According to EverythingApplePro's review of the final beta version [1] it is enabled in 11.3 (haven't checked that yet for myself, my device is still updating).

According to EverythingApplePro's review of the final beta version [1] it is enabled in 11.3 (haven't checked that yet for myself, my device is still updating). Edit: Unfortunately it seems that while it was present in the betas, they've removed it from the final build [2]. Pity. [1] https://youtu.be/h2_zIoBvCRI?t=3m45s https://youtu.be/h2_zIoBvCRI?t=3m45s [2] https://forums.macrumors.com/threads/apple-releases-ios-11-3-with-battery-health-tool-arkit-1-5-business-chat-new-animoji-and-more.2112428/page-6 https://forums.macrumors.com/threads/apple-releases-ios-11-3...