Hermès Constance 18 vs. 24: Size guide [2026 updated]

The Hermès Constance 18 and Constance 24 share an iconic design but differ primarily in size and function. The Constance 18 is a compact, minimalist bag best for evenings or carrying only essentials, measuring 7.1 inches across, while the 9.4-inch Constance 24 offers more generous capacity for daily use without sacrificing its elegant structure.

Here's everything you need to know to decide which size of this classic Hermès bag is right for you.

Hermès Constance 18

The Constance 18 is the smallest and most refined size in the regular lineup, designed for those who value a sleek silhouette and travel light. Its compact proportions make it an ideal choice for formal events, dinners, and occasions where you only need your absolute essentials like a phone, keys, and a cardholder. The clean lines and signature 'H' clasp shine in this petite form, functioning as both a bag and a statement accessory.

• What it is: A compact, structured shoulder bag with an elegant profile, often used as an evening or special occasion bag.
• Key features: Signature Hermès "H" clasp as the closure, adjustable leather strap for shoulder wear, and a streamlined interior. Its approximate dimensions are 7.1" L x 4.3" H x 1.6" D.
• Price: Highly variable based on materials, but generally upwards of $8,000. Price is confirmed at time of boutique purchase.
• Materials/Construction: Crafted from premium leathers like Epsom (known for structure and durability), Swift (soft and smooth), and exotic skins.
• Pros: Lightweight and easy to carry. Sleek profile is perfect for formal attire. Acts as a sophisticated statement piece. Retains its value exceptionally well.
• Cons: Limited capacity means it can't hold much beyond a phone, keys, and a very small wallet or cardholder. Not practical for daily use. Exceptionally difficult to acquire directly from a boutique.

This size provides an elegant, minimalist look for those seeking a highly sophisticated bag for special occasions or evening wear.

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Hermès Constance 24

Slightly larger, the Constance 24 strikes the perfect balance between daily functionality and the iconic elegance of the design. This size offers enough space for everyday necessities, including a larger wallet, sunglasses, and a few makeup items, making it much more versatile. It maintains the same beautiful structure and clean lines as its smaller sibling but proves more practical for daily life, transitioning from an office setting to dinner with ease.

• What it is: A versatile and functional luxury shoulder bag suitable for both daily use and dressier occasions.
• Key features: The same signature "H" clasp and adjustable shoulder strap as the 18, but with a more spacious interior. Approximate dimensions are 9.4" L x 5.1" H x 2.4" D.
• Price: Starts around $10,000, depending on the material and hardware configuration, with prices confirmed at boutique purchase.
• Materials/Construction: Available in the same range of Hermès's finest leathers, such as Clemence (a soft, grainy hide), Epsom, Togo, and others.
• Pros: Spacious enough for daily essentials. Versatile enough for both day and night use. Powerful but still elegant presence. An excellent luxury investment.
• Cons: More substantial size may feel too large for strictly formal events. Like all highly sought-after Hermès models, acquisition is very difficult.

This bag is for someone who wants the timeless style of the Constance but needs the practicality and capacity for their daily routine.

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Hermès Constance 18 vs. Constance 24 Comparison

Capacity & Dimensions

The most important distinction is carrying capacity. The Constance 18 measures 7.1" x 4.3" x 1.6", which realistically fits a smartphone, credit cards or a small cardholder, a key, and a lipstick. It is designed for the absolute bare essentials and forces a minimalist approach.

In contrast, the Constance 24, at 9.4" x 5.1" x 2.4", offers significantly more room. It can comfortably house a larger wallet, a phone, keys, sunglasses in a soft case, and a small pouch for touch-up makeup. The extra 2-3 inches in length and nearly an inch in depth makes it far more suited to the demands of a full day out.

Versatility & Occasion

Due to its petite size, the Constance 18 is primarily an evening bag. It's the perfect companion for weddings, gallery openings, cocktail parties, and formal dinners. While it can be styled for daytime, its limited capacity makes that challenging for most people.

The Constance 24 is a true chameleon. It's sophisticated enough for a business lunch or a professional setting, practical enough for weekend shopping, and elegant enough for a nice dinner. For those seeking one Hermès bag to serve multiple purposes, the 24 offers substantially more flexibility than the 18.

On-Body Look & Style

The two sizes create very different impressions when worn. The Constance 18 has a dainty, cross-body or shoulder-slung appearance that acts more like an accessory or a piece of jewelry. On taller frames, it can look quite small.

The Constance 24 has a more substantial presence. It looks like a proper handbag and provides more visual impact. The size is universally flattering and functions well on most body types without being overwhelming, making it a classic and balanced choice for a shoulder bag.

Which One Should You Choose?

Both bags are exceptional pieces of craftsmanship, so the choice comes down entirely to how you plan to use the bag.

Choose the Constance 18 if:

• You are looking for an elegant bag primarily for evenings and formal events.
• You typically carry only a phone, keys, and a cardholder.
• You prefer smaller bags that serve as a delicate accessory to your outfit.
• You already have a collection of functional daily bags and want a unique, special-occasion piece.

Choose the Constance 24 if:

• You need a versatile luxury bag that transitions seamlessly for day-to-day use.
• You want to carry more than just the essentials, like sunglasses or a small cosmetic pouch.
• You are looking for your first - or only - Hermès Constance and want maximum usability.
• You prefer your bags to have a more prominent presence and serve as a central part of your look.

Frequently Asked Questions

What's the main difference between the Constance 18 and 24?

The sole functional difference is size. The Constance 18 measures 7.1 inches across and is ideal for evenings with minimal essentials, while the Constance 24 measures 9.4 inches and serves as a more versatile, everyday bag.

Can a Hermès Constance 18 fit a phone?

Yes, the Constance 18 can typically fit most standard-sized smartphones. However, it will leave very little room for much else, especially if you have a bulky case on your phone.

Which Constance is a better everyday bag?

The Constance 24 is undoubtedly the better choice for an everyday bag. Its larger capacity is designed to hold daily necessities that simply will not fit into the Constance 18.

Which size is more popular?

Both sizes are incredibly popular and difficult to find. The Constance 24 might have a slight edge in general demand due to its superior versatility, making it a more practical choice for a wider range of people.

Can the Hermès Constance be worn as a crossbody?

Yes, the adjustable strap on both sizes often allows for crossbody wear, although this depends on your torso length and personal preference. Some find it sits higher on the hip when worn across the body.

Are Hermès Constance bags a good investment?

Yes, like many classic bags from Hermès, the Constance holds its value exceptionally well and often appreciates over time, especially in classic colors and durable leathers.

How difficult is it to buy a Constance?

The Constance is one of Hermès's most sought-after bags, making it extremely difficult to purchase directly from a boutique. There is no waitlist, these bags are offered to established clients.

How does the Constance compare to a Kelly or Birkin?

The Constance is a structured shoulder bag with a set strap and a large 'H' clasp. Unlike the Birkin or Kelly, which are top-handle bags (though the Kelly has a removable shoulder strap), the Constance offers a more streamlined, hands-free ease-of-wear and has a bolder, more graphic hardware statement.