Tikom G8000 Max is the top pick among robot vacuums under $400, rated 4.4 stars across 4,844 customer reviews.
TikomG8000 Max
4.4(4,844)15% OFF
$129.99$109.99
Eufy11S MAX
4.3(59,598)$279.99
iRobotRoomba 105
4.2(31,641)50% OFF$299.99$149.00
iRobotRoomba 105 Combo
4.2(26,594)44% OFF$319.99$179.00
iRobotRoomba 105X
4.2(26,594)$239.99
iRobotRoomba 205
4.2(11,576)60% OFF$449.99$179.99
SharkNavigator RV2120AE
4.2(5,675)38% OFF$449.99$279.99
TikomL8000 Plus
4.5(587)16% OFF$249.99$208.99
DreameD20 Air Plus
4.2(3,685)23% OFF$349.99$269.99
DreameD20 Pro Plus
4.2(3,685)20% OFF$399.99$319.96- Deals by email
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RoborockQrevo Pro
4.3(1,028)$329.99
iRobotRoomba 105X Combo
4.1(13,308)11% OFF$328.81$293.66
iRobotRoomba 415X
4.1(12,015)50% OFF$799.99$398.99
SharkAI Ultra AV2501AE
4.0(41,687)$299.99
SharkMatrix Plus UR2650WS
4.0(36,550)$289.00
SharkNavigator AV2110S
4.0(36,550)$369.00
DreameL10s Pro Ultra Heat
4.1(1,862)$398.99
RoborockQ10 S5+
4.0(20,583)49% OFF$549.99$279.98
RoborockQ7 L5
4.0(16,629)$199.99
RoborockQ7 M5+
4.0(16,629)$359.99
RoborockQ7 M5
4.0(5,620)$229.99
RoborockQrevo Plus
4.0(5,620)$389.99
TP-LinkTapo RV20 Max Plus
4.1(809)23% OFF$239.99$185.98
TP-LinkTapo RV30 Max Plus
4.0(1,147)$229.99
NarwalFreo X Plus
4.0(587)$324.71
EcovacsDEEBOT T50 PRO Omni
4.2(287)$399.99
iRobotRoomba Combo Essential Robot
3.6(2,369)$169.99
SwitchBotK11+
4.0(314)17% OFF$239.99$199.49
EufyL60 with Self-Empty Station
3.4(3,014)$399.99
iRobotRoomba Vac Essential Robot
3.3(3,077)$239.95
iRobotRoomba 104
3.4(884)$249.99
iRobotRoomba Combo i5 Robot Vacuum and Mop
3.3(1,903)12% OFF$255.99$224.99
TP-LinkTapo RV30 Max
4.1(140)26% OFF$219.99$161.99
TP-LinkTapo RV20 Max
4.0(132)$184.45
TP-LinkTapo RV50 Pro Omni
4.4(58)43% OFF$699.99$399.99
SwitchBotS20
3.3(74)23% OFF$399.99$309.99
EcovacsDEEBOT N30 PRO Omni
3.5(37)$314.00
EcovacsDEEBOT T50 Omni
3.7(11)23% OFF$389.99$299.00
SwitchBotK11+ Pro
4.5(6)33% OFF$399.99$269.99
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Frequently asked questions
What are the best robot vacuums under $400?
Tikom G8000 Max, Eufy 11S MAX and iRobot Roomba 105 lead our ranking of robot vacuums under $400, ordered by customer rating weighted by how many reviews back it. The full list compares 39 products in this price range.
How many robot vacuums cost less than $400?
This page tracks 39 robot vacuums under $400 from 10 brands, with prices starting at $109.99.
Are these prices up to date?
Prices come from each product's Amazon listing and are re-checked continuously, so every card shows the latest price we have. A product whose price rises above $400 drops off this list on the next update.
Looking for more than $400?
See all the robot vacuums in the catalog, compared side by side on specs, price and rating.