If they are having issues with battery life being short, I can almost guarantee that is the reason there was no 4g included on this phone. 4g is a freaking battery hog, atlease lte is. all I have to say is that you havnt seen bad battery life till you have used an htc thunderbolt in a 4g area when on the stock rom. The first day I had 4g on my thunderbolt it was in my pocket all day because I was climbing around in an attic pulling wire. the battery died in 7 hours vs about 20 hours in 3g. I went home that night and rooted it so I could get off the god awful stock rom.