What are the differences between UTi256G and UTi384G?

Differences between UTi256G and UTi384G are shown as below:

①IR Resolution: UTi256G is with 256×192 resolution, for UTi384G is 384×288.

②FOV: FOV value of UTi256G is 28°x 20°, for UTi384G is 42°x 30°.

③On Screen Analyzer: UTi256G supports to add 3 points/3 lines/3 rectangles/3 circles. UTi384G supports to add 5 points/5 lines/5 rectangles/5 circles.

④Video Recording: UTi256G does not support video recording function, but UTi384G does.