Aava Mobile Inari 8 is probably the only windows 8 tablet with removable battery. It was spotted in Japan Ministry of Internal Affairs and Communications and that is why we do not have complete Aava Mobile Inari 8 specifications but we do not know that it has strong build quality.
Aava Mobile Inari 8 specifications include wireless LAN, Bluetooth 4.0, micro USB port, 3.5 mm audio jack, LTE broadband radio (supports FDD-LTE 2100 (B1) / 1500 (B21) / 800 (B19) MHz, W-CDMA 2100 (I) / 800 (VI / XIX) MHz) and windows 8.1. Since the screen of the tablet is less than 10 inches you also get free one year license of Office 365 office suite. It has several LED lights on the front and a removable battery that is not common on even the best windows 8.1 tablets. This windows 8.1 tablet was pushed to the Japanese government department in the second half of January 2015.
Unfortunately we do not have more information on the technical specifications and nor do we have official Aava Mobile Inari 8 price as it is not released for the consumer market.