The power button on both the Razr Ultra and Z Flip 8 doubles as a fingerprint sensor. However, the Z Flip 8 has a smaller 4,300mAh battery, while the Razr Ultra comes with a larger 5,000mAh cell. Neither the Razr Ultra nor the Z Flip 8 has a dedicated telephoto camera, but the Z Flip 8 supports up to 10x digital zoom, while the Razr Ultra has Super Zoom up to 30x. Similar to the Z Flip 8, the Razr Ultra lets you experiment with AI-generated images in Image Studio. Winner: Z Flip 8Choosing the Right Folding Phone For YouThe Z Flip 8 hasn't yet been through our testing, so a final verdict will have to wait.