Dyson

V9 Submarine Extra

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Overall

#459 in

Vacuum Cleaners

according to Reddit Icon Reddit

Sentiment score50% positive
8
3
5

Top Pros

Top Cons

Last updated: Jun 24, 2026

Reddit Reviews

Reddit IconSumGai7
9 months ago

There are vac/mops that vacuum while you mop like the Bissell Crosswave and Tineco iFloor combos. These mostly only mop and cannot dry vacuum floors, carpets, or do anything above the floor. Among the cordless vac/mops I only recommend machines with removable and replaceable batteries because the battery is such a common failure and wear item. The Hoover Onepwr Streamline and Ryobi Swift Clean are the only vac/mops that are decent and have removable batteries. The Dyson V9 with the Submarine mop attachment is a dry cordless stick vacuum good for all around vacuuming with a mop attachment. The mop attachment mops but doesn’t vacuum at the same time so you need to dry vacuum first and then mop. Vac/mops require a lot of cleanup after each use. Dyson’s submarine also is quite messy and requires a lot of cleanup after each use. Personally I would choose a decent cordless stick vacuum like a Dyson V8 or a LG CordZero and get a good manual mop like a O’Cedar Spin Mop or a good reusable spray mop. Both mop better than the Submarine and are less cleanup than a vacuum/mop. There are lots of choices. Hope that helps.

Reddit IconThe_Truman_Show_2019
9 months ago

Make your life easy: Get the most expensive Dyson that Costco carries. Keep the receipt to make the return go faster. Ours lasts a couple years, we return it to Costco, and then buy a new one.

Reddit IconAimFL
8 months ago

This is what just swayed me...got it last night, should I take it out of the box or return?

Reddit IconFear20000
6 months ago

Can confirm dustbin is crazy small. I have a 500 sqft apartment with a dog and I have the empty it twice. Thinking about exchanging it for the v10 instead. I was more so excited about the wetmop attachment but that thing sucks

Reddit Icongerbera-2021
9 months ago

For me, with three long-haired cats, my Dyson stick saves my life. I got the one at Costco-V something. On full strength I use it on my few rugs , but I keep it on the middle strength for all my other floors. The battery life at full power is pretty short (20 mins) but at least 30-40 mins in the middle setting. I live on a single floor condo so it works perfectly for me.

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