I remember going to Mobile Monday in Tokyo in 2003 or 2005. There were so many companies pitching new QR-type codes.
I wanted a Panasonic and NEC flipphone soo bad, but they weren’t available nor compatible. I did buy one though :)
I remember using opera to save on data indeed.
Funny story. Had an uber rich client who's eyes lit up when I told her the phone could take video. She paid full price for it and said she was going to Vegas that weekend and gave me that Cheshire Cat smile and a wink.
Totally forgot about her and the exchange. She brought the phone back a few weeks later and said the keypad was unbearable and wanted to exchanged it for something else. My boss threw it back in the box; but told me to reset it so he could resell as new. There were a bunch of raunchy photos with her and some other guy who wasn't her husband on a private plane. She also forgot to delete the two short sex videos she had taken. When I laughingly showed my boss, he immediately wanted me to take them off and send them to him.
That was 2003 and I suddenly realized that having the ability to take pictures and video with a phone was going to be a very bad thing.
3650's camera was 640x480 and had a noticeable delay after taking a photo. It had acceptable shutter speed but if the subject was moving, it would be blurry. 6600 was a lot better. I think it might have been slightly higher resolution as well. 3650's videos were really low frame rate and barely acceptable. 6600 had better video but still not great. At least usable at that time.
I really hated 3650's keypad. Siemens SX1 also was memorable with its weird keypad. [0]
[0] - https://sm.pcmag.com/pcmag_uk/review/s/siemens-sx/siemens-sx...