The KaiOS-powered devices usually support the Readout mode. You can find it it under:
Settings -> Device -> Accessibility -> Readout - To enable the Readout mode, please set it to ON.
Please note that we are working with device manufacturers (OEMs) and in some cases, they will determine if a certain feature is implemented or changed. We recommend reaching out to your respective device manufacturer for more specific information about the Readout mode if you cannot find it under Settings.