X₁

Y

X₂

Y

X₃

Y

X₄

Y

X₅

Y

HUAWEI

grey correlation degree

0.9027

0.8174

0.6928

0.8047

0.7743

grey correlation order

X₁ > X₂ > X₄ > X₅ > X₃

Apple

grey correlation degree

0.7982

0.7637

0.7096

0.7732

0.6890

grey correlation order

X₁ > X₄ > X₂ > X₃ > X₅

SONY

grey correlation degree

0.7274

0.7439

0.5595

0.7674

0.6425

grey correlation order

X₄ > X₂ > X₁ > X₅ > X₃

Samsung

grey correlation degree

0.9172

0.8741

0.5762

0.9306

0.9219

grey correlation order

X₄ > X₅ > X₁ > X₂ > X₃