Not weak - 460gr. VIN1 weighs 300. The solution with two batteries is interesting, but the Chinese will not be able to implement it properly. A lot of marriage will be. How are they with synchronicity? Should one sit and the other not? Two controllers or one for two? .. Well, do not do it right. I do not believe, even if Pocket could not.
And why a removable SSD? And what's the slot, I wonder? E-PCI? If for higher capacity SSD it is unlikely that VIN2 will last for so long. At best, they will release something new. At worst, something will break. Or did it for modem fans)? Type pulled SSD, inserted a modem there (well, there, the SIM-holder screwed ..), and the system to load from USB .. It is doubtful.
Well, the console does not roll VIN2 - relatively heavy, expensive, too technically complex, so that the Chinese can do it properly and can only be used for games. Then it's better to buy Pocket.