EDITORIAL COMPARISON · 1 VS 1
Kamado Joe Classic III 18" vs Primo Oval XL 400: which one should you choose?
Comparison by Valery Grin · 23 May 2026
The most conceptual matchup in the catalog: the Kamado Joe Classic III, the best-selling round premium kamado, against the Primo Oval XL 400, the only oval kamado made in the USA. The shape physically changes how you cook — it's not marketing.
Specs side by side
| Specification | Kamado Joe Classic III 18" | Primo Oval XL 400 |
|---|---|---|
| Diameter | 46 cm | 51 cm |
| Diners | 6-8 | 8-10 |
| Weight | 113 kg | 116 kg |
| Material | Cerámica esmaltada | Cerámica patentada Primo |
| Temperature range | 110°C – 400°C | 105°C – 400°C |
| Warranty | Vitalicia (cerámica) | Vitalicia (cerámica) |
| Current price | €1,899 | €1,799 |
Verdict by use case
Five real cooking scenarios. For each one we pick a winner with a concrete reason — no diplomatic ties.
For low & slow smoking
Winner: Primo Oval XL 400
The Primo's oval shape creates two real heat zones (direct + indirect) without juggling the plate setter. Smoking vegetables alongside brisket without rearranging is physically superior.
For pizza and oven bread
Winner: Kamado Joe Classic III 18"
The Classic III's round chamber concentrates heat over the pizza symmetrically. In the Primo, a round pizza in an oval chamber loses edge uniformity.
For big families or parties
Winner: Primo Oval XL 400
51 cm long axis and 8-10 diners — a whole rack of ribs lies flat without bending. The Classic III forces you to curve the rack to fit.
For balconies or tight spaces
Winner: Kamado Joe Classic III 18"
The Primo Oval XL 400 weighs 116 kg with cart vs the Classic III's 113 kg — tied on weight, but the oval format takes more floor footprint. On a small terrace, the Classic III wins.
For a tight budget
Winner: Kamado Joe Classic III 18"
The Primo lands roughly €100 below the Classic III, but the Classic III has a deep Spanish second-hand market — Primo barely shows up on Wallapop. Resale settles it.
Best and worst of each
Kamado Joe Classic III 18"
Best
- Multi-tier Divide & Conquer system
- SlōRoller turns it into a convection oven
- Dense ceramic build, excellent heat retention
Worst
- Premium price
- Weighs 113 kg — needs two people to move
Primo Oval XL 400
Best
- Unique oval shape: two real heat zones
- Made in USA, not China
- Robust build, 116 kg
Worst
- Smaller accessory ecosystem than BGE/Kamado Joe
- Stock thermometer is basic
Our pick: Kamado Joe Classic III 18"
The Classic III for the least romantic reason: ecosystem, community and resale. The Primo's oval is genuinely superior for two-zone cooking, but Primo's Spanish dealer network is narrow, specific accessories are hard to find, and the second-hand market barely exists. If you live near a Primo dealer and do multi-zone seriously every week, the Primo is the bold and correct call — for 95 % of buyers, the Classic III delivers more across a year.
KEEP READING
Take this decision further
- Editorial guide
Your first kamado: the complete pre-purchase guide
Size, materials, brand and budget. Everything you have to decide before clicking Buy, told by someone who has made enough mistakes.
- Recipe to try
Low-and-slow smoked brisket
The kamado acid test. Ten hours at 110°C, a deep bark, a pink smoke ring and a texture that gives way under the weight of a fork.
- Recipe to try
St. Louis-style ribs on the kamado
St. Louis-cut ribs (no rib tips), cooked reverse-sear: four hours at 130°C with light smoke, then a final blast of direct heat to caramelise the glaze.
- Glossary term
Plate setter
Big Green Egg's name for its three-legged ceramic deflector, equivalent to the modern ConvEGGtor.
- Glossary term
Two-zone cooking
Setup combining direct fire and an indirect zone in the same chamber for searing and cooking at once.