Olympus TG-4 vs Sony A7

Its time to look much closer at the Olympus TG-4 vs Sony A7, former is a Waterproof while the other is a Pro Mirrorless by manufacturers Olympus and Sony. There is a substantial difference among the resolutions of the TG-4 (16MP) and A7 (24MP) and the TG-4 (1/2.3") and A7 (Full frame) enjoy totally different sensor dimensions.

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The TG-4 was introduced 15 months after the A7 making the cameras a generation away from each other. Both of these cameras come with different body type with the Olympus TG-4 being a Compact camera and the Sony A7 being a SLR-style mirrorless camera.

Before diving straight into a detailed comparison, below is a brief summation of how the TG-4 scores against the A7 in relation to portability, imaging, features and an overall mark.

The following is a sample of the gallery pictures for Olympus Tough TG-4 & Sony Alpha A7. The whole galleries are available at Olympus TG-4 Gallery & Sony A7 Gallery.

When you are intending to travel with your camera regularly, you need to take into account its weight and size. The Olympus TG-4 has got outer 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 A7 has specifications of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 474 grams (1.04 lbs).

Compare the Olympus TG-4 vs Sony A7 in our newest Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will differ based on the lens you select at that time. Here is the front view overall size comparison of the TG-4 against the A7.

Taking into consideration size and weight, the portability rating of the TG-4 and A7 is 90 and 78 respectively.

Oftentimes, it is very difficult to envision the contrast in sensor dimensions just by checking out a spec sheet. The picture underneath will give you a greater sense of the sensor sizing in the TG-4 and A7.

Clearly, both of these cameras posses different megapixel count and different sensor dimensions. The TG-4 using its smaller sensor will make shooting shallower DOF more difficult and the Sony A7 will show greater detail using its extra 8MP. Greater resolution will also enable you to crop photos somewhat more aggressively. The more modern TG-4 is going to have a benefit in sensor tech.