Except for the very basic model in J series for example J1, J2 ( not J5 and above) and other feature phones, all other phones support either version of knox.
Thanks for being with Samsung and sharing your query. We would like to inform you that the Samsung Knox platform is built into Samsung smartphones, tablets, and wearable at the manufacturing stage, so you have it the moment you unpack your device. The Knox platform consists of overlapping defense and security mechanisms that protect against intrusion, malware, and more malicious threats. Be sure to hit ♡ when you find an answer that works for you. For Further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/
