Looks like it will be 6.3 inches https://www.forbes.com/sites/gordonkelly/2018/04/22/samsung-galaxy-s9-plus-galaxy-note-9-new-galaxy-smartphone-camera-specs-price-release-date/amp/
Yup, it seems like it. The more spectrum they devote to LTE, the faster the speeds and the greater the capacity for VoLTE calls. I'm really curious to see how fast VoLTE adoption will be on Sprint.