We should/Let's

[wowenglish1]

I wonder if there is subtle difference "1" and "2".
1. We should get together sometime.
2. Let's get together sometime.

[5jj]

#1 may be vaguer, #2 may be followed by a suggested time.

However, so much depends on the people concerned, their knowledge of each other, and the way in which the words are said. There may be no difference at all.

[Raymott]

I wonder if there is subtle difference "1" and "2".
1. We should get together sometime.
2. Let's get together sometime.

Keep in mind the literal difference that might be important.
1. We should visit Uncle George in the nursing home. (A statement of obligation)
2. Let's visit Uncle George in the nursing home. (A suggestion)