The competition for the best-performing smartphone is fierce and we may have a new champ soon - the ZTE Axon 10 Pro 5G - which topped the charts at AnTuTu. The Axon counts itself among the many Snapdragon 855-powered phones, but interestingly enough it's not the chipset that secured its win, it's the storage. AnTuTu score breakdown for the ZTE Axon 10 Pro 5G AnTuTu reports that the Axon 10 Pro 5G is the first phone to combine the S855 chipset with the F2FS file system. It was developed by Samsung specifically for use with flash storage, which makes it much faster than the ext4 used...
Source: https://www.gsmarena.com/zte_axon_10_pro_5g_tops_antutu_charts_thanks_to_faster_storage-news-36656.php