Photons to Photos posted the first preliminary E-M10III Dynamic Range test. Compared to the first generation E-M10 the camera performs better at Low ISO.

Note: Preliminary data are actual measurements from raw files but not those taken under the usual controlled conditions.

Preorders:
Silver or Black E-M10III at GetOlympus, BHphoto, Adorama and Amazon. In Eu at WexUK and ParkUK.
E-M10III with kit lens at GetOlympus, BHphoto, Adorama and Amazon.
Special E-M10III superkit at Amazon and Adorama.
CS-51B Body Jacket for the E-M10III at BHphoto.

Imaging Resource posted the full Yi M1 review. And it’s very rare nowadays to find reviewers that do not recommend buying a camera. Well, for Imaging Resource the Y1 M1 deserves that negative exception:

At the end of the day, I can only recommend that you purchase the YI M1 in two specific circumstances. You might want one if price is absolutely the most important thing for you, and yet you absolutely need a large sensor and an interchangeable-lens design. Or you might decide to buy it if you actually see the challenging “Stop, think, then stop and think again” experience of shooting with it as a positive thing — which indeed, some photographers may.

But for the average photographer, and especially for the entry-level customer it targets, I simply cannot recommend that you purchase the YI M1. Frankly speaking, you’d do better to defer a lens or accessory purchase, and put a bit more of your cash into buying your camera body instead. And if you can’t afford to do so, I’d suggest that you look for an older (but still recent) camera instead. You’ll get better photos with less fuss, and you’ll enjoy the shooting experience a whole lot more.

The YI M1 can be bought at Amazon US, Amazon DE, Amazon UK.