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Compare ergonomic office chairs
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Comparing 2 chairs across key specs.
Herman Miller
Aeron
Brand
Herman Miller
Model
Aeron
Era produced
1994–Present (Remastered 2016)
Discontinued
No
MSRP (new)
$1,795
Avg refurbished
$850
Avg used
$450
Height range
4'8"–6'7"
Weight capacity
350 lbs
Seat width
20.25"
Seat depth
17"
Backrest height
23"
Seat material
Full Mesh
Armrests
4D Articulating
Forward tilt
Yes
Lumbar
Asymmetrical
Headrest
Aftermarket Only
Cylinder
Top-activated pneumatic (height range varies by size/cylinder)
Caster stem
11mm × 22mm standard
Frame
Die-cast aluminum + glass-reinforced nylon
Tilt / lock
Harmonic 2 tilt; tilt limiter / forward seat-angle options
Arm adjustability
Fully adjustable (height, width, depth, pivot) on common configs
Herman Miller
Mirra 2
Brand
Herman Miller
Model
Mirra 2
Era produced
2013–Present
Discontinued
No
MSRP (new)
$1,295
Avg refurbished
$550
Avg used
$320
Height range
5'0"–6'2"
Weight capacity
350 lbs
Seat width
19.5"
Seat depth
18"
Backrest height
22"
Seat material
Elastomer
Armrests
4D Articulating
Forward tilt
Yes
Lumbar
Height-Adjustable Pad
Headrest
None
Cylinder
Top-activated pneumatic (low / standard / extended)
Caster stem
11mm × 22mm standard
Frame
Polymer + AireWeave seat suspension
Tilt / lock
Harmonic 2; tilt limiter / seat-angle options
Arm adjustability
Fully adjustable 4D arms on common configs
| Spec | Herman MillerAeron | Herman MillerMirra 2 |
|---|---|---|
| Brand | Herman Miller | Herman Miller |
| Model | Aeron | Mirra 2 |
| Era produced | 1994–Present (Remastered 2016) | 2013–Present |
| Discontinued | No | No |
| MSRP (new) | $1,795 | $1,295 |
| Avg refurbished | $850 | $550 |
| Avg used | $450 | $320 |
| Height range | 4'8"–6'7" | 5'0"–6'2" |
| Weight capacity | 350 lbs | 350 lbs |
| Seat width | 20.25" | 19.5" |
| Seat depth | 17" | 18" |
| Backrest height | 23" | 22" |
| Seat material | Full Mesh | Elastomer |
| Armrests | 4D Articulating | 4D Articulating |
| Forward tilt | Yes | Yes |
| Lumbar | Asymmetrical | Height-Adjustable Pad |
| Headrest | Aftermarket Only | None |
| Cylinder | Top-activated pneumatic (height range varies by size/cylinder) | Top-activated pneumatic (low / standard / extended) |
| Caster stem | 11mm × 22mm standard | 11mm × 22mm standard |
| Frame | Die-cast aluminum + glass-reinforced nylon | Polymer + AireWeave seat suspension |
| Tilt / lock | Harmonic 2 tilt; tilt limiter / forward seat-angle options | Harmonic 2; tilt limiter / seat-angle options |
| Arm adjustability | Fully adjustable (height, width, depth, pivot) on common configs | Fully adjustable 4D arms on common configs |
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