Olympus E-M1 III vs Olympus TG-820 iHS

Its time to look closer at the Olympus E-M1 III vs Olympus TG-820 iHS, former being a Pro Mirrorless while the latter is a Waterproof and both of them are built by Olympus. There exists a noticeable gap between the sensor resolutions of the E-M1 III (20MP) and TG-820 iHS (12MP) and the E-M1 III (Four Thirds) and TG-820 iHS (1/2.3") offer totally different sensor measurements.

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The E-M1 III was unveiled 8 years later than the TG-820 iHS and that is quite a sizable difference as far as technology is concerned. Each of the cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Olympus TG-820 iHS being a Compact camera.

Before we go right into a detailed comparison, here is a concise summation of how the E-M1 III matches up against the TG-820 iHS in terms of portability, imaging, features and an overall rating.

The following is a preview of the gallery photos for Olympus OM-D E-M1 Mark III & Olympus TG-820 iHS. The full galleries are available at Olympus E-M1 III Gallery & Olympus TG-820 iHS Gallery.

If you're planning to carry your camera regularly, you'll have to think about its weight and dimensions. The Olympus E-M1 III enjoys outer measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) while the Olympus TG-820 iHS has dimensions of 101mm x 65mm x 26mm (4.0" x 2.6" x 1.0") and a weight of 206 grams (0.45 lbs).

Contrast the Olympus E-M1 III vs Olympus TG-820 iHS in our newest Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will vary based on the lens you have attached during that time. The following is a front view over all size comparison of the E-M1 III compared to the TG-820 iHS.

Using dimensions and weight, the portability grade of the E-M1 III and TG-820 iHS is 67 and 92 respectively.

Quite often, its tough to visualise the contrast between sensor sizing just by reviewing technical specs. The visual underneath will help give you a far better sense of the sensor measurements in the E-M1 III and TG-820 iHS.

As you have seen, both cameras feature different megapixel count and different sensor sizing. The E-M1 III using its bigger sensor will make shooting shallow DOF less difficult and the Olympus E-M1 III will offer you extra detail having an extra 8 Megapixels. Higher resolution will make it easier to crop shots way more aggressively. The more recent E-M1 III is going to have an advantage when it comes to sensor innovation.