The digital girlfriend is the single worst thing about the movie. You could delete it, rework some scenes around it to cover some of the same territory, and lose nothing but running time, which would be a blessing.
It is to this movie what the v/o was to the theatrical cut of the original: hammy and unnecessary.
When K gets in his apartment and it teases us about whether there's a real person or not, I thought it was good, a bit of comic relief. Her proposing a book, him saying she hates, then her saying ok no I don't like it, good again. He's a replicant, he gives no fuck, that made sense to me. But I seriously thought when he told her he had a present and opened the box, he had something to terminate her, like "Here is a present for you. I got a new model. Bye.". Would have fit with his character; he's a fake person, and gives no fuck about the AI.
Would have made his eventual discovery of empathy more gradual to make him not care about Siri and straight up delete her.
Thinking about trailers and the movie's initial box office numbers, I wonder what was the friggin' point of hiding K's Replicant nature, when it's revealed pretty much immediately. What if the trailers had sold the movie from a more personal POV from K, showing some of his struggles of fitting into human society, maybe people would have found that more intriguing. Anyway, it's kind of ridiculous to hide something like this while simultaneously showing nearly every set-piece and location in the movie.
I guess it's as good as any explanation. For me, just like the Replicants themselves, it's technology that's beyond our current understanding. Maybe people in this universe have learned how to manipulate light particles somehow.
Very little covers his struggle to fit in humanity in the movie anyway, it doesn't really go that route. You have a bit of it when the cops yell at him or when he goes home, which again is great like most of the start of the movie. Then, nope, that's essentially left aside.
