The Tanita, which I bought, is solar powered (or bathroom light powered), requiring no batteries. It’s a bit wide, but that makes for better balance. I don’t know what you mean by inexpensive, but this one was about $69. Some Amazon reviewers had problems with it. All professional reviewers pretty much said that scales that purport to show you body fat numbers are inaccurate, sometimes wildly so.
If you want accuracy, I’d recommend buying one of the balance beam-type scales, as used in doctors’ offices. On Amazon, they’re available starting at about $140. If not, perhaps you could keep a couple of buckets around, with marks to indicate how many gallons of water are in them, so you can calibrate your own scale.
We just threw out a Conair digital. I’d check to see if there are any consumer reviews before buying any product. Amazon has reviews for the one you’re looking at: you might want to check the 1-star comments.
I have a Taylor (lithium) that operates flawlessly, has large numbers, and runs on one of those ubiquitous CR2032 cells for almost forever.
Mine has a half pound gradation. I would prefer tenths. I always weigh twice to get the same number. Your weight shifts a bit as you stand so any scale fluctuates some. Weigh yourself every day under the same conditions and record it. Average the weight for at least three days for a more accurate sense of where you are going.