After the Vivofit Jr 2 went through the wash and did not survive, I was having a look to see how much a replacement would be. This isn't an amazing deal, but good for those wanting one in time for school starting. Not having to re-charge, the smaller band size, and the kid-focused features make these a popular choice for kids around ages 4-10yo.
Amazon looks to have dropped their prices to match, they also have the Little Mermaid one cheaper too (ships from US).
https://www.amazon.com.au/Garmin-Vivofit-Fitness-Activity-Tr…
Stay away from these, way too dark to see the screen in door.