Olympus TG-3 vs Sony A7R IV

Here, we are analyzing the Olympus TG-3 vs Sony A7R IV, one being a Waterproof and the other is a Pro Mirrorless by competitors Olympus and Sony. There exists a huge gap among the sensor resolutions of the TG-3 (16MP) and A7R IV (61MP) and the TG-3 (1/2.3") and A7R IV (Full frame) offer totally different sensor size.

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The TG-3 was launched 6 years earlier than the A7R IV and that is a fairly significant gap as far as camera technology is concerned. Both of the cameras feature different body design with the Olympus TG-3 being a Compact camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before delving into a complete comparison, here is a simple highlight of how the TG-3 matches up vs the A7R IV when it comes to portability, imaging, features and an overall grade.

This is a sample of the gallery pics for Olympus Tough TG-3 and Sony Alpha A7R IV. The complete galleries are available at Olympus TG-3 Gallery and Sony A7R IV Gallery.

For anyone who is aiming to lug around your camera frequently, you are going to need to factor in its weight and measurements. The Olympus TG-3 has got external measurements of 112mm x 66mm x 31mm (4.4" x 2.6" x 1.2") along with a weight of 247 grams (0.54 lbs) while the Sony A7R IV has proportions of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") and a weight of 665 grams (1.47 lbs).

Take a look at the Olympus TG-3 vs Sony A7R IV in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are working with at that moment. The following is a front view overall size comparison of the TG-3 vs the A7R IV.

Taking into consideration dimensions and weight, the portability grade of the TG-3 and A7R IV is 90 and 62 respectively.

Typically, it's hard to visualise the difference in sensor measurements just by viewing a spec sheet. The graphic underneath should provide you a far better sense of the sensor measurements in the TG-3 and A7R IV.

Clearly, both of those cameras come with different megapixels and different sensor measurements. The TG-3 due to its smaller sensor will make achieving shallower DOF trickier and the Sony A7R IV will result in extra detail utilizing its extra 45MP. Greater resolution can also let you crop photos a good deal more aggressively. The older TG-3 will be disadvantaged when it comes to sensor tech.