Lenovo Launched its Mid Ranger Lenovo K4 Note Everyone Expected A Great Smartphone With More Bumped Specs And They Did A Decent Job Comparison To K3 Note.K4Note Comes With Fingerprint Scanner One More GB Ram NFC And More Bigger Battery But Under The Hood Lenovo Dissapointed Me As Well As Many Others As I was Expecting Mediatek Helio X10 A Powerful Soc So Do U Think The Upgrade is Necessary? Well I Guess Compared To K3 Note.K4 Note Will Be Lil Bit Better in Performance So I Don’t think it’s a necessary Upgrade But Still Wait And Watch My Review After Testing The Device.Fingers Crossed