In the Professional Care 600 and the TriZone it seems to be to identical models. At least agree all the data and also the manual refers to both models. The only differences are my Erarchtens by the color and the brush head attached. I personally like the head of TriZone not really, I like the round, rotating heads prefer. But that is probably a matter of personal taste. And above all, one can use any Oral B head, so it makes VLT. sense to get even to this model, the significantly cheaper than the Professional Care 600 is yes to pick up and then invest the money saved in just a few good brush heads.
If you have no electric toothbrush is probably usually faced with the question which model it will be, or how much money you can make easy and would like to make. If you look at the drug store in the toothbrushes, one finds there some already models for 15.-, then there are models like this one and yet which are the loose twice as expensive as this model.
Personally, I would always recommend a slightly more expensive model. Although ultimately all do the same thing, they bring rotate the brushes and make your teeth clean, but there are then but the little things make the (opt) difference. So for me the most important thing in such an e-toothbrush besides good cleaning results, a contact pressure control. When brushing teeth, most people press the toothbrush usually on to dol. Namely, whether normal or electrically. With more pressure to clean better you might think. But this one hurts more the gum line, which in turn also the tooth is not good, therefore it is better not to use too much pressure.
A toothbrush with Pressure sensor becomes noticeable when you press down so doll. This model manifests itself in an altered Moto noise. Once changes significantly, this should reduce the pressure. About this feature do not have cheaper models, so I would advise against this. More expensive models like the Triumph 5500 go here even a step further and make my noise, noticeable by a reduced engine power and by a red warning signal. The red warning light is in my opinion, optimal, but then you have to immediately grab a little deeper into their pockets.
In addition, the devices differ in the battery runtime of one another. This equipment complies with 2x daily by two minutes brushing your teeth for about one week. Since I usually brush slightly longer than the two minutes it is not quite a week with me. The more expensive units hold by up to 10 days. A battery level indicator can be found, incidentally, even in high end models.
Those are in my view the main differences that you really realize in practice. The toothbrushes rotate depending on the model with 8,000 / 20,000 or 40,000 rpm. I do not know where here is the limit that you also notice a difference wirlich. If there should be models in 5 years which rotate at 100,000 rpm, they are probably not cleaned three times as well as today's models.
The feel is still one thing that however for the cleaning performance does not matter. The Care 600 is definitely good in the hand and is well suited, I personally like the feel of the Triumph models more even for small hands. But that might be matter of habit.
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Conclusion
All in all, the 600 TriZone a good toothbrush that lets you make sure nothing wrong. I would always prefer a low-cost entry model. It is a pity that included only a brush head. The brush head I personally do not like the way, but one can use any brush head available from Oral B toothbrush. The cleaning results are great, the main features that must have an e-toothbrush in my opinion (Pressure sensor, timer) are available. Therefore you do with this toothbrush definitely nothing wrong and that investing more money is well spent. If you have more money left over, then you should also take a look at the Triumph models. But with this brush you do definitely nothing wrong.