不及她怀中猫
[bù jí tā huái zhōng māo]
Not as good as Her Arm's Cat implies someone/something falls short compared to 'her cat', potentially expressing admiration or inferiority in regard to what 'she has'. Sometimes, people use animals, especially cats, to symbolize warmth or companionship, thus, indicating someone else provides or holds what the speaker craves or appreciates.