Picking the Right Dildo Is Less Complicated Than It Seems
Pick up a dildo and you'll notice something odd. The thing that's supposed to be the simplest part of the equation, the thing going inside your body, is the part people argue about the most. Size. Material. Shape. Firmness. Some product pages read like a chemistry exam. Others read like they were written by a poet who's never touched silicone.
That's the advantage. A dildo is a dildo. It doesn't have a battery to charge, an app to pair, or a warranty that requires filling in a form in triplicate. What it is and what it does depends on a few practical factors, and we're going to work through them without the marketing varnish.
There is no single best dildo. There's only the one that works for your body, your experience level, and what you're after. The sections below walk through each factor so you can make a choice that actually makes sense.
How You Plan to Use It
This is the factor that determines everything else, and it's the one people skip. Before you even look at individual products, decide the primary way you'll be using the dildo. That decision narrows down the features that matter and saves you from getting sidetracked by specs you don't need. "Mostly vaginal" or "mostly anal" is enough. If you want something that does both, that's fine too. Just be honest with yourself about what you'll actually use it for, not what sounds impressive at a dinner party.
Vaginal use? Keep length, girth, and curvature in mind. Some people prefer a straightforward straight shape. Others find a slight curve more effective since it naturally reaches the G-spot area. A gentle curve may suit beginners. A sharp bend can be uncomfortable if you're not used to it.
Anal use requires different considerations. Anal toys need a flared base or reliable retention feature for safety, and the shape may differ from a vaginal dildo. Some dildos work for both purposes, but many are specialised for one or the other. Always check the manufacturer's guidance before mixing purposes. The flared base requirement is non-negotiable. No exceptions.
Strap-on play? If you're using a dildo with a harness, you'll need something designed for that. Look for a flared base or a waist designed for secure harness fitting. Not all dildos work in all harnesses, and the mismatch between a dildo shape and a harness design is more common than you'd think. Check the harness manufacturer's compatibility list before buying a dildo.
Size: The Most Confusing Part
Size is the great dildo debate. And honestly, it's confusing because manufacturers use inconsistent measurement standards. One product measures diameter. Another measures circumference. A third just says "standard size" and hopes you don't ask questions.
Here's what actually matters:
Girth (circumference). Girth determines how a dildo feels in use. A thicker dildo will feel more stimulating but also more stretching, which can be uncomfortable if you're a beginner. Begin with a size that feels manageable for you based on personal comfort and prior experience. Product listings may use diameter, circumference, or girth, and insertable length, these are different measurements, so compare like with like.
Length may be less critical than girth for some people. The insertable length shown on the product listing is the most reliable measure of what will be comfortable. If a dildo is significantly longer than your body needs, the excess can feel cumbersome. Length becomes more important for strap-on play or for longer sessions.
For anal use, girth and length both matter more than for vaginal use. For anal play, the toy needs a flared base or reliable retention feature for safety, and you should follow the product's own dimensional guidance and choose a size that feels manageable. The anal canal does not self-lubricate the way the vagina does, and the tissues are more delicate. Starting with a modest size and working your way up is the only sensible approach. The body is not a challenge mode video game. There is no trophy for starting with the biggest size on the shelf.
Size preferences are deeply personal. Some people find larger sizes more stimulating. Others prefer something modest. There's no shame in starting small and working your way up, or in sticking with a size that feels good regardless of what other people use. Your body, your preference, your dildo. People online will tell you what works for them. Their body is not your body. The size that works for them might be the wrong size for you. That's not a failure.
Straight, Curved, and Textured Shapes
A dildo's shape affects where and how it stimulates. A practical breakdown:
Straight dildos are the simplest design. They go in and come out in a straight line. They work well for people who prefer a consistent sensation without targeting specific internal areas. Harness compatibility is interface-specific and varies by product. A straight dildo works well for general use, and a gentle curve may be better for people who enjoy G-spot stimulation. If you are buying your first dildo and you can only buy one, a straight shape is one option, but the right choice still depends on your intended use and preferences. A straight dildo is the "white t-shirt" of the dildo world. It works in almost any situation.
Curved dildos follow the natural curve of the vaginal canal and target the G-spot area. If internal stimulation of that area is what you enjoy, a curved dildo may be preferable to a straight one. Look for a gentle curve rather than an aggressive one if you're a beginner, a sharp bend can be uncomfortable or even painful if you're not used to it. Different bodies and preferences mean that some people find curved shapes more stimulating, while others prefer a straight design. Individual experience varies. A curved dildo works best when you angle it correctly and let the curve do the work.
Double-ended dildos have a head at both ends and can be used by two people simultaneously or by one person for dual stimulation. They tend to be longer and less versatile for solo use, but they're popular in couples' play. If you want something flexible enough for different kinds of use, a standard single-ended dildo might be more practical.
Textured dildos feature ridges, bumps, or other surface patterns designed to provide additional sensation. Texture can be enjoyable, but it's also more demanding, textured toys work best with generous lubrication and can be harder to insert quickly. A smooth dildo is a practical primary choice; texture can be added later. Texture is a luxury, not a requirement. Think of it like adding spice to a dish. A smooth dildo is a well-cooked meal. A textured dildo is that meal with extra chilli. Neither is better.
Soft vs Firm Designs
Dildos span a range of firmness levels, and the difference is quite noticeable. Some are firm and rigid. Others have a noticeable give.
Firm dildos deliver a consistent, unyielding sensation. They're great for people who like a strong, full feeling and for harness play because they hold their shape. Rigid materials like glass and metal are always firm. A firm dildo will not bend when you push against it. They are also easier to position correctly because they maintain their shape under pressure.
Soft dildos flex and bend, which can feel more comfortable for extended use or for beginners who are sensitive to stretch. They're also more forgiving if you shift into an unexpected direction. However, very soft dildos may bend too much for some people to feel effective internal stimulation. There's no universally safest option, and firmness is preference-dependent.
Medium firmness strikes a balance. Many silicone dildos sit in this range, firm enough to provide satisfying internal pressure, but with enough flexibility to feel comfortable. If you're unsure, consider trying a moderate firmness first. Many silicone dildos fit here. Medium firmness is common among silicone products, but the right firmness depends on your individual preference.
Don't assume that "soft" means "less intense" and "firm" means "more intense." A firm dildo can feel less stimulating if it doesn't move with your body, while a softer dildo can feel more natural and comfortable even if the intensity is different. Fit matters more than brute strength.
Silicone, Glass, and Other Materials
A dildo's material affects how it feels, how you clean it, how you store it, and what kind of lubricant you should pair it with. Here are the most common options:
Silicone dildos come in many firmness levels and designs. Many quality silicone products are non-porous and straightforward to clean, but follow the specific manufacturer's care instructions. Water-based lubricant is a broad-compatibility starting point, but check both the toy and lubricant instructions before use to confirm compatibility. Choose firmness, weight and shape according to the intended use and personal preference. You can explore silicone dildos and other options by browsing our collection. Quality silicone is generally durable and easy to clean, but material lifespan depends on the specific product, care, and usage. Check the material specification carefully if you have known allergies.
Glass dildos are rigid and do not flex. Weight, surface finish, temperature characteristics and care requirements vary by product. Check the manufacturer's material, cleaning, temperature-use and handling instructions before use. How a glass product feels depends on its individual design and personal preference. See our glass dildo collection for options. Some glass products can be safely warmed or cooled, following the manufacturer's temperature guidance. Use warm (not boiling) or cool (not frozen) water, and avoid extreme temperature changes. Not all glass products are designed for the same temperature range, so check the specific product instructions. Running a glass dildo under boiling water and then putting it inside you is not a good idea. The manufacturer's temperature guidance exists for a reason.
Stainless steel products are rigid and can be relatively heavy depending on size and construction. Surface finish, weight, temperature characteristics and care requirements vary by product. Like glass, steel can be used with temperature play. The weight of a steel dildo is another consideration. Some people enjoy the extra weight for a feeling of fullness. Others find it too heavy.
TPE and similar materials are softer and more flexible. They can feel more body-like than harder materials. Non-porous status varies by product and formulation, so check the manufacturer's care and cleaning instructions carefully. Porosity and care requirements vary by formulation. Follow the manufacturer's cleaning instructions. If sharing a product where hygiene is a concern, use an appropriate fresh barrier where suitable and follow the product manufacturer's guidance. TPE dildos can be an affordable option, and some find the material feels close to skin. If you are new to dildos and want something that feels realistic without spending a lot, TPE is a good entry point, but follow the specific product's care instructions.
Material choice is personal. There's no universally "best" material. There's only the material that works for your preferences, your safety, and your cleaning routine. Follow the specific manufacturer's instructions. If you have sensitivities or allergies, check the material specification carefully. If sensitivities or allergies matter, check the exact listed materials and the manufacturer information for the specific product.
Lubricant Compatibility
Lubricant choice matters more than some people expect. Lubricant compatibility depends on the exact material and product. Water-based lubricant is often a practical starting point, but check both the toy and lubricant manufacturer's instructions. Oil-based lubricants can degrade some materials and are generally not recommended unless the manufacturer specifically approves them. Always check the manufacturer's lubricant recommendations for the specific dildo you're using, and follow the lubricant manufacturer's guidance as well.
Use enough lubricant, regardless of material. Dildos don't self-lubricate. A dry dildo is uncomfortable, not a rite of passage. Start with a generous amount and add more as you go. How much lubricant you need depends on the material, the sensation you want, and your own comfort, but it's always better to err on the side of more rather than less.
Comparing Actual Product Listings
When you're ready to compare options, look for specific, concrete information:
Material specification. What is it actually made from? Not "body-safe", that's marketing. Silicone, glass, steel, TPE? Be specific.
Dimensions. Length, girth, diameter. Compare like with like. A product that gives you insertable length and girth circumference is giving you the two measurements that actually matter for fit.
Shape description. Straight, curved, textured? What's the design for? A well-written product description will tell you not just what the dildo looks like, but what it's designed for.
Firmness. Does the listing say soft, medium, or firm? Or does it just say "realistic" and expect you to take their word for it? "Realistic" is not a firmness level. It's a marketing word that means "we don't want to tell you how firm it is."
Weight. Some dildos are heavy. Others are light. Neither is better. It's a preference.
Intended use. Vaginal? Anal? Both? Strap-on? The manufacturer should tell you. If they don't, it's a red flag.
Warranty and care instructions. A company that backs their product is worth considering. A warranty is the toy equivalent of someone saying "I mean what I said."
The Bottom Line
A good dildo is the one that fits your body, your experience level, and what you want from it. Start by deciding how you'll use it, then narrow down material, size, and shape according to that. The dildos and dongs collection and glass dildos collection list options you can compare, and our silicone vs glass dildos guide covers material differences in detail. If you're buying your first dildo and feeling overwhelmed, some people find a medium-firm silicone dildo in a modest size is a sensible starting point, but the right choice ultimately depends on your own preferences, anatomy, and intended use. You can always buy more specific toys once you know what you like. Your first dildo is not a life sentence. It's just the beginning of research.