What are the differences between the two Samsung Galaxy Tab 4 7.0" models? I have just got a new Samsung GALAXY Tab 4 7.0" (SM-T230NU).

What is the difference (or improvements) between the 'stock' SM-T230 model GALAXY Tab 4 7.0" and the 'newer' SM-T230NU, recently released for US/Canada and in EU?

Are there also other NU devices? I have also seen references to the GALAXY Tab 4 10.1" as SM-T530NU.



I have found one possible issue, with the SM-T230 not having multi-user mode:


  The multi users setting is not available. According to the manual it should be at settings => General => Users.


(My device does have multi-user capability)



I also saw a reference to the two different models on XDA Developers:


  Do make sure your tablet is a T230NU model and not just a T230
  model.




UPDATE: 04-Jul-2014

There are three variants: T230, T230NT, T230NU

from: Samsung T230 | T230NT | T230NU Galaxy Tab 4 7.0 WiFi Firmwares
According to other reviews, the plain SM-T230 does not support OTG, 
but the SM-T237p does.  

I remember how disappointed I was to find this with my SM-T210R.