Stunning screen. Samsung also relies on a high-resolution, Super AMOLED screen in its Galaxy Tab S 8.4. It is the tablet's absolute highlight. The in-house processor is good, but cannot compete with current high-end SoCs. Otherwise, the equipment is state-of-the-art and even includes LTE. Only better speakers and NFC would be appreciated.
http://www.notebookcheck.net/Samsung-Galaxy-Tab-S-8-4-Tablet-Review.125600.0.html
How long is the Big Buck Bunny H.264 1080p test on this tab?
According to the Samsung User Manual, the battery can be replaced at a Samsung Repair Centre.