RM-1089Two new info bytes emerge about the next mid-range Lumia, which we have seen passing certification at FCC as RM-1090.

The first one is about its single-sim variant RM-1089 now passing certification at FCC. The RM-1089 has same frequencies as of RM-1090 and even RM-1090 is mentioned in its certification.

IndonesiaThe second byte is that RM-1090, the dual-sim variant has passed certification in Indonesia. This further confirms that it is not a China specific device, but will come globally with dual-sim and single-sim variants. We have already caught it traveling to India.

It has 960 x 540 display resolution, which is supported by Windows Phone 8.1 update 1. The size specs of 139.97 x 71 hint about it having a 5-inch display. So, it very well looks like a mid-ranger slotted between Lumia 630 and Lumia 730.