P4 flew away at weekend. Left with controller, 2 batteries, triple charger, carry case etc. Is most viable replacement P4 or P4pro? Like the look of the P4pro but not sure what is compatible with my remaining kit.

The P4 controller is not compatible with the P4P. I would suggest buying a refurbished P4.

Sorry for your loss. Is it for sure gone (ie do you know it was destroyed or unrecoverable?)

If not, don't give up hope! They return to the nest sometimes!

Sorry to know that mate

Hi there, thank you for reaching out and we're sorry to hear for the loss. About your question, unfortunately. The Phantom 4 Pro remote controller can be used with the Phantom 4 while the Phantom 4 remote controller cannot be used with the Phantom 4 Pro. Meaning it will be not compatible, however, you can use the battery. Thank you for your support.