Improvement is the most that you can ask for from a smartphone vendor. Actually, creating the perfect phone is the most you can ask for, but most of us will settle for something that does better than we've seen before and meets our most basic needs in most categories. The Blu Life One X isn't perfect, but it's a heck of a lot better than the Blu Life phones that I reviewed last year. It's an obvious example of Blu raising its standards, but do those standards align with the changing needs of people who may purchase this Android phone?
Supposedly, this phone has a speaker also on the backside though the bass and equalizer tones might not be as efficient as others cell phones on the markets.
Have a look at the specs below:
1.5 GHz quad-core processor (Mediatek)
- Power VR Series 554 GPU
- 2GB RAM, 16/32GB internal storage
- 5-inch IPS display (1920x1080, 440ppi)
- 13-megapixel camera with Bright+ and LED Flash
- 5-megapixel front-facing camera
- 2,000 mAh battery
- Dual SIM 4G HSPA+ 42 (850/1900 or 850/2100), Bluetooth 4.0, micro USB 2.0
With the exception of the camera megapixal rating, the storage rating, the bluetooth, and possibly the IPS display, much of the rest of the phone's specs are kind of lackluster IMO. You'd expect a modern phone to have at least around 3000mAh and have at minimum, 2.0 to 2.5 Ghz.

This is also good as most modern phones like the LG G2, for example have this feature by bringing it to your ear or other swiping features:
The strongest selling point on the software side is the use of gestures. Using the front proximity sensor, the Life One X can unlock a phone by swiping right on the lock screen, answer a phone by bringing it to your ear, or take a photo by swiping across the screen
Here's the link:
Blu Life One X Review: the brightest Blu phone yet review