Here are the difference between iRobot 650 and 655 :
iRobot 655 vs 650
images from manufacturer
Battery
They come with different battery.
The iRobot Roomba 655 uses the purple XLife Extended Life Battery while the iRobot 650 uses the Yellow Advanced Power System Ni-MH Battery.
According to iRobot, the Xlife battery doubles the time before you may need to replace your Roomba battery.
Side Brush
The Side Brush on the 655 has a new design that make it easy to remove whereas the 650 comes with the original Side Brush attached by a Phillip’s Head Screwdriver.
Charging Kits
The charging base is different.
The iRobot 655 comes with the Dual Voltage Integrated Home Base while the Roomba 650 comes with a Battery Charger and Home Base (110V).
Cleaning Tools
The 655 comes with 1 flat brush cleaning tool and 1 round brush cleaning tool whereas the 650 comes with only the flat brush cleaning tool.
Extra Accessories
The 655 comes with 1 extra rubber brush, 1 extra bristle brush, and 1 extra side brush. While the 650 does not include these extra brushes.
Price
The retail price of 655 is $349.99 at Costco while the 650 is priced at $399.99 at irobot.com
Color
The 650 is in darker color.
Both of them feature the On-Board Scheduling and include 1 virtual wall.
If you know other difference between the iRobot Roomba 655 and 650, please share below to help others buy the right one.
Thank you! Exactly what I needed to know! Even with the non-member fee of 5%, the 655 from Costco is a much better value. 😀
how is the 655 better for a dog pet owner compared to the 650 ?
How much are virtual walls and how many do you need for a 2 bedroom 2 bath apt that is approx 1360sq feet –
Virtual wall does not help the robot clean multi rooms, it only stops the robot from entering the areas you don’t want it to access.
The robot will clean each room up to 25 minutes.
read more here http://homesupport.irobot.com/app/answers/detail/a_id/7304/related/1/session/L2F2LzEvdGltZS8xNDY5NDk1NjE3L3NpZC9lWVhmV3JXbQ%3D%3D
Great comparison, thank you!