This fits your. Specifications:
Battery type: Lithium-polymer
Capacity: 4000 mAh
Working Temperature: 0℃-45℃
Input/Output : DC 5.0V
Dimensions: 5.8x2.9x0.72 inch Box Content:
1 x 4000mAh iPhone X Battery Case
1 x User Manual Optimal & Safe Usage:
1.Batteries are sensitive and should not be left in the sun.
2.You had better use your original stock cable or a third-party-certified lightning cable for charging the battery case.
3.Please do not wiggle the lightning port when you plug or unplug the cable.
iPhone X Battery Case Magnetic Kitstand Slim Rechargeable Battery Portable Charger Protective Charging Case Power Bank Cover for Apple iPhone 10 iPhone X 4000mAh Rose Gold/Pink B078NLKS1D