Current offer comparison — October 24, 2026 snapshot
These are DealsChecked feed observations collected at 12:27 UTC, not completed checkout tests. Cards can refresh separately. The merchant confirms the final price, seller, shipping, tax and return terms.
| Use | Product | Feed price | Feed discount | Offer type | Action |
|---|---|---|---|---|---|
| Tilt lock on its listing; two-way lumbar | SIHOO M18 Ergonomic Office Chair, Upgraded Wheels, Mesh Back Desk ChairOffer unavailable Current brand offers | $144.49 | 15% | Automatic discount | Offer unavailable |
| Flip-up arms; 3D headrest; reclines to 130 degrees | SIHOO M102 Pro Ergonomic Office Chair, 3D Dynamic Lumbar Support, BlackShop on Amazon Details | $139.99 | 22% | Automatic discount | Shop on Amazon |
How to choose between the M18 and M102 Pro
Both are SIHOO's current ergonomic chairs under $150 with mesh backs, adjustable lumbar and headrests, so the comparison isolates lumbar adjustment, recline, armrests, seat and listed load.
Before opening either offer, measure the gap under your desk and decide whether you lean back for breaks: if the arms get in the way at your desk, start with the M102 Pro; if you want to lock the backrest while reclined, start with the M18, whose offer listing mentions a tilt lock (SIHOO's own page does not mention one).
What the M18 offers
SIHOO's M18 page lists a dual-adjustable lumbar support that moves vertically and horizontally, and a headrest that moves 3.9 inches up and down and pivots 45 degrees. SIHOO's M18 page lists a maximum recline angle of 126 degrees, a seat depth of 17.91 inches and a max hip width of 20.08 inches, and describes the armrests as adjustable up and down, labeling them 2D in one caption and 3D in another. SIHOO's M18 page lists support for up to 330 lbs and a 3-year warranty. The Amazon listing for the M18 offer gives the model number M18-M152, mentions Hold 330lbs and Tilt Lock in its title, and lists a maximum weight recommendation of 150 kg. SIHOO's own M18 page does not mention the tilt lock, so check the listing before relying on it.
Where the M102 Pro comes out ahead
SIHOO's M102C Pro page lists adaptive lumbar support, a 3D adjustable headrest and flip-up armrests, which it says save space and flip up when you need more room. SIHOO's M102C Pro page lists a foam-cushioned seat with stretch-fabric upholstery, a seat width of 20.1 inches and a seat depth of 16.9 inches. SIHOO's M102C Pro page lists a non-locking recline of 120 to 130 degrees, a load of up to 330 lbs and a 3-year warranty. Flip-up arms are the practical difference in a tight space, and the M18 page does not list flip-up arms. The Amazon listing for the M102 Pro offer gives the manufacturer part number M102C-PRO-US, describes armrests that flip up to 55 degrees, and lists a maximum weight recommendation of 300 pounds. That is lower than SIHOO's own figure, so if you are near 300 pounds, ask the seller which limit applies.
Which chair fits your setup
For a tight space where the arms get in the way, the M102 Pro's flip-up arms decide it. For recline breaks, the M102 Pro leans further, to 130 degrees, but does not lock; the M18 stops at 126 degrees, and its offer listing mentions a tilt lock. For weight, SIHOO lists 330 lbs for both chairs; the only lower figure is the 300 pounds on the M102 Pro's Amazon offer page, so a user near that limit should confirm it with the seller first. Seat size is close: the M102 Pro lists a 20.1-inch seat width, and the M18 a 20.08-inch max hip width.
Other chairs we checked
We also checked two other chairs. SIHOO's B100 page lists a 3-position recline up to 135 degrees, flip-up armrests, a maximum load of 330 lbs and a 3-year warranty, at a regular price of $219.99. HBADA's E3 Pro page lists a recommended user height of 5'1" to 6'5" and a maximum load of 330 lbs, at a sale price of $486.99. Neither has an offer under $150 in the current feed.
FAQ
Which selected offers are current?
1 current offer is confirmed for the selected product: $139.99. This is an automatic discount; no code is required.
Is the M102 Pro the same chair as SIHOO's M102C Pro?
It appears so. The Amazon listing for the M102 Pro offer gives the manufacturer part number M102C-PRO-US, and SIHOO's own page calls the chair the M102C Pro.
Which chair can I lock while leaning back?
The M18, going by its Amazon listing, which mentions a tilt lock; SIHOO's M18 page lists a maximum recline of 126 degrees but does not mention a lock. SIHOO lists the M102C Pro recline of 120 to 130 degrees as non-locking.
Which chair holds more weight?
SIHOO lists 330 lbs for both chairs. The Amazon listing for the M102 Pro offer gives a maximum weight recommendation of 300 pounds, so confirm the limit with the seller if you are near it.
Sources and method
The SIHOO M18 page , SIHOO M102C Pro page , Amazon M102 Pro listing , Amazon M18 listing , SIHOO B100 page and HBADA E3 Pro page were checked October 24, 2026 UTC. Offer values are dated feed observations collected at 12:27 UTC. We have not tested these products ourselves; performance figures are manufacturer ratings.