Performance and Software
Under the hood, the Lumia 640 is driven by a Qualcomm Snapdragon 400 chipset, featuring a quad-core 1.2 GHz Cortex-A7 processor and Adreno 305 GPU. While this hardware setup might seem underpowered by today's standards, it provides smooth performance for essential smartphone tasks and moderate multitasking. Originally operating on Microsoft Windows Phone 8.1, the device is upgradable to Windows 10, extending its usability and access to more features and security updates. The 1GB RAM combined with 8GB internal storage, expandable via a microSDXC dedicated slot, accommodates basic app usage and media storage but may struggle with very demanding applications.
- ⬤ Microsoft Lumia 640 Dual SIM Design and Build
- ⬤ Microsoft Lumia 640 Dual SIM Display
- ⬤ Microsoft Lumia 640 Dual SIM Performance and Software
- ⬤ Microsoft Lumia 640 Dual SIM Camera