The price difference between these two smartphones is approximately TZS 400,000, with the iPhone X being more expensive than the Tecno Phantom X. The Tecno Phantom X, with 8 GB of RAM and 256 GB of storage, starts at approximately TZS 1,100,000. In comparison, the iPhone X, featuring 3 GB of RAM and 64 or 256 GB of storage, is currently available starting at approximately TZS 1,500,000.