iRobot i7 vs i8: Which Robot Vacuum Wins in 2024?
iRobot i7 and iRobot i8 are two premium robot vacuums that look nearly identical yet differ in battery size, suction boost, and bundled accessories.
People mix them up because retailers bundle the i8 exclusively at Costco and Amazon Renewed, giving the illusion it’s a newer model; in reality, it’s an i7 with a larger battery and extra virtual wall.
Key Differences
The i8 ships with a 20 % larger lithium-ion battery (3300 mAh vs 2710 mAh) and a second virtual wall barrier. Otherwise, both share the same 10× power-lifting suction, smart-mapping iAdapt 3.0, and self-emptying Clean Base compatibility.
Which One Should You Choose?
Pick the i7 if you want proven performance at a lower price. Choose the i8 only when Costco bundles it cheaper or you need the extra 20 % runtime for large, open-plan homes.
Can the i7 battery be swapped for the i8 version?
Yes, the battery connector is identical; purchasing the i8 battery as a spare gives the i7 the same 20 % boost.
Do both models support the same replacement bags?
Yes, both use the identical AllergenLock disposal bags for the Clean Base, so stocking up is hassle-free.