For differences between the Apex Flex and the FlexSecure, please read
- flexsecure-applets/docs/2-hardware.md at master · DangerousThings/flexsecure-applets · GitHub
- flexSecure product release - #18 by StarGate01
The FlexSecure is intended for developers and technical users, while the Apex Flex is a easy-to-use product for the general population.