Microsoft Lumia 650 flaunts a 5-inch 720p touchscreen, an 8 MP rear camera with LED flash, a 5 MP selfie shooter, 1GB of RAM, and 8GB of expandable storage.Lumia 650 powered by Qualcomm’s Snapdragon 212 chipset, which has a 1.3 GHz quad-core Cortex-A7 CPU and Adreno 304 GPU.
I believe thats either the proximity or ambient light sensor and not a front facing speaker. The same is noticeable on my 640 XL. If it does indeed have a metal frame, then I would assume the speaker grilles would be at the bottom of the device beside the USB Type-C port.