Here is an elegant battery case that lets you get more out of your iPhone. The JX iPhone XS Battery Case has a pretty thin profile and lets you talk, play, and watch on your phone longer. It has a smart digital display to show how much juice you have left.
The iPhone XS version of this case has 5000 mAh battery while the iPhone XS Max model has 5500mAh capacity. You can order yours for around $30 at this time.