The HTC One Max, which is rumored to contain a fingerprint sensor (oddly appropriate today), is believed to have a 5.9 inch Super LCD-3 screen with resolution of 1080 x 1920. That works out to a pixel density of 342ppi. A quad-core 2.3GHz Qualcomm Snapdragon 800 is under the hood while 2GB of RAM is on board. A high capacity, for HTC, 3200mAh battery will keep the lights on.
Keep in mind that HTC still needs to make this official. The HTC One Max will be facing plenty of competition upon its birth from the Samsung Galaxy Note 3, the Sony Xperia Z Ultra, and possibly the Nokia Lumia 1520. The latter, also unannounced, is expected to be available next quarter and would be the first phablet powered by Windows Phone. This model is expected to be introduced at the end of this month with a 6 inch screen, 2GB of RAM, a quad-core Qualcomm Snapdragon 800 processor inside, and the GDR3 update.