The differences between field snails and apple snails are different colors, different tail shapes, different screw mouths, different shell hardness, and different shell mouths.

1. Different colors

1. Field snails: Field snails are greenish-brown in color and have black characteristics.

2. Lucky snail: The color of Lucky snail is yellowish, more inclined to tawny.

2. Different shapes of cone tails

1. Field snail: The cone tail of field snail is relatively long and cone-shaped.

2. Lucky snail: The vertebral tail of Lucky snail is relatively flat and very short, similar to a disc shape.

3. Different screw mouths

1. Field snail: The screw mouth of field snail is relatively small.

2. Lucky snail: The screw mouth of Lucky snail is relatively large.

4. Different shell hardnesses

1. Field snail: The shell of field snail is hard.

2. Lucky snail: The shell of Lucky snail is thin and brittle.

5. Different shell openings

1. Field snail: The shell opening of field snails will basically have a black border.

2. Lucky snail: The shell mouth of Lucky snail generally does not have a black frame.