Hello Elianatucuma
Thank you for your question. The only significant difference is the carpet booster, which the Roomba 980 has. However, both models are now outdated and have fewer functions than would be possible today. We would therefore like to recommend the Roomba i7 vacuum robot to you at this point: iRobot Roomba i7

Unlike the Roomba 960 or 980 you mentioned, the Roomba i7 has the following features:
- Cleans with 10x more suction power
- Best suited for entire floors and large areas
- Creates up to 10 maps of your home e.g. one map per floor
- Clean or schedule room by room via the iRobot HOME App
- Favour cleaning patterns, set blocking and cleaning zones and create schedules via the iRobot HOME app

If you have any questions or queries, please feel free to contact us directly at any time. You can reach us at +41 62 746 06 74 or by email at service@irobotics.ch.

Best regards,
Your iRobot Team