What size of SIM does the ROKiT One use? April 30, 2019 23:16 Updated The phone uses a Standard SIM (SIM is not included). See picture below. Related articles What size of SIM does the ROKiT iO Pro 3D use? Setting up your Launch Control on your ROKiT One / F-One device What size of SIM does the ROKiT iO 3D use? How do I unlock my phone? How can I update the software on my phone? Comments 0 comments Article is closed for comments.