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Herman Miller Cosm vs Aeron

A detailed side-by-side comparison scored on 11 objective criteria.

HMHerman Miller Cosm

Herman Miller Cosm

Ergonomic Office
24/55
$1,465-$2,095
WINNER
AEAeron

Aeron

Ergonomic Office
33/55
$1,544
Criteria
Herman Miller Cosm
Aeron
Total Score24/5533/55
Price Rating0/51/5*
Seat Depth Adjustability0/54/5*
Height Range3/54/5*
Lumbar Comfort2/5*1/5
Armrests2/53/5*
Upper Back Support2/53/5*
Neck Support0/50/5
Breathability5/55/5
Material Quality3/55/5*
Softness2/52/5
Warranty5/55/5
Pros
  • +Outstanding mesh breathability
  • +12-year Herman Miller warranty
  • +Auto-adjusting Intercept suspension
  • +Zero adjustments needed by design
  • +Best-in-class breathability - full mesh keeps you cool
  • +Exceptional build quality and materials
  • +12-year warranty from Herman Miller
  • +Excellent seat depth and height adjustability
Cons
  • -No seat depth adjustment
  • -Very expensive
  • -No manual lumbar adjustment
  • -Limited armrest options (no 4D)
  • -No headrest option available
  • -Lumbar support is minimal compared to Fern/Leap
  • -Mesh seat feels firm - not plush or cushioned
  • -Premium price point
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