sensor innovation.