Mouth Call vs Slate Call: Which One Should You Learn First?

The verdict

These are not competing products so much as two different jobs. A slate (pot) call is a cupped call with a stone or glass surface you stroke with a striker: two hands, a lap, and a sound that is easy to shape. A mouth call (a diaphragm) is a latex-and-frame call that sits against the roof of your mouth: no hands, no movement, and a learning curve measured in weeks. The NWTF's Turkey Hunting 101 lists both among the standard call types, and most hunters end up carrying both.

We have not run these calls. Every sound description here is the maker's, and the scores follow the rubric on our methodology page: beginner learning curve 30%, sound range 20%, weather tolerance 20%, build and materials 15%, carry and vest noise 15%.

The two at a glance

Side-by-side specs

Two mouth calls and two slates, every figure linked to the page it came from. A dash means the maker does not publish it — which on diaphragms is most of the physical detail.

Which one you can run this month

The slate, and by a wide margin. WoodHaven's FAQ says “Box calls and pot calls with a slate surface will be the most user friendly” and describes slate as forgiving. Primos says the Pennsylvania slate on its Jackpot is “the easiest surface to use.” Knight & Hale sells the Slate Hammer as “perfect for beginners.” Three makers, one message.

Diaphragms get beginner claims too — Primos calls the True Double “a very easy call to use,” and Quaker Boy says its Beginner's Double is built from “two precisely set, medium reeds to help the beginner caller” — but easy for a diaphragm is not easy in absolute terms. You are learning to control air pressure and tongue position against latex, which nobody gets right on the first day. The NWTF's Mouth Call Madness is a fair picture of the work involved, and our step-by-step is how to use a mouth call.

In our rubric the gap shows up exactly where you would expect. A pot call starts at 6 for learning curve and a maker's beginner claim adds a point, so both slates here score 7. A mouth call starts at 4 and the same claim takes it to 5. That two-point gap, at 30% weight, is the whole reason to start with the slate.

The hands problem

Here is the scenario that sells mouth calls. A gobbler has answered and is coming. He is behind a tree at 60 yards and will step into the open at 30. You need one soft cluck to turn his head, and your gun is already up. With a pot call, that cluck costs you two hands, a shift of your arms and a movement a turkey is built to notice. With a diaphragm, it costs you nothing.

That is the whole argument, and it is why almost every experienced turkey hunter runs a mouth call for the endgame even if they call the bird in on friction. The NWTF makes the related point in Soft Talk Kills: the close-range calling that finishes birds is quiet and subtle, and that is precisely when you cannot be moving. How to sit and where to face so a friction call is workable at all is in our turkey hunting setup walkthrough.

Volume, and calling to a bird at 200 yards

For reaching out, both can work, and the surface matters more than the type. Knight & Hale claims “long-distance volume” for its glass Hammer; Primos says aluminum “creates louder and bolder high pitches to help you reach and coax gobbles out of otherwise quiet Toms.” Slate is the softer surface of the three, which is part of why it is forgiving: Knight & Hale describes its slate side as “smooth, softer hen sounds.”

On a diaphragm, volume comes from you. A three-reed raspy cut will carry, but getting real volume out of a mouth call without it breaking up is an advanced skill. If your main problem is locating birds rather than finishing them, a box call is louder than either of these and easier than both — see our box call picks and box call vs slate call. Locating is a different tool again: locator calls.

If you want the surfaces compared directly rather than the call types, that is slate vs glass vs aluminum pot calls.

Rain, dew and a wet slate

This is the clearest published difference between the two, and it is not close. A diaphragm lives in your mouth, so rain is irrelevant; in our bands every mouth call scores 9 for weather tolerance. A slate surface has no weather claim from any maker in our registry, which scores 5. Knight & Hale's warranty even excludes “weather-related conditions.”

Practical version: wet slate goes quiet and slick, and so does a damp striker tip. If you hunt a lot of wet mornings and want a friction call, the answer is not a slate but an aluminum or all-weather surface — Primos calls anodized aluminum its “most weather-resistant calling surface,” and WoodHaven sells its Fusion Aluminum for “True turkey sounds in all weather conditions” with strikers it says run when wet. Or you carry a diaphragm for rain, which is what most people do.

Care, chalk and hygiene

Both calls need something from you, and it is not the same something.

• Slate: keep your fingers off the surface. Primos is blunt about it on the Jackpot — never touch the slate, because hand oil “will create a slick spot” — and says to keep the surface roughed up with the enclosed conditioning pad and the striker tip clean. Both slates here ship with a pad. The NWTF's Turkey Call Care puts it simply: “Keeping calls clean is the best way I know to avoid having to condition frequently.”
• Mouth call: rinse it, dry it, store it in the case it came with (Quaker Boy includes a call case, Primos a pin box), and keep it out of a hot truck. Latex stretches and ages, so diaphragms are the one turkey call with a service life measured in seasons rather than decades.

Full routines are in how to use a slate call and how to use a mouth call.

What each one costs you

We do not print prices, because Amazon prices move and a printed price is wrong within a week. What we can tell you is the shape of the cost. A slate call is one purchase that includes the striker and pad on both calls here, and it lasts for years with conditioning. A mouth call is cheaper per call but is consumable, and most hunters end up owning several cuts. Check current prices with the buttons on this page.

Warranties differ too: Knight & Hale gives one year on the Slate Hammer and excludes weather damage, Primos gives one year on the True Double and the Jackpot to the original purchaser, and Quaker Boy publishes no warranty for the Beginner's Double at all.

The honest answer: both, in this order

Buy the slate now, and start the mouth call the same week. The slate gets you a hen sound you can take hunting this spring; the mouth call is the skill you build during the season so that next spring you can finish a bird without moving. For a first season we would rank the order like this:

1. A friction call you can run — slate pot or box call — because a bird has to answer before anything else matters.
2. One diaphragm, in the truck, from January.
3. A locator call, so you know where a bird is before you ever yelp.

That sequence, with the rest of the kit, is best turkey calls for beginners, and the calling itself is how to call a turkey for beginners. If holding a pot and a striker sounds like too much, there is an easier friction call again: push-button calls.

Before you buy either one

Check the striker is in the box

A pot call without a striker is not a call. Both slates here include one (hickory on the Slate Hammer, one-piece laminated hardwood on the Jackpot) plus a conditioning pad. If you buy a pot call that does not list a striker, add one.

Buy the reed count down, not up

For a first diaphragm, two reeds are easier than three. Both mouth calls here are doubles, and that is deliberate: less latex to control. Cut names (batwing, V, ghost) come later, and mouth call cuts explained covers what they do.

Get a pocket for each

A diaphragm needs a case that keeps it flat and clean; a pot call needs a pocket that keeps fingers and grit off the surface. Vests with dedicated slate, striker and diaphragm pockets are in our vest ranking.

Learn one sound properly

A plain yelp, at the right volume, kills more turkeys than a repertoire. Both call types make one; the NWTF's Turkey Hunting 101 suggests learning “the basic sounds like cluck, purr, putt and yelp, to start.” What each sound means is in turkey calls and what they mean.

Then decide how much you will call

New hunters call too much, and that is a bigger problem than which call they bought. How often to call turkeys is the fix.