Most people who set out to buy their first S.T. Dupont arrive at the counter already knowing the name Ligne 2. Fewer know the Slim 7, and those who do often assume it is a lesser version of the same idea. It is not. The two are built to the same standard, in the same workshops, with the same finishes available on each, and they answer different questions. The Ligne 2 asks how a lighter should feel when it is the centre of a small ceremony. The Slim 7 asks how a lighter should feel when it is not meant to be noticed at all.
Choosing between them is therefore less a matter of better and worse than of temperament and habit. What follows sets out how they differ in the hand, in the pocket and on the table, so that the choice can be made on the right grounds.
What the two share
It is worth beginning with the common ground, because it is considerable. Both are made by a maison that has been producing luxury objects since 1872 and that holds France's Entreprise du Patrimoine Vivant label for the craft skills it preserves. Both are finished to the same exacting standard, whether in natural lacquer built up coat by coat, in gold or palladium plating, or in guilloché patterns cut into the metal. Both are designed to be refilled, serviced and carried for decades rather than replaced. Whichever you choose, you are not compromising on quality; you are choosing a form.
The Ligne 2: presence
The Ligne 2 is the fuller of the two. It has a substantial, rectangular case that fills the palm and sits with real weight in the hand, and that weight is part of the point. Picking it up feels like the start of something. Setting it down feels like the end. It is the piece most people picture when they hear the maison's name, and it has become the reference not because it is the oldest or the most expensive but because its proportions have proved so durable. Set beside a lighter designed last year, it does not look dated; set beside one designed decades ago, it does not look modern. It looks like itself.
That steadiness makes it the heritage choice, the one that is handed down. It is also, frankly, the one that gets noticed. A Ligne 2 on a table draws the eye, and the person who owns it has usually decided that they are content for it to do so.
The sound, and why it matters here
No discussion of the Ligne 2 can leave out the sound. Lift the cap and it releases with a clear, bright note, the famous cling, that collectors recognise across a room. It is a by-product of the way the hinge and case are made and fitted, and the maison has never treated it as incidental. For many owners it is the reason to choose the Ligne 2 over any alternative: the small, repeatable pleasure of a sound that belongs to this object and no other.
The Slim 7 does not attempt to compete on that ground. Its character is quieter by design, and comparing the two on sound alone is to miss what the Slim 7 is for. If the ring matters to you, and for a good many people it is the whole romance of the brand, the Ligne 2 is the answer and the rest of this article is confirmation.
The Slim 7: discretion
The Slim 7 takes the maison's craft and puts it into a thinner, lighter case that disappears into a jacket pocket or a shirt pocket without pulling the fabric or announcing itself. It is a lighter for the person who wants everything about a Dupont except the sense of occasion: the finish, the quality of the mechanism, the confidence that it will work, but in a form that does not ask to be looked at.
That is not a smaller ambition. Making a slim object feel solid is harder than making a heavy one feel solid, and the Slim 7 manages it. It closes with a definite, satisfying action, it sits flat and stable when set down, and it carries the same lacquers and platings as its larger sibling, where the slim proportions give the finish a different, more linear character. A lacquered Slim 7 reads as a strip of colour rather than a block of it, which some people find the more elegant of the two.
The pocket test
The most useful way to choose is also the simplest: consider where the lighter will actually live. A Ligne 2 is comfortable in a coat pocket, a bag or a desk drawer, and it is perfectly carried in trousers by those who like to feel it there. It is not, however, a piece that vanishes. A Slim 7 vanishes. It goes in the inside pocket of a jacket and stays there through a dinner without reminding you of its presence; it slips into a shirt pocket without dragging the placket. For someone who travels, dresses lightly or simply dislikes a heavy pocket, that difference decides the matter.
The reverse is also true. Owners who like to feel the object, who enjoy the heft of a well-made thing and the small drama of producing it, tend to find the Slim 7 too self-effacing. There is no right answer here, only an honest one about how you like to carry things.
Occasions: the table and the move
A shorthand that holds up well is that the Ligne 2 is for the table and the Slim 7 is for the move. At home, at a club or at a long dinner where the cigar is part of the evening, the Ligne 2 earns its weight. It sits on the table between lightings, it is admired, it is passed to a friend, and its sound punctuates the occasion. On a terrace, on a walk, on a flight of stairs at the end of the night, the Slim 7 is the one you are glad to have, because it is the one you did not have to think about.
Many people who smoke both at home and out find, after a year or two, that they want both. That is not a sales pitch so much as an observation about how these two pieces divide the territory between them. They overlap very little.
Finishes, and how they read on each
Since the same finishes are available on both, the finish is not the deciding factor, but it does look different on each silhouette. Brushed palladium on the Ligne 2 has a cool, architectural quality; on the Slim 7 it reads as almost minimal. Yellow gold warms the Ligne 2 into an object of some grandeur, while on the Slim 7 it stays discreet, a line of warmth rather than a statement. Lacquer on the Ligne 2 shows its depth across a broad surface; on the Slim 7 the depth is concentrated into a narrower field and the effect is more jewel-like. Guilloché, with its fine engraved pattern, rewards the larger canvas of the Ligne 2 but is by no means wasted on the slimmer piece.
The practical advice is to choose the silhouette first and the finish second, and to look at the finish on the actual model rather than on a photograph of the other one.
Which to buy first
If this is a first Dupont and it is to be the only one for some years, the Ligne 2 is the safer recommendation. It is the reference, it carries the sound, and it is the piece that most fully expresses what the maison does. If it is to be a daily companion for someone who already values discretion over display, or who has a lighter for the table and needs one for the pocket, the Slim 7 is the better buy and will be used far more often than a second Ligne 2 would.
Either way, the sensible course is to hold both before deciding. As an authorized S.T. Dupont reseller, El Laguito Cigars keeps the two side by side for exactly that reason, and we are glad to let the hand settle the question that the page can only frame.