The BLU S1's screen size is 5.2 inches with 720 x 1280 pixels resolution.
There is a MediaTek MT6750 Octa core 1.5 GHz processor (CPU).
The phone runs on the Android 7.0 Nougat operating system (OS).
You can take photos or capture video with the phone's onboard 13+ megapixel camera.
There is also a secondary front facing camera with 5+ megapixels resolution.
Internal memory is 16 GB. An external, MicroSD, MicroSDHC, microSDXC (up to 64 GB) expansion slot is available for increased storage capacity.
The phone is powered by a Lithium Polymer (Li-Pol), 2800 mAh battery. BLU's performance ratings are 1440 minutes.