Coolpad note 5 smart phone is very nice phone . and this phone 2G, 3G, 4G supported and this phone both slot are 4G . Coolpad note 5 smart phone customer service is good . and thay gives her best performence and custome care number if thair any problem 1800-1027-159 . in Coolpad note 3 have new taknologys . Coolpad have a reasonable price to customer . and this is not west of money . so my way Coolpad note 5 is very good phone at this time.