When it comes to ultra-slim luxury lighters, S.T. Dupont has long set the benchmark. The Slim 7, launched in 2015, earned its place as the world’s thinnest luxury lighter. Fast-forward to 2023, and the brand introduced the Slimmy — a modern evolution that reinterprets the Slim 7’s extreme thinness while addressing demands for better cigar performance. In this comparison, we explore how the Slimmy builds on — and improves upon — the Slim 7’s legacy.
Dimensions and Portability: Slim 7 Still Holds the Crown
The Slim 7 measures an astonishing 7 mm thick, stands 67 mm tall, 37 mm wide, and weighs just 45 grams. This record-breaking thinness made it virtually disappear in a pocket, earning praise as the ultimate discreet carry.
The Slimmy comes close at 9 mm thick, with the same height (67 mm) and width (37 mm), but weighs around 66 grams in standard lacquer models (slightly more in diamond-head variants). While not quite as feather-light or razor-thin as the Slim 7, the Slimmy remains exceptionally portable — easy to slip into slim pockets, travel cases, or formal wear without adding bulk.
Winner for pure thinness: Slim 7.
Winner for practical everyday carry: Slimmy (better balance and grip).
Flame Type and Cigar Performance: The Big Upgrade
Both models feature a single flat blue torch flame, wind-resistant and ideal for outdoor use. The Slim 7’s flame is wide (around half an inch) and cascading, delivering even toasting and reliable lighting for cigars.
The Slimmy takes this further with a deliberately engineered flat torch flame measuring approximately 1 cm (0.39 inches) wide. This broader coverage excels at quickly and uniformly toasting larger ring-gauge cigar feet, minimizing hot spots and providing faster relights. The flame is powerful, adjustable, and precise — a direct response to cigar enthusiasts requesting a torch version of the iconic Ligne 2 design.
Clear advantage: Slimmy offers superior cigar-specific performance.
Design, Ignition, and Features
The Slim 7 uses a side-mounted igniter with a clean, minimalist look that emphasizes extreme flatness.
The Slimmy adopts a side-squeeze ignition (no flip-top lid or roller), keeping the profile slim while delivering smooth, one-handed operation. It draws heavily from the Ligne 2’s classic shape but adds modern touches like reflective nozzle guidance and inversion safety. Finishes are more varied and vibrant in the Slimmy line, including glossy lacquers (black, sky blue, coral, white, burgundy), diamond-head guilloché (chrome/gold), and special editions (Fender, zodiac themes).
The Slimmy’s compact fuel tank requires more frequent refills, and flame adjustment often needs a small tool — minor trade-offs for its enhanced design and performance.
Build Quality, Price, and Availability
Both lighters showcase S.T. Dupont’s legendary craftsmanship: durable metal construction, fingerprint-resistant lacquer, and meticulous hand-finishing. The Slim 7 is now discontinued or harder to find new, often appearing on secondary markets. The Slimmy remains current (as of January 2026), with strong availability and ongoing limited editions.
Pricing starts around $300–$350 for standard Slimmy lacquer models, with premium variants up to $370–$450.
Final Verdict: The Natural Evolution
The Slim 7 remains the undisputed king of extreme thinness — a true engineering marvel from 2015.
The Slimmy represents thoughtful evolution: it sacrifices just 2 mm of thickness to deliver a wider, more cigar-optimized flat torch flame, modern ignition, richer finish options, and the Ligne 2-inspired aesthetic many fans craved.
If maximum pocket discretion is your only priority, seek out a Slim 7.
For today’s cigar enthusiast who wants the best blend of slimness, performance, style, and availability — the Slimmy is the clear modern choice.
S.T. Dupont continues to prove that true luxury evolves without losing its heritage.
