Robot Vacuums · Head to head

Eufy Omni C28 vs eufy Omni S2

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from Amazon and official Eufy site.
2026 verdict
Reaching up eufy's own range, the eufy Omni S2 is the more capable robot vacuum of these two, doubling the Eufy Omni C28's rated suction and joining every major smart home platform.
eufy Omni S2
Winner
eufy Omni S2
$1499.99$1599.996% OFF
Buy on Amazon USA
It pairs 30,000 Pa with a self-washing, self-drying roller mop, a 3 L dock bin, a 3 L water tank and a two year warranty, all behind Matter that brings in Apple Home and SmartThings. The Eufy Omni C28 is the value side of the family: it costs less, runs longer at up to 251 minutes, carries a bigger 3 L dock bin and cleans pet hair well at 15,000 Pa. Choose the eufy Omni S2 for more power, mopping and platform support, and the Eufy Omni C28 if the budget and a longer runtime win.
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FeatureEufy Omni C28eufy Omni S2Winner
Price$529.99$1499.99Eufy Omni C28
Rating4.34.4eufy Omni S2
Warranty1 year2 yearseufy Omni S2
Battery Life251 minutes179 minutesEufy Omni C28
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Mattereufy Omni S2
Suction Power15000Pa30000Paeufy Omni S2
Water Tank Capacity2.2L3Leufy Omni S2
Dock Dustbin Capacity3L2.5LEufy Omni C28
Auto RechargeYESYESTie
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, BluetoothTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie

What the differences mean

Suction

The eufy Omni S2 is rated at 30,000 Pa and the Eufy Omni C28 at 15,000 Pa, so the S2 has far more headroom on carpet and thick debris. On hard floors both are already convincing.

Smart home support and warranty

The eufy Omni S2 supports Matter, Apple Home and SmartThings and carries a two year warranty. The Eufy Omni C28 stops at Alexa, Google Home and Home Assistant and one year, so the S2 fits more homes and for longer.

Battery and dock bin

The Eufy Omni C28 runs up to 251 minutes and holds 3 L in its dock bin, against 179 minutes and 2.5 L on the eufy Omni S2. On a large floor plan the cheaper robot actually lasts longer between charges and empties.

Water tanks

The eufy Omni S2 carries a 3 L clean-water tank and the Eufy Omni C28 a 2.2 L one, both washing and dosing their own mops. The S2 refills less often on a big hard-floor home.

Body height and noise

The eufy Omni S2 is 98 mm tall and rated at 59 dB, while the Eufy Omni C28 is 110.6 mm and rated at 54.89 dB. The S2 reaches under lower furniture, the C28 runs quieter while it works.

Which one to buy if

Eufy

Eufy Omni C28

34% OFF
Prime exclusive deal
$529.99
$799.99
Buy on Amazon USA
  • + Price: $529.99
  • + Battery Life: 251 minutes
  • + Dock Dustbin Capacity: 3L
  • - Rating: 4.3 vs 4.4
  • - Warranty: 1 year vs 2 years
Winner
Eufy

eufy Omni S2

6% OFF
Prime exclusive deal
$1499.99
$1599.99
Buy on Amazon USA
  • + Rating: 4.4
  • + Warranty: 2 years
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Price: $1499.99 vs $529.99
  • - Battery Life: 179 minutes vs 251 minutes

What owners say

Owners of both eufy robots tell the same story about the mop doing real work, since the HydroJet roller rinses itself as it scrubs and the recovered water comes out filthy even from floors that looked clean, and both groups like how little they have to do around the station. eufy Omni S2 owners then talk about suction that stays strong because the bin does not clog and obstacle avoidance that steers around cords and pet dishes, and their warnings are a tall 98 mm body, a very large dock and software that loses its way on complex layouts. Eufy Omni C28 owners highlight strong pet-hair pickup and value, and their recurring complaints are slow mop drying, getting hung up on cables, and a handful of units that arrived with a defective water compartment.

Frequently Asked Questions

Which is better overall: eufy Omni S2 or Eufy Omni C28?

The eufy Omni S2, if you want the most capable machine. It has double the rated suction, a two year warranty and support for Matter, Apple Home and SmartThings. The Eufy Omni C28 is the value pick, with a longer runtime and a bigger dock bin at a lower price.

What is the biggest difference between the Eufy Omni C28 and the eufy Omni S2?

Suction and platform support. The eufy Omni S2 is rated at 30,000 Pa with Matter, Apple Home and SmartThings, while the Eufy Omni C28 is rated at 15,000 Pa and works with Alexa, Google Home and Home Assistant only.

Which one is better for pet hair, the Eufy Omni C28 or the eufy Omni S2?

Both use a self-washing roller mop and anti-tangle brushes, and owners of each praise cat and dog hair pickup. The eufy Omni S2 has more than double the rated suction, which helps on thicker carpet.

Do the Eufy Omni C28 and the eufy Omni S2 work with Apple Home and Matter?

Only the eufy Omni S2. It supports Matter, which brings it into Apple Home and SmartThings, along with Alexa, Google Home and Home Assistant. The Eufy Omni C28 has no Matter, Apple Home or SmartThings support.

Which one runs longer, the Eufy Omni C28 or the eufy Omni S2?

The Eufy Omni C28, rated up to 251 minutes against 179 minutes on the eufy Omni S2, and it also holds more in its dock bin. The eufy Omni S2 compensates with far more suction and a longer warranty.

Who should buy the Eufy Omni C28?

Buyers who want a self-cleaning roller mop and strong pet-hair pickup at a lower price, and who do not need Matter or the extra suction.

Who should buy the eufy Omni S2?

Homes with thick carpet or heavy debris and a smart home on Apple Home, SmartThings or Matter, where the extra suction, slimmer body and two year warranty matter.

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