Solo Announced the Aspire M and its exclusive to Airtel. Solo was formed in 2012 by a Nigerian led group of highly experienced telecommunication professionals. Solo is solely commited to bringing an unusual blend of global sector expertise to the African market. The specs sheet are as follows:

5-Inch Display
1GB Ram and 8GB ROM (Internal Memory)
Quad Core MTK6580(MediaTek)
5MP Back Camera, 2MP front Camera
1800mAh Battery
Android v5.1 Lollipop Operating System(OS)

To get this device, Airtel says you'll need a valid proof of ID, proof of address and BVN Number. While the above isn't the best we've seen in a smartphone, we can't but say it is a fair deal. This is because Airtel is basically giving you this device for free, Yes! for free. you only need to pay N4,150 x 11 months after the initial payment of N4,150 (Which makes you eligible to the get the device), as this will cover Airtime, Data and SMS.

Sadly, the offer is only available to pre-qualified customers only, as Airtel will send qualified customers an sms to that effect. We hope Airtel extends this criteria to all its customers and not just select ones. we'd be sure to keep you in the know if this happens.

Source: http://www.africa.airtel.com/wps/wcm/connect/AfricaRevamp/Nigeria/Home/Personal/Devices/SmartPhones/solo-aspire