https://www.cnet.com/news/galaxy-s10-plus-ongoing-review-day-2-whats-good-bad-in-between/

I've already taken a couple dozen photos and video clips. I've explored the menus within the Settings menus and discovered a ton of features and featurettes that I'll share soon. (Getting used to these things take time.) I've also charged my dying Galaxy S9 Plus from last year via the charging pad on the back of the Galaxy S10 Plus while switching my credentials over to the new device (it works!), and whipped up a new AR Emoji of myself and two colleagues using Samsung's updated engine (it's a lot better, but still needs work).

A solid phone review takes about a week to really test out the hardware and software specs, especially the camera and battery life. For example, the Galaxy S10 Plus' 4,100-mAh battery ran for over 21 hours on its first looping video drain test in airplane mode, so that already requires days of testing. Quirks also tend to make their way to the surface over time.