By going through the previous leak manual, Galaxy Tab S3 is coming with a keyboard like a dock akin like Microsoft Surface tablets and iPad Pro keyboard. This keyboard draws their power from their tablet power so that they do no rely on Bluetooth. Images of Tab S3 with such keyboard is already on the internet.
The image is not clear but some information can be taken from it. The idea of keyboard design is taken from Apple’s Smart Keyboard. The angle, how it will be placed on the tablet is same as Apple’s keyboard. The spacing between and the layout of the keys are also identical to Apple’s keyboard.
Some things are not clear like the case of the tablet is a folio style case or simply an attachment. But the keyboard is made from the plastic instead of the soft material like one use in Apple’s keyboard dock. So we can consider it as a separate accessory.
S Pen stylus
Samsung might have a 32GB or 64GB of internal expandable. Rear Camera can be of a 12-megapixel with a 5-megapixel front camera. Also, It has Android 7.0 Nougat on board. But this all is based on rumors. We will update you more.