Quite naturally, the difference between two vacuums that come from the famous Roomba brand, and belong to the same 600 series is very slight. Meanwhile, a bit more advanced 665 model stands out by dual mode Virtual Wall technology, being a bit more intelligent and better in navigation. It comes with a larger dustbin, cleaning a larger floor area before emptying it. Comparing iRobot Roomba 650 vs 665, I would like to highlight both models benefits, by mentioning that they are suitable for all floor types, including thick carpets, adjusting to them automatically. Meanwhile, the basic, 650 model comes with a better display that is simple and intuitive to control.
Promoted as a low-profile device, the Roomba 665 model is definitely less compact than the basic model. It is a bit more lightweight, but the difference in weight is very slight. The design is evidently similar; the distinction is only in colors. As for me, the black one looks more elegant and minimalistic.
The budget, Roomba 650 model is more affordable. Additionally, it’s incredibly popular and highly-rated. I guess that paralleling Roomba 665 vs Roomba 650, most customers opt for the basic model, because it’s reliable and feature-rich, and the difference in technologies is very slight.
The basic iRobot model is simple and reliable. It is suitable for all floor surface types, eliminating dust and dirt, pet hair and cat litter perfectly well due to multi-brush system and self-adjusting technology. The vacuum is compact in comparison with more advanced iRobot models. It is simple, easy to control and access. It’s only not perfect in navigation and comes with the brushes that require some cleaning.
Putting in comparison Roomba 665 vs 650, I would say that the advanced model has all the same beneficial features, removing dust and dirt from all types of floor surfaces pretty well. It differs only by dual-mode Virtual Wall technology, detecting and avoiding ledges and stairs. On the contrary, the model is a bit bulkier, and it is less intuitive in operation. Additionally, it is more expensive, being still loved and highly rated by the users.