Head to head
SIHOO M59AS Ergonomic Office Chair, Desk Chair with 3D vs GABRYLLY Ergonomic Office Chair, Big and Tall Mesh Chair
As an Amazon Associate I earn from qualifying purchases. We have not physically tested these chairs; scores come from manufacturer and Amazon specifications.
SIHOO
SIHOO M59AS Ergonomic Office Chair, Desk Chair with 3D Flip-up Armrests, Computer Chair with Dual Back Design and Adaptive Dynamic Lumbar Support Grey
Very Good
GABRYLLY
GABRYLLY Ergonomic Office Chair, Big and Tall Mesh Chair with Lumbar Support, 3D armrest - 215° Rotation, Adjustable Headrest & Soft Seat, Durable Desk Chair 350LBS for Work Gaming Computer,Grey
Very Good
Scores and Specs Side by Side
| Spec | SIHOO | GABRYLLY |
|---|---|---|
| Price | $199.99 | $217.00 |
| Ergo Score | 55/100 | 54/100 |
| Adjustability | 14/40 | 17/40 |
| Support | 27/30 | 18/30 |
| Build | 14/30 | 19/30 |
| Comfort Index | 71/100 | 59/100 |
| Seat height range | 18.1 to 22 in | Not listed by the seller |
| Seat width | 20.08 in | Not listed by the seller |
| Seat depth | 17.12 in | Not listed by the seller |
| Seat cushion | Mesh | Not listed by the seller |
| Back material | Mesh | Mesh |
| Armrests | 3D adjustable | 3D adjustable |
| Lumbar support | Dynamic | Yes |
| Headrest | Yes | Yes |
| Max recline | 125 degrees | 120 degrees |
| Tilt mechanism | 10° Smart Tilt | Not listed by the seller |
| Base material | Aluminum | Steel |
| Gas lift | Not listed by the seller | Class 3 |
| Weight capacity | Not listed by the seller | 350 lb |
| Overall height | 44.48 to 52.95 in | Not listed by the seller |
| Warranty | 3 years | 2 years |
| Certifications | BIFMA, SGS | BIFMA |
Amazon.com data updated October 13, 2026, 2:34 pm ET. Price and availability are accurate as of the time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply.
Our Verdict
Pick the SIHOO M59AS for flip-up arms, a 3-year warranty and SGS alongside BIFMA. Pick the GABRYLLY if you want a stated 350 lb capacity and a 4.4 rating.
Pick the SIHOO M59AS Ergonomic Office Chair, Desk if
- Its 3D arms are the flip-up kind.
- A 3-year warranty is stated.
- The listing names SGS as well as BIFMA.
Pick the GABRYLLY Ergonomic Office Chair, Big and if
- A capacity of 350 lb is stated.
- Owners give it 4.4 stars across 551 reviews.
Key Differences
- Lock positions: the GABRYLLY states 3, and the M59AS does not state a lock count.
- Recline: the M59AS states 125 degrees and the GABRYLLY states 120.
- Warranty: 3 years on the M59AS, 2 on the GABRYLLY.
- Base: the M59AS is aluminum and the GABRYLLY is steel.
As an Amazon Associate I earn from qualifying purchases. We have not physically tested these chairs; scores come from manufacturer and Amazon specifications.