Tecno made the announced through their Twitter account.

— Tecno Mobile Nigeria (@TecnoMobileNG) August 5, 2014 The Phantom Z is just 7.8mm thin with a 5.2 full HD AMOLED display. It also features 2 GB of RAM and 16 GB ROM with a memory expandable to 32GB. The Phantom Z also packs a (hold on to your hats) MediaTek Octacore processor – Yes that’s 8 cores, 2 cores more than the R7 — Tecno’s previous flagship device all with a gigantic 3030 mAh battery. The device runs the latest Android version, Android KitKat with (Over-The-Air) update support. The device is expected to retail for a price of about N50,000 to N60,000 in Nigeria. The device isn’t yet in Ghana, Uganda and other African markets the vendor has strong presence. Image: Tecno Nigeria