Oral-B SmartSeries Electric Toothbrushes: Pro 6000 $70, Pro 8000 $65

Walmart has many Oral-B / Braun products on sale with instant rebate.
I am highlighting these two models because they have lithium ion batteries (And not NiMH).
Pro 6000 $90 – $20 instant rebate:
https://www.walmart.com/ip/Oral-B…/486643832
Pro 8000 $95 – $30 instant rebate:
https://www.walmart.com/ip/Oral-B-8000-Electronic-Toothbrush-Powered-by-Braun-Orchid-Purple/968114298?
https://wm6.walmart.com/BraunOral…n=21887702