Canon - PowerShot ELPH 190 20.0-Megapixel Digital Camera - Black

Yes, you will need to buy a memory card; it does not come with one. It takes standard size SDHC or SDXC cards. I believe a 32 GB card can hold maybe 4,000 high quality pics or a couple hours of video. You can get a high speed (80 or 90+ MB/s) one quite cheaply these days. Personally I prefer to have several smaller cards rather than one big one for photos so I have different events on different cards. It's easier for me to manage than having 15,000 unrelated pics on one big card. For video I prefer the bigger and faster cards so I don't have to worry about having to switch cards in the middle of filming a longer event.

Not long at all..one day it didn't make it through the day..

Yes, it has 10X optical and 4X digital zoom. The zoom control is a tiny knob on the ring around the button that you press to take a picture. It is smaller and harder to control than the toggle switch type that I am used to on the older Canons. It takes some practice getting used to and it is so sensitive that it is easy to over zoom and then under zoom when you try to back it off a bit.

We were taking a lot of pictures on our trip, and the battery lasted almost all day.

You can send pictures to an iPhone by downloading the Canon Camera Connect App. You can also post it to social media.