None of them takes good pictures or is a good pair of binoculars. The Canon PowerShot Zoom is compact, relatively inexpensive and usable for documentation purposes, but again optically relatively mediocre. I have some samples on my review:
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I had the Sony DEV-3 digital binoculars, they were garbage. The samples from the Swarovski dG are not that impressive either (I haven't used one).
Your best bet is to get a small mirrorless camera and a compact telephoto lens. My current small-and-light camera for when I don't want to pull out the Nikon heavy artillery is the Fuji X-T4 with their 70-300mm lens, which is a 10x equivalent.
You could also try digiscoping with a monocular and a phone, but I've always found that combo quite awkward.