What does ハムスターの顔 look like on HTC?

On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.

When did HTC add ハムスターの顔?

HTC first drew ハムスターの顔 in Sense 7, released 2015年3月30日.

HTC Corporation has shipped 2 versions of ハムスターの顔. Each is dated, so you can see when the design changed.

HTC

HTC Corporation has drawn ハムスターの顔 2 times. Every revision HTC has shipped is below, newest first.

What does ハムスターの顔 look like on HTC?: On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.
When did HTC add ハムスターの顔?: HTC first drew ハムスターの顔 in Sense 7, released 2015年3月30日.
How many times has HTC redrawn ハムスターの顔?: HTC Corporation has shipped 2 versions of ハムスターの顔. Each is dated, so you can see when the design changed.

HTC artwork for this emoji spans 2015 to 2016.