What does Pulsante Rotondo 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 Pulsante Rotondo?

HTC first drew Pulsante Rotondo in Sense 7, released 30 marzo 2015.

HTC Corporation has shipped 2 versions of Pulsante Rotondo. Each is dated, so you can see when the design changed.

HTC

HTC Corporation has drawn Pulsante Rotondo 2 times. Every revision HTC has shipped is below, newest first.

What does Pulsante Rotondo 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 Pulsante Rotondo?: HTC first drew Pulsante Rotondo in Sense 7, released 30 marzo 2015.
How many times has HTC redrawn Pulsante Rotondo?: HTC Corporation has shipped 2 versions of Pulsante Rotondo. Each is dated, so you can see when the design changed.

HTC artwork for this emoji spans 2015 to 2016.