Isocell HP5 - 1/1.54 = 0.64%
That is smaller then 1/1.3 in S21U and Fold 7.
Another year, another cameraless foldable wich costs more than Vivo/Oppo Ultras.
Techno Phantom for $1000 make so much mire sense.
The Motorola Razr, who has thought, seems to be the first foldable with proper sensor:
Sony Lytia 828 - 1/1.28-inch = 0.78%