Disclosure: UPLIFT Desk provided the Clarksville at no cost for review. Matt used it for one week of full workdays. The Sihoo Doro C300 Pro is a research-backed comparison from current Sihoo US documentation, not a sit test. This post contains affiliate links.
The UPLIFT Clarksville and the Sihoo Doro C300 Pro sit in the same shopping range with different seats and different evidence. The Clarksville is a foam-seat chair this site has used. The Pro is a full-mesh chair with a published seat-depth slider and 6D arms, and no sitting time here.
Check today's price $359
Check today's price $359.99−54%
If you want the standard C300, use UPLIFT Clarksville vs Sihoo C300. If you want the current V2, use UPLIFT Clarksville vs Sihoo C300 Pro V2. Those are different chairs.
Bottom line
Get the Clarksville if: You want a foam seat, a documented 17.3 to 20 inch slider, and the 15-year UPLIFT warranty, with one week of workday notes. The Clarksville is $359.
Get the C300 Pro if: You want full mesh, a published seat-depth slider, 6D arms, and a headrest, and you accept a spec-sheet recommendation. The C300 Pro is $359.99−54%.
No universal comfort winner. Foam vs mesh and a one-week sit vs a spec sheet are not the same test. This page does not copy V2 features onto the Pro.
Sihoo's Back to School sale is listed through August 23, 2026. The official US store currently publishes extra $20 off with code BTS20. That code is for the official store, not Amazon. Confirm the window, code, and stock at checkout. Do not treat a calculated post-code total as guaranteed.
Which Chair for Your Priorities
| Your priority | Better fit | Why |
|---|---|---|
| Foam seat with hands-on notes | UPLIFT Clarksville | 3-inch molded foam used here for one week |
| Full mesh seat and back | Sihoo Doro C300 Pro | Mesh seat and back on the current US Pro page |
| Longer published warranty | UPLIFT Clarksville | 15 years vs 3 years |
| Documented seat-depth slider | Either | Clarksville: 17.3 to 20 inches. Pro: 16.81 to 17.76 inches |
| Included headrest | Sihoo Doro C300 Pro | 3D headrest on the Pro page |
| More published arm directions | Sihoo Doro C300 Pro | 6D coordinated arms, not V2 8D |
| A recline we have used | UPLIFT Clarksville | 2:1 synchro-tilt, five locks, one week of notes |
Shopping C300 vs Pro vs V2 is a different page: Sihoo C300 vs Pro vs Pro V2.
What We Verified
Matt used the Clarksville for one week of 6 to 8 hour workdays at a 6-foot frame. That supports notes on foam feel, lumbar contact, recline, and armrest play. It does not prove long-term foam life. This page does not invent more sit time.
WorkstationSetup has not sat in the C300 Pro. Every Pro specification below comes from Sihoo's current US documentation as already used on the C300 3-way. We do not turn those claims into comfort scores. We do not copy V2 8D arms, DynaCore, or 105 / 120 / 135 locks onto the Pro.
Head-To-Head Specs
| Feature | UPLIFT Clarksville | Sihoo Doro C300 Pro |
|---|---|---|
| Current price | $359 | $359.99−54% |
| Evidence | One week of hands-on workday use | Current US documentation, no sit test |
| Seat and back | 3-inch molded polyurethane foam seat, woven nylon mesh back | Mesh seat and back |
| Seat depth | 17.3 to 20 inches, user-adjustable | 16.81 to 17.76 inches, user-adjustable |
| Seat height | 17 to 22 inches | Not stated as a numbered range on the current US Pro page used here |
| Lumbar | Four height positions on a flexible frame (height, not firmness) | Self-adaptive dynamic lumbar. Not V2 lumbar 2.0. No DynaCore label |
| Armrests | 3-way: height, depth, pivot. Noticeable play in use | 6D coordinated. Current US Pro page also lists inward / outward movement and a tilt lock. Not 8D |
| Headrest | None | Included 3D headrest |
| Recline | 2:1 synchro-tilt, three tension settings, five lock positions | Adjustable recline. Lock angles are not listed as 105 / 120 / 135 on the current US Pro page |
| Recline tension | Manual, three settings | Manual / dynamic. No 40 kg to 100 kg figure on the current US Pro page |
| Manufacturer fit claim | Used here at a 6-foot frame | Sihoo cites users from 5 feet to 6 feet 3 inches |
| Manufacturer capacity | 300 lb | 330 lb on the current US page |
| Warranty | 15 years | 3 years |
Key Difference: Foam vs Mesh
The Clarksville's 3-inch molded foam with a waterfall edge was firm on day one and more comfortable for Matt after about three days. It did not bottom out during that week. That is a short-term comfort note, not a foam-life claim.
The Pro uses mesh for the seat and the back. Mesh is the ventilation choice on paper. WorkstationSetup has not felt that mesh, so this page does not rate pressure or heat.
Winner if you already know you want foam: Clarksville. Winner if you already know you want full mesh: C300 Pro.
Key Difference: Seat Depth, Arms, and Headrest
Both chairs publish a user-adjustable seat-depth range. The Clarksville slider is 17.3 to 20 inches. The Pro slider is 16.81 to 17.76 inches. The Clarksville window is wider on paper. Which one matches your legs is untested for the Pro.
Clarksville armrests reached a useful typing height and slid under the desk. They also had play when leaned on. That is the clearest hands-on tradeoff.
The Pro lists 6D coordinated arms, plus inward / outward movement and a tilt lock on the current US page. Numeric travel is unpublished. Tightness is untested. This is not the V2's 8D spec.
The Pro includes a 3D headrest. The Clarksville has none.
Winner for a headrest and more published arm directions: C300 Pro. Winner for a recline we have used: Clarksville.
Key Difference: Warranty and Capacity
UPLIFT publishes 15-year coverage for the Clarksville. Sihoo publishes 3 years for the Pro. Warranty length is not a durability test. Read the current terms.
UPLIFT rates the Clarksville at 300 lb. Sihoo rates the Pro at 330 lb. Those are manufacturer limits, not load tests from this site.
Winner for published coverage length: Clarksville.
Who Should Buy Which
Get the UPLIFT Clarksville if:
- You prefer a foam seat over a full-mesh seat
- You want the wider published seat-depth window and the 15-year warranty
- You value the one-week workday notes on this site
- You can accept some armrest play and no headrest
Price: $359
Get the Sihoo Doro C300 Pro if:
- You want mesh on the seat and the back
- You want a published seat-depth slider and 6D arms without paying for V2 extras
- You want the included 3D headrest
- A 3-year warranty matches your plan
- You accept a spec-based recommendation, not a sit test
Price: $359.99−54%
Buying Tips
- Pick the seat material first. Foam and mesh fail different people.
- Do not buy the Pro as if it were the V2. The Pro does not get 8D arms, DynaCore, or the 105 / 120 / 135 lock set on the current US page.
- Measure a chair that already fits. Compare seat depth to that chair, not only to your standing height.
- Confirm BTS20 at checkout if you buy from the official Sihoo store before August 23, 2026.
Frequently Asked Questions
Is the UPLIFT Clarksville better than the Sihoo C300 Pro?
The Clarksville is the better-supported pick on this site because Matt sat in it for a week. The Pro is the better feature match if you want full mesh, a headrest, and 6D arms. This page does not name a comfort winner.
Is the C300 Pro the same chair as the C300 Pro V2?
No. The V2 adds DynaCore, 8D arms, lumbar 2.0, and locked 105 / 120 / 135 recline. This page is the Pro only. Use Clarksville vs C300 Pro V2 if that is the chair you are shopping.
Does the C300 Pro have a foam seat?
No. The current US documentation lists a mesh seat and back.
Does the C300 Pro have 8D arms?
No. The current US Pro page lists 6D coordinated arms. 8D is the V2 spec.
What is the Clarksville weight capacity?
300 lb.
What is the C300 Pro weight capacity?
Sihoo's current US page lists 330 lb.
Testing disclosure: UPLIFT Desk provided the Clarksville at no cost. Matt used it for one week of 6 to 8 hour days. WorkstationSetup has not sat in the C300 Pro. Pro statements follow current Sihoo US documentation as used on the C300 3-way, not the V2 product page.
Related Guides
- UPLIFT Clarksville Ergonomic Chair Review: One week of workday notes and photos
- UPLIFT Clarksville vs Sihoo C300: The same Clarksville against the base C300
- UPLIFT Clarksville vs Sihoo C300 Pro V2: The same Clarksville against the V2
- Sihoo C300 vs Pro vs Pro V2: The C300 family 3-way
- Best Ergonomic Chairs Under $400: More chairs in this shopping tier
- Best Ergonomic Chairs Under $600: Broader warranty and seat-design options