Welcome to an increasingly crowded scene
>> The tiniest of the three, the Artik 1, is just 12mm square, which Samsung says makes it the industry's smallest IoT module.
Um, wouldn't that be something like an ESP8266-based module? The -09 variant is 10x10mm. Admittedly, it doesn't have a display output, but if you're an IoT sensor module why would you need that? The entire ESP8266-range does, however, have a full wifi stack and Tx/Rx module in silicon.
Don't get me wrong - Sammy can send me some free samples if they wish!