A slimmer version of the firm's 10400mAh portable charger. It features the same brushed metal design as its previous power banks Its energy density has been increased by 30 percent to 735 Wh/L and the volume has been decreased by 21.4 percent, when compared to the original 10400mAh offering. The 60.4mm-wide power bank weighs 207 grams as compared to the 77mm-wide Mi 10400mAh Power Bank that weighs 250 grams.