Dreame D30 Ultra vs iRobot Roomba Plus 515 Combo Robot + AutoWash Dock

Updated September 2026

Data from Amazon and official Dreame and iRobot sites.

2026 verdict

25000Pa and a 3-year warranty decide it: the Dreame D30 Ultra is the robot vacuum that wins against the iRobot Roomba Plus 515 Combo Robot + AutoWash Dock, adding Home Assistant and a lower price on top of that extra suction.

Winner

Dreame D30 Ultra

$449.99$539.9917% OFF

Buy on Amazon USACheck price

The 515 still runs longer, at 295 minutes versus 230, and it is the one with 5 GHz Wi-Fi. Both map with LiDAR and use self-emptying docks that wash, dry, and lift mops. Choose the Dreame D30 Ultra for pickup strength and the longer warranty; choose the iRobot Roomba Plus 515 Combo Robot + AutoWash Dock when a 295-minute charge and 5 GHz Wi-Fi matter more than 25000Pa.

Winner

Dreame

Dreame D30 Ultra

17% OFF

$449.99

$539.99

Buy on Amazon USACheck price

iRobot

iRobot Roomba Plus 515 Combo Robot + AutoWash Dock

14% OFF

$599.99

$699.99

Buy on Amazon USACheck price

Price alerts

Robot Vacuum prices change while you decide

We check the price of every Robot Vacuum in the catalog daily and email you the drops, whichever one you pick.

Your subscription could not be saved. Please try again.

Your subscription has been successful.

Feature	Dreame D30 Ultra	iRobot Roomba Plus 515 Combo Robot + AutoWash Dock	Winner
Price	$449.99	$599.99	Dreame D30 Ultra
Warranty	3 years	1 year	Dreame D30 Ultra
Battery Life	230 minutes	295 minutes	iRobot Roomba Plus 515 Combo Robot + AutoWash Dock
Connectivity	2.4 GHz WiFi	2.4 GHz WiFi, 5 GHz WiFi	iRobot Roomba Plus 515 Combo Robot + AutoWash Dock
Integrations	Google Home, Alexa, Home Assistant	Google Home, Alexa	Dreame D30 Ultra
Suction Power	25000Pa	22000Pa	Dreame D30 Ultra
Rating	4.2	4.2	Tie
Auto Recharge	YES	YES	Tie
Navigation Type	Laser (LiDAR)	Laser (LiDAR)	Tie
Obstacle Detection	YES	YES	Tie
Cliff Detection	YES	YES	Tie
Multi-Room Mapping	YES	YES	Tie

Winner

Dreame

Dreame D30 Ultra

17% OFF

$449.99

$539.99

Buy on Amazon USACheck price

+ Price: $449.99
+ Warranty: 3 years
+ Integrations: Google Home, Alexa, Home Assistant
- Battery Life: 230 minutes vs 295 minutes
- Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi

iRobot

iRobot Roomba Plus 515 Combo Robot + AutoWash Dock

14% OFF

$599.99

$699.99

Buy on Amazon USACheck price

+ Battery Life: 295 minutes
+ Connectivity: 2.4 GHz WiFi, 5 GHz WiFi
- Price: $599.99 vs $449.99
- Warranty: 1 year vs 3 years

Frequently Asked Questions

Which is better overall: the Dreame D30 Ultra or the iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?

The Dreame D30 Ultra is the better overall robot vacuum, winning on price, a 3-year warranty, Home Assistant, and 25000Pa suction. The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock wins on battery life and 5 GHz Wi-Fi.

What is the biggest difference between the Dreame D30 Ultra and the Roomba Plus 515?

Suction and warranty versus runtime. The Dreame D30 Ultra is rated at 25000Pa with a 3-year warranty. The iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is rated at 22000Pa and 295 minutes, against 230 minutes on the Dreame.

Does the Roomba Plus 515 support Home Assistant?

It is not documented yet. The Dreame D30 Ultra lists Home Assistant, Alexa, and Google Home. The 515 lists Alexa and Google Home, with Apple Home, SmartThings, Home Assistant, and Matter still unmarked.

Who should buy the Dreame D30 Ultra?

Pet homes that want 25000Pa suction, a 3-year warranty, and Home Assistant on a self-washing LiDAR dock, at the lower price in this pair.

Who should buy the iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?

Large homes that want a 295-minute combo robot with 5 GHz Wi-Fi and 22000Pa suction, and who already live in the iRobot app.

Full comparison table

Compare all 148 Robot Vacuums side by side

You are looking at two of them. The full table lines up all Robot Vacuums in the catalog with the same specs, so you can filter by what you need and sort by price or rating.