Just like the Galaxy J5, the Samsung Galaxy J7 also has a 5MP front camera with LED flash but accompanied a bigger 5.5-inch Super AMOLED display. It also has a faster processor, the octa core Exynos 7580, but the same amount of RAM which is the unusual 1.5GB.
Itching on the left foot, however, means that the end of journey may not be pleasant. If the itching is on the sole of the left foot, it means that losses are experienced on the journey. Itching ankles foreshadow a marriage or an imminent increase in wealth. Itchy shins equal an unpleasant surprise. Itching on the left knee is a predictor for a journey full of bad luck.
Perhaps you have a fungal infection. Chronic itchy feet from an underlying tinea pedis (also known as athlete's foot fungus) is extremely common. It is more common in the summer due to increasingly sweaty feet. Fungus loves sweaty feet! Take a look at the skin on the bottom of your feet and in between your toes.