Many people buy a new smartphone and soon start complaining that it feels slow, games lag, or the device hangs during multitasking. But have you ever wondered why this happens even with a new phone?

Both phones feature a dual camera system on the rear. The standard X5b utilizes a 13MP primary sensor, while the X5b Plus boasts a more impressive 50MP main shooter with an f/1.8 aperture. Both models ...