Yes, you can easily connect this projector to a Lenovo ThinkPad laptop to show PowerPoint presentations. Use an HDMI cable - the projector has an HDMI port, and most ThinkPads do too (with a USB-C to HDMI adapter if necessary). Alternatively, you can do it wirelessly via Miracast if both devices are in the same WLAN.
Yes, you can connect the projector to your iPhone. The projector supports AirPlay, so you can connect your iPhone to the projector wirelessly via screen mirroring. To do this, both devices must be in the same Wi-Fi network and you can start the connection via your iPhone's Control Centre by selecting the "Screen Mirroring" option and selecting the projector. Alternatively, a connection via cable is also possible if you use the appropriate adapter.
The projector does not operate independently without being plugged into a 220 V mains socket. It requires an external power supply to operate, as it comes with a power cable and has no built-in battery.
Yes, Netflix is natively integrated thanks to the projector's Android 11.0 system, allowing direct access to Netflix and other streaming services without any additional equipment.
I'm not completely certain about this answer. The information I have does not fully address whether this projector is compatible with Apple devices. Typically, projectors with Android support and wireless connectivity options like Miracast or AirPlay can be compatible with Apple devices, but specific compatibility details would need to be confirmed by the manufacturer or through official documentation.