Moving to Brazil

I am moving to Brazil where their 4G rollout is promised for April next year on 2600mhz. I am struggling to find a phone/tablet/laptop with this frequency. What is the best/easiest/most cost effective way to be prepared in order to be able to have 4G mobile access via usb modem/connect cards/dongles?

Assuming they pull it off 4G could be important to have as their 3G is very slow and with some providers is slower than our 2G. I will take my unlocked Galaxy Ace with quadband and tethering capability, but that will only give me 3G.

Samsung S3 LTE and Note II LTE off the top of my head.

NOTE: Many phones have multiple variants, eg. 3G and 4G LTE models, and then the LTE model may have different versions for the different networks.

Personally I'd opt for a mifi device, and an external battery pack to extend its mobile life, then you can pick and choose the best phones based on other features like screen/apps etc

LTE while more advanced in other countries is still very much a catch up game for the handset manufacturers, i.e. while UK is late we are still only just seeing the handsets appear anywhere in the world.

So with a mifi like the E398 I can set up my office on the move - phone and laptop/s.

with a usb modem like the E392 I can access with the laptop. If I want a wifi zone i can stick it in a portable modem to get same effect as the E398.

if 4G too expensive/unavailable I can just tether the laptop off my 3G phone which has tethering function

with 3G i should be ok for voip calls at average Brazilian 3G speeds

many thanks