Nokia Lumia 630 and 635 have swappable neon covers plucked straight from the '90s

Nokia injects a little funk into its latest budget Lumia handsets
Nokia Lumia 630 and 635 have swappable neon covers plucked straight from the 90s

Nokia has announced a pair of budget Windows Phone 8.1 handsets which will land in five different colours, with swappable rear shells.

Apart from colour coordinating them with your raver's wardrobe like you did back in the 90s (our personal pride and joy was our fluorescent orange 5110), both devices will rock a 1.2GHz quad-core Qualcomm Snapdragon processor, which should keep the latest version of Microsoft's mobile OS flowing along smoothly.

While the Lumia 635 supports 4G data, the 630 will stick to 3G and will arrive with an additional SIM slot variant.

Both phones have 4.5in Gorilla Glass 3 LCD displays, although the resolution remains a mystery at this time. They also both feature a secondary 'Sensor Core' which is a low power processor which exists purely to keep track of fitness stats including steps taken, calories burned and distance walked, in a similar fashion to the iPhone 5s' motion co-processor.

512MB of RAM, microSD support, a 5MP camera and 1830mAh battery make up the rest of the specs list, and while they won't get the hearts of a power users racing, both Lumia models are aimed at emerging markets. 

Interestingly, these are the first Lumia handsets to ditch the capacitive navigation buttons in favour of on-screen ones which disappear when watching videos. It’s a style Nokia could adopt with all future handsets, taking a leaf out of the HTC One (M8)’s book.

The Nokia Lumia 630 will hit shelves in May in Asia, Russia, China, India and Europe, from US$160 for the single-sim variant, and US$170 for the dual-SIM model.

The Nokia Lumia 635 will be "widely available, including in the US starting in July, from US$189", though there's no definite confirmation for an EU release at this time.

If you're looking for a Lumia with a lot more oomph under the bonnet however then you'll defiitely want to check out the freshly unveiled Nokia Lumia 930.

READ MORE: Windows Phone 8.1 preview