What does 重复按钮 look like on LG?

On LG it is the design shipped in Velvet, shown above at full size. Older revisions are listed beneath it.

When did LG add 重复按钮?

LG first drew 重复按钮 in G3, released 2014年6月15日.

LG Electronics has shipped 4 versions of 重复按钮. Each is dated, so you can see when the design changed.

LG G3

LG shipped a new design for 重复按钮 in G3, released 2014年6月15日. The previous design is shown beside it.

The first LG release we hold for this emoji.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does 重复按钮 look like on LG?: On LG it is the design shipped in Velvet, shown above at full size. Older revisions are listed beneath it.
When did LG add 重复按钮?: LG first drew 重复按钮 in G3, released 2014年6月15日.
How many times has LG redrawn 重复按钮?: LG Electronics has shipped 4 versions of 重复按钮. Each is dated, so you can see when the design changed.