Pentax XG-1 vs Sony A7R III

Here is a extended analysis of the Pentax XG-1 and Sony A7R III, one being a Small Sensor Superzoom and the latter is a Pro Mirrorless by brands Pentax and Sony. There exists a sizeable gap between the resolutions of the XG-1 (16MP) and A7R III (42MP) and the XG-1 (1/2.3") and A7R III (Full frame) possess totally different sensor sizes.

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The XG-1 was manufactured 4 years prior to the A7R III and that is quite a large gap as far as technology is concerned. Both of these cameras come with different body type with the Pentax XG-1 being a SLR-like (bridge) camera and the Sony A7R III being a SLR-style mirrorless camera.

Before we go straight into a in depth comparison, below is a brief summary of how the XG-1 grades vs the A7R III with regard to portability, imaging, features and an overall rating.

Here is a preview of the gallery photos for Pentax XG-1 and Sony Alpha A7R III. The entire galleries are provided at Pentax XG-1 Gallery and Sony A7R III Gallery.

For those who are intending to carry your camera regularly, you have to factor its weight and dimensions. The Pentax XG-1 enjoys external measurements of 119mm x 89mm x 98mm (4.7" x 3.5" x 3.9") along with a weight of 567 grams (1.25 lbs) while the Sony A7R III has dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs).

Look at the Pentax XG-1 and Sony A7R III in the all new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you are employing at that moment. Underneath is the front view scale comparison of the XG-1 against the A7R III.

Considering dimensions and weight, the portability grade of the XG-1 and A7R III is 66 and 63 respectively.

More often than not, it's hard to see the difference between sensor sizing purely by looking at technical specs. The visual here should offer you a much better sense of the sensor sizing in the XG-1 and A7R III.

As you can tell, both of the cameras posses different resolutions and different sensor sizing. The XG-1 featuring a tinier sensor will make achieving bokeh trickier and the Sony A7R III will resolve extra detail due to its extra 26 Megapixels. Higher resolution can also make it easier to crop photographs somewhat more aggressively. The older XG-1 is going to be disadvantaged in sensor technology.