If you want to purchase the7inch tablet then you have couple of choices like HTC Flayer, Samsung Galaxy 7.7 and galayx 7 plus. Best choice will be in this segment are 7.7 and 7 plus. Let us take the difference samsung galaxy 7 .7 vs 7 plus tab.
Display – Tab 7.7 has 7.7 inch AMOLED display with 1280 x 800 pixel resolution. Tab 7.0 Plus has 7 inch IPS display with 1024 x 600 resolution. This means you will see more on Tab 7.7 at a time. Tab 7.7 got good resolution and display quality. You will be getting more display work area in tab 7.7 and superb display quality.
Processor: 7.7 is powered by 1.4GHz dual core processor. 7 Plus has 1.2GHz dual core processor. Here negligible difference in processor speed
Battery – 7.7 has 5100mAh battery. 7 Plus has 4000mAh battery. 7.7 got good battery backup you will be getting around 30% more battery backup. Single recharge sustains full day heavy use.
Storage – 7.7 is offered with 16 / 32 / 64 GB. On the other hand, Galaxy tab 7 plus comes with either 16 / 32 GB. Both have micro SD card that can be used to easily increase internal storage.
Samsung galaxy 7.7 is light weight tablet in this range. It weights 330 grm and it is 5gm lesser than galaxy 7 plus. You can feel comfortable holding this tab, If you want to use 7.7 tab for reading the books and news paper then this is the right choice, grab it.
Other than above differences, both have same specs. If you have another 150USD then you should go for galaxy tab 7.7. You will be getting good display and best in class battery backup. If you want to use the tablet as eReader then you should go for 7.7 inch one.