Nokia Lumia 630 went official just a few days ago. It is among the first smartphones to run Windows Phone 8.1 with Lumia Cyan out of the box. The smartphone is considered as a successor of the Lumia 620.
Nokia has announced the 3G Lumia 630 will launch in various EU and Asian markets this May for €119, while its dual-SIM sibling should set you back €129. The smartphone will be also released worldwide with LTE connectivity under the Lumia 635 moniker in July for €139. This is at least the official info, but as usual it doesn't include taxes or subsidies.
Nokia has begun taking pre-orders for the single and dual-SIM Lumia 630 in Russia via its official Nokia store. The single-SIM Lumia 630 is priced at €163 (RUB 7,990), while the dual-SIM version costs €173 (RUB 8,490). There is no official release date mentioned though.