Based on 3 r/BuyItForLife mentions

S4 Max Robot Vacuum

$89.08

Roborock

Reddit mentions

  • “Roborock s4. I've had two since covid. They clean weekly. No issues. I've also had a s7 mopping for about 3 years. No issues as well.”
    r/BuyItForLife ·
  • “Roborock S4 Max - Ordered 09/2021 and it's been running 3+ times a day (1 full house run at least) for the entirety of it's ownership. I've just not retired it to secondary floor…”
    r/BuyItForLife ·
  • “Important to take into account: spare part availability, check for filters, brushes. That said my roborock s5 max has been running for 500 hours and cleaned 30k km”
    r/BuyItForLife ·
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Product details
Surface Type
Carpet, High-pile carpet, Low-pile carpet
Wet <wbr>/<wbr> Dry
Only serves as a vacuum cleaner, No
Suction Power
Self-adjusting suction
HEPA Certified
HEPA filter
Filtration Type
Washable filter
Power Source
Cordless
Voltage
120 V
Weight
Lighter
Depth
13.90 in (35.3 cm)
Height
5.04'' (12.8 cm)
Width
Similar to other available robot vacuums, 13.8''
Battery Life
Well over three hours (on 'Silent' mode), 116 min (Minimum), 199 min (Maximum), Almost two hours (on 'Max' mode)
Battery Charging Time
3 hours
Battery Type
5,200 mAH lithium ion
Removable Battery
Replaceable
Vacuum Type
Robot Vacuum
Construction Material
Plastic (dirt compartment), Durable rubber (two main wheels), Hard plastic (with a glossy finish on top)
Design Highlights
No-go Zones, App Control
Noise Level
Less noise (in Quiet cleaning mode)
Top Use Cases
Pet hair
Typical Users
Pet owners
Assistant Support
Alexa
Storage Type
Charging station

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