For 6+ to 11 years old children
As stated on the box, the Junior Smart has been designed with children aged 6+ years and over in mind.
Typically, children need assistance from parents when brushing their teeth up until the age of about 8 years old. But, come 6 years old, routine and probably a bit of parental nagging has kicked in and they are doing a pretty good job themselves.
The Junior Smart offers a product that is still child friendly, but has been refined to be more mature and more ‘cool’ than the bright coloured handles typically applied to younger children’s toothbrushes.
Believe it or not the only thing, from what I can tell, that makes this toothbrush geared to Juniors is the design on the brush handle. It even has the same sized brush head you would find on an adults Oral-B toothbrush.
Children’s mouths at this age are getting larger as they grow and can generally accommodate a larger brush head, but the round head is smaller than most toothbrush heads.
To put it bluntly, the Junior Smart is a repackaged Oral-B Smart 4 4000, which is marketed for adults. The same can be said of the Oral-B Teen. 3 toothbrushes that are technically the same, just small design and box contents differences set them apart.
Junior Smart is really targeting the slightly older children who still like interactive engagement but are more capable and disciplined and want less parental interaction.
If Bluetooth connectivity really is a desire, then the Junior Smart sort of stands on its own, with a more funky brush handle design.
Variants of this brush

Apart from the Junior Smart reviewed above, there are also some variant of the product, with the same look for packaging, and same brush handle, but with slightly different features
1) Oral-B Junior Minnie Mouse
Stylistically this looks very similar to the Junior Smart, but the handle features a Stormtrooper from Star Wars, the brush has 1 less cleaning mode and no Bluetooth connectivity.
2) Oral-B Junior Star Wars
Stylistically this looks very similar to the Junior Smart, but the handle features a Stormtrooper from Star Wars, the brush has 1 less cleaning mode and no Bluetooth connectivity.
3) Oral-B Pro 4000 Star Wars – China Edition
This looks exactly the same as the UK Edition of Oral-B Junior Star Wars, but the brush handle has 4 cleaning modes and no Bluetooth connectivity.
Replacement Brush heads
This Oral-B electric toothbrush is bundled with the sensitive brush head, however, you can use any of the other compatible replacement brush head from Oral-B