Galaxy Z Flip 3 spec sheet & official marketing material leaked
The photos show the bigger 1.9-inches cover display more clearly and also the camera specs. You can use the phone even as a tripod.
Thanks to win future for full specs list
The Galaxy Z Flip 3 will offer two screens a primary 6.7 inch FHD+ AMOLED panel with 120Hz refresh rate support and a smaller 1.9-inch (512 x 260) secondary cover display. The back will be protected by Corning Gorilla Glass Victus.
Other specs include, Qualcomm Snapdragon 888 chipset along with 8GB of RAM and 128/256GB of storage. The phone will have 3,300mAh battery with supports for wireless charging and fast wired charging up to 25watt.https://youtube.com/c/XTechJoinTheAvid

As for the camera,the Galaxy Z Flip 3 will have of one 12MP primary sensor and a 12MP ultra-wide-angle lens & a 10MP selfie sensor. 8K video recording is possible, kinda, Samsung will use AI to upscale a 4K video to 8K.
Other Galaxy Z Flip 3 features include 5G, Bluetooth 5.0, and NFC. Interestingly enough, no Wi-Fi 6. It will come with IPX8 rating as well.