Samsung is reportedly working on "Lite" versions of the Galaxy S10 and Note 10. According to SamMobile, the Galaxy Note 10 Lite will have the model number SM-N770F, while the Galaxy S10 Lite will be the SM-G770F. These devices are expected to be more affordable versions of Samsung's current flagships.
Most of the spec details for the Galaxy Note 10 Lite are unknown right now, but according to DroidShout, the Galaxy S10 Lite will have similar specs to the Galaxy A91. Those are said to include a Snapdragon 855 processor, 8GB of RAM, 128GB of storage, a microSD card slot, 4500mAh battery with 45W fast charging, and a 6.7-inch Full HD+ Infinity U display. Also said to be included with the Galaxy A91 is a 48MP main camera with OIS, a 12MP ultra-wide cam, a 5MP depth camera, and a 32MP front-facing snapper.
Most of those specs would make the Galaxy S10 Lite better than the Galaxy S10e. SamMobile says that the camera quality on mid-range devices like the Galaxy A series doesn't match the quality on the Galaxy S10 phones, and so if Samsung does just use the Galaxy A91 specs on the Galaxy S10 Lite, its cameras may not be as good as those on the Galaxy S10e.
With the Galaxy Note 10 Lite and Galaxy S10 Lite, Samsung may be aiming to leverage its well-know Galaxy Note and Galaxy S brand names to help it sell more affordable devices and take the fight to the iPhone 11, which comes in a bit cheaper than the Galaxy S10e. There's no word on when these Lite phones might launch or how much they'll cost when they do, though, so for now we'll just have to wait for more info to come out. Stay tuned.