Idk how people use so much storage on their phones.
Yes, 128gb should be more than enough. Backup photos as you take them to Google photos or (in my case) a self-hosted immich server and delete local copies. Don’t download every video you run across. Stream your music.
You’ll never run out of space. Had a pixel 5 for like 3 years and never used even half it’s storage before switching to the phone 2, and I’m barely using 40gb out of the 256gb available. Have had the phone 2 since launch.
