Before the purchase smartphone I search in the market the smartphone wich can fullfilled my requirements. And my requirements is that high configration in all fields like maximum internel memory, dual camera with flash as well as otg supported and sound quality is best .and screen wich can easily handeled. All that things are included in the smartphone j7 . Really I tell you the my exprience wit j7 I purchased it in 1st of january its running well there no probleme in the my samsunge j7.and the most important things is usability my dealy used is that 24 hours online with 4g and I used enternet after every 10 min in the day.thats why I buy this product.i suggest you buy the smartphone j7 and you can do any things with the samsung j7 and the last one is that connectivity speed you can compare it with similler phone and you get the result samsung j7 is the best smartphone.