Hehe, I don't recall seeing that sigelei before.
Out of curiosity, I spent a few minutes trying to find any info on the web regarding the internals. I came across this ECF blog about the Bobo that was written back in mid 2013 (prior to V5 release). The author states that he was able to determine "that it is, in fact, a version of the Zmax V2" which may specifically mean a V2 or may possibly mean a V3. "A version of" is a confusing statement. At any rate, I doubt that it's a V5 based on the above, in addition to the fact that the blog was written before the V5 came out. I doubt sigelei bothered to upgrade it with V5 internals later on, especially since you can't even find one of these on their website (or anywhere else for that matter). I could be wrong, but I suspect that this model didn't sell very well and was pulled from production.
Now I'm sad. I was waiting for the camo version.