A kamado is a thick-walled, egg-shaped charcoal cooker — a modern take on a design that is thousands of years old. You light a bed of lump charcoal in the bottom, and the heavy walls plus a top-and-bottom vent pair let you meter airflow so precisely that one cooker runs a 225°F overnight smoke or a 700°F sear. That range in a single unit is the whole reason the kamado has a cult following: it is a smoker, a grill and a wood-fired oven, and it does all three on a fraction of the charcoal an open kettle would burn through.
The first real fork is ceramic versus steel. A ceramic kamado — the Kamado Joe Classic line and the Big Green Egg — uses thick glazed ceramic (Kamado Joe publishes 1.25 in walls) that stores an enormous amount of heat and holds a setpoint through wind and lid openings. A steel kamado — the Char-Griller AKORN — uses triple-wall 22-gauge steel instead. Steel heats up faster, weighs about a third as much (the AKORN is 100 lb against the Classic II’s 188 lb), and will not crack if you knock it, but it holds temperature a little less steadily than a mass of ceramic. Steel is how you find out whether the kamado shape fits your cooking without spending ceramic money.
Both materials deliver the kamado’s two signature traits: heat retention and fuel efficiency. Because the walls hold so much heat, the fire needs very little air to stay put, so a kamado sips charcoal — a long smoke that would empty a kettle can run on a single load. That same thermal mass is what makes the temperature so stable once it settles: you set the vents, the cooker finds the number, and it stays there with almost no fuel added. It also means a kamado is slow to change its mind — overshoot your target and you wait for all that ceramic to give the heat back, so you creep the vents up, not slam them open.
The payoff is versatility. Pull the heat deflector and you have a screaming-hot grill that sears steaks over lump; drop the deflector back in and choke the vents and the same cooker is a stable low-and-slow smoker. The ceramic models here run 225–750°F+ and the steel AKORN 200–700°F, which covers essentially everything short of a pizza oven — and with a stone, it does pizza too. No pellet grill sears like this, and no gas grill smokes like this; the kamado’s pitch is doing both in one footprint.
Where the ceramic models separate is stock accessories. Kamado Joe’s Divide & Conquer rack system splits the grate into half-racks at two heights so you can sear and roast at once, and its Air Lift hinge and Kontrol Tower top vent are genuinely better hardware than the Big Green Egg’s stock band hinge and simpler vent. The Classic III adds a Harvard-designed SloRoller diffuser that turns the kamado into a much more even low-and-slow smoker — worth it if you smoke as often as you sear, which is why it is our pick for smoking. We put the two ceramic heavyweights head to head in Big Green Egg vs Kamado Joe.
You’ll notice the ranked picks above are all cookers you can buy and price-shop online, and the Big Green Eggisn’t among them. That’s deliberate: the Egg is dealer-only. It is not sold on Amazon, so there is no live online price to show and no one-click buy — you purchase the Large EGG through a local authorized dealer, which is a hassle for some and part of the appeal for others (hands-on setup, a warranty relationship, a shop that stocks parts). It still has the deepest accessory catalog and the community that built the category, so we give it a full, honest hearing in Big Green Egg vs Kamado Joe rather than list it here with no price attached.
Who should buy a kamado? The cook who wants one cooker that both sears hot and smokes low, and who values fuel efficiency and a set-and-hold fire over the raw deep-smoke character of a stick burner. If deep smoke and bark are the whole point, weigh a kamado against an offset first in our offset vs pellet comparison, which frames the same convenience-versus-craft trade a kamado sits in the middle of. Whatever you buy, add a good meat thermometer— a kamado’s dome gauge reads dome air, not grate or internal temperature. We did not test these in a lab; we compiled every published spec, did the heat-and-fuel arithmetic, and read the consensus of real owners. Exactly how is on our methodology page.