The HTC 10 Lifestyle will stand in place of the proper HTC 10 in some parts of the world, India so far confirmed. Much like the LG G5 in certain regions, the HTC 10 Lifestyle comes with a Snapdragon 652 chipset, where the Snapdragon 820 should have been, and it only gets 3GB of RAM and a single 32GB storage option. The other downgrade is LTE speed, but it comes as part of the chipset package. As opposed to the HTC 10's Cat.9 (450Mbps down, 50Mbps up), the 10 Lifestyle only gets Cat.6 (300Mbps/50Mbps). The rest is thankfully all the same. That includes the 5.2-inch QHD Super LCD...
Source: http://www.gsmarena.com/htc_10_lifestyle_is_the_flagship_for_some_unlucky_regions-news-17736.php
