When were the Lumia 710 and 521 made?

[Windows Central Question]

when were lumia 710 and 521 made?

what years were lumia 710 and 521 introduced?

 

[nallWhite]

Re: when were lumia 710 and 521 made?

Gsmarena.com would have that info

 

[P1ng0fDeath]

Re: when were lumia 710 and 521 made?

521: early 2013
710: late 2011 - early 2012

 

[RumoredNow]

Re: when were lumia 710 and 521 made?

Gsmarena.com would have that info

Nokia Lumia 710 vs. Nokia Lumia 520 - GSMArena.com

The Lumia 521 is actually the RM-917variant of the 520 which debuted April 2013
Lumia 710 came out December 2011