Actually, there were dual os tablets before Teclast X98 Air 3G dual boots, so the Teclast X98 Air 3G dual boots is not the first one boosting dual boots. But, the dual-boot products generally adopts the two following solutions:
Solution one: running another OS in the original OS–the way similar to that of virtual machine. In many devices which don’t have strong specs even for just one OS, you can imagine how bad the fluency could be.
Solution two: after the tablet starts up, two OSs will be activated simultaneously. If you enter one OS, the other one will automatically go to sleep. You can enter the other OS by warm start without restart the OS. This solution has less effect to the dormant OS, but there is still effect.
Given that, Teclast has adopted a brand new way–using BIOS to lead the two boots, so every time you enter an OS, you will find it is a completely independent OS. The switching is slower but the two system won’t affect each other at all. This solution is same as that of computers.
The following video will show you the new way that how Teclast deal with dual-boot switching.
Here is a video to show you How to select operating system with Teclast dual OS tablet: