Performance
Under the hood, the Lumia 635 is powered by a Qualcomm Snapdragon 400 chipset, coupled with a quad-core 1.2 GHz Cortex-A7 CPU and an Adreno 305 GPU. Available in variants of 512MB or 1GB RAM, the device manages standard applications like browsing, social media, and multimedia playback adequately. However, the limited RAM can be a bottleneck for more demanding tasks or multitasking but should accommodate basic usage fairly well.