Amazon has the iRobot Roomba i6+ for $599.99 as a Daily Deal instead of $799.99. It is very similar to the i7+, but specific to Amazon and $200 cheaper, for now. From what I can figure out, the only difference is you do not get an extra filter and brush.
I posted a similar Prime Day deal:
- UPGRADE TO A SMARTER CLEAN – The i6+ introduces an exclusive upgrade to imprint Smart Mapping so that your robot can learn your home to unleash powerful cleaning when, where, and how you want to attack messes in the moment.
- CLEANS UP AFTER YOU, AND ITSELF – Forget about vacuuming for months at a time with the CLEAN BASE Automatic Dirt Disposal that allows the i6+ to empty itself for up to 60 days. AllergenLock Bags capture and trap 99% of pollen and mold.
- POWERFUL PERFORMANCE & POWERFUL PICK-UP – Pulls in stubborn dirt & messes with a Premium 3-Stage Cleaning System & 10X the Power-Lifting Suction. Control how you clean with the iRobot HOME app or your voice assistant
- GUIDED BY SERIOUS SMARTS – Intelligently maps & cleans an entire level of your home. Patented iAdapt technology with vSLAM navigation actively captures thousands of precise measurements each millisecond to optimize coverage.
- LEARNS YOUR LIFE LISTENS TO YOUR VOICE – Learns your cleaning habits to offer up personalized schedules, while Google Assistant & Alexa allow you to start cleaning with just the sound of your voice.
- IDEAL FOR HOMES WITH PETS – Unique Dual Multi-Surface Rubber Brushes don’t get tangled with pet hair. Brushes adjust & flex to stay in constant contact with carpets & hard floors. High-Efficiency Filter traps 99% of cat & dog allergens.
- THE DREAM TEAM OF CLEAN – With Imprint Link Technology, the Roomba i6+ robot vacuum & Braava jet m6 robot mop team up to vacuum then mop automatically in perfect sequence.
I bought this last time & I can clean specific rooms.