The One Mini 2 is aesthetically very similar to its larger sibling, which is a good thing, but internally it has been downgraded in every major department, not least in relying on a quad-core
Snapdragon 400 chip (with 1GB of RAM and 16GB of storage) instead of the extremely battery-efficient Snapdragon 801 in the M8. On the other hand, those upgrading from a last-gen HTC One Mini might seem some improvement in performance, but the older phone's chip was only dual-core, not quad.
The One Mini 2 also drops the M8's secondary depth camera and Ultrapixel sensor in favor of a more bog-standard, 13-megapixel module -- not a bad switch, perhaps, to those who regard HTC "Duo Camera" as a gimmick, but to our minds it's a serious compromise that results in obviously worse low-light performance, and frankly we'll miss the M8's fast and enjoyable selective-focus effects.
