A:AnswerThat's the same tablet I have, and it fits fine. It's got corners that slip over the corners of the tablet which are on elastic, and you can use the case to prop the tablet up horizontally at two different angles. It also has a magnetic flap closure.
A:AnswerYes it will. Ive fit 3 different type of 8 inch tablets to mine from a samsung to a lenovo to a nextbook. The elastic straps have no problems holding them steady.
A:AnswerThe case will likely fit your Flex tablet. Keep in mind that Best Buy has a 15 day return policy so you could return the case if you are not satisfied.
A:AnswerWe purchased the insignia rotating folio for 8" tablets case for our 8" tablet...it fit great...it would probably be best to get an 8" case for a 7 & 3/4" tablet than the 7" would be, with the stretchable corners it should fit perfectly fine. Plus the backing bends back if you have a camera on the back without having to remove the tablet from the case. Just double check where the camera is and where the corner holders set on your tablet. Hope this helps.