Olympus E-M10 II vs Sony a5100

Below, we will be matching up the Olympus E-M10 II versus Sony a5100, both Entry-Level Mirrorless cameras by manufacturers Olympus and Sony. There exists a big gap among the sensor resolutions of the E-M10 II (16MP) and a5100 (24MP) and the E-M10 II (Four Thirds) and a5100 (APS-C) feature different sensor sizes.

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The E-M10 II was revealed 13 months later than the a5100 which makes the cameras a generation apart from one another. Both of these cameras come with different body type with the Olympus E-M10 II being a SLR-style mirrorless camera and the Sony a5100 being a Rangefinder-style mirrorless camera.

Before delving in to a thorough comparison, below is a concise view of how the E-M10 II grades vs the a5100 for portability, imaging, features and an overall grade.

Following is a preview of the gallery images for Olympus OM-D E-M10 II and Sony Alpha a5100. The full galleries are viewable at Olympus E-M10 II Gallery and Sony a5100 Gallery.

When you are aiming to lug around your camera regularly, you need to take into account its weight and dimensions. The Olympus E-M10 II offers exterior measurements of 120mm x 83mm x 47mm (4.7" x 3.3" x 1.9") having a weight of 390 grams (0.86 lbs) while the Sony a5100 has dimensions of 110mm x 63mm x 36mm (4.3" x 2.5" x 1.4") along with a weight of 283 grams (0.62 lbs).

Check the Olympus E-M10 II versus Sony a5100 in the latest Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change based on the lens you choose at the time. Below is the front view overall size comparison of the E-M10 II compared to the a5100.

Taking into account dimensions and weight, the portability score of the E-M10 II and a5100 is 82 and 89 respectively.

Typically, it is very tough to visualize the gap in sensor measurements only by going through a spec sheet. The visual below should provide you a greater sense of the sensor sizing in the E-M10 II and a5100.

As you can see, each of the cameras have got different megapixel count and different sensor measurements. The E-M10 II using its smaller sensor is going to make getting bokeh more challenging and the Sony a5100 will show more detail because of its extra 8MP. Higher resolution will also allow you to crop photographs much more aggressively. The newer E-M10 II provides a benefit in sensor technology.