... BUT, as far as I can tell, there never was a gray scheduler model that looked like one on bottom right in my prior post. That's what made me wondering. Or was there?
I'm really puzzled too. I got 2 gray/gray ones, marked Rhoomba Discovery. They came in differently shaped boxes, but both said Scheduler, and had a picture of the Blue one. Both have the 4296XXX Serial No. They have the 3 buttons nestled close together like the picture on the lower right of your photo.
One is labeled 4225, which I think is a return from Costco, and it has a swivel front wheel, and a wall mount.
The other one is labeled 4210, has a fixed front wheel, and no wall mount.
Neither one had an extra brush pack, nor the cleaning tool.
The 3rd one is white, labeled 4210, has 4 round buttons spaced apart, has a fixed wheel, and Serial No.4299. I have no idea what that serial number means!
And, what I really, really, wanted was the BLUE ones. I hate the gray ones. The white one is OK, I guess, but I don't think it's a scheduler at all. I suppose I could pay $20 each for a skin to cover it. The coral reef skin would match my tropical theme. And the reason the color matters.....well, because if they are scheduled to run, you can't hide them away in a closet, so they have to fit the decor of the room!!!