Confirm the exact device limit, supported operating systems, user or account restrictions, renewal model, activation method, transfer rules, included features, and whether mobile devices count toward the entitlement. For security products, also compare VPN, identity, firewall, password-management, and other plan features because two five-device products can provide very different coverage. Finally, verify whether the advertised five-device entitlement applies for the full subscription term and how you manage devices after activation.