Quick Answer
Start with a dildo around 1 to 1.5 inches in diameter and 5 to 7 inches in insertable length, especially if you're new to penetration. Choose a shape that matches your target sensation—curved for G-spot, tapered for gradual entry, or smooth and straight for thrusting—and always prioritize body-safe silicone.
Choosing your first dildo—or adding to a collection—comes down to more than just picking something that looks appealing. Size, shape, and material all affect how the toy feels, how easy it is to insert, and whether it hits the spots you're aiming for. The good news: you don't need to guess. A few simple measurements and honest answers about your experience can point you to the right fit.
This guide walks you through the key decisions—length, girth, shape, and features like suction cups—so you can shop with confidence. We'll also highlight a couple of VUSH options that illustrate the range, from a budget-friendly non-vibrating dildo to a flexible beginner plug.
Start with Girth, Not Length
When people ask about dildo size, they often focus on length. But girth—the thickness or circumference—is what determines how challenging insertion feels. A toy that's too wide can cause discomfort, while one that's too thin may not provide the full sensation you want.
For beginners, aim for a diameter around 1 to 1.25 inches (about 3.1 to 3.9 inches in circumference). If you're experienced, you can go up to 1.5 inches or more. Always check the product's diameter, not just its total length, because that's the number that matters most for comfort.
- Measure your own comfort: if two fingers feel comfortable, a dildo of similar width is a good starting point.
- Remember that softer materials feel wider than they measure, so a squishy toy may be more forgiving.
Length: Think Insertable, Not Total
Dildos list both total length and insertable length. The insertable length is what actually goes inside you, and that's what you should compare. For most people, 5 to 6 inches of insertable length is plenty—the average vaginal canal is about 3 to 5 inches deep, and the cervix sits at the end. Going longer doesn't mean better; it can actually be uncomfortable if you hit your cervix.
If you're new to penetration, a 5- to 6-inch insertable length is a safe bet. If you're more experienced or want deeper sensation, look for 7 inches or more, but always pair that with a comfortable girth.
- Don't be intimidated by a long total length—check the insertable measurement on the product page.
Shape: Match It to Your Goal
Dildo shape affects how the toy stimulates different areas. A curved dildo is designed to reach the G-spot or prostate, while a straight, smooth shape is better for thrusting and general stimulation. Tapered tips allow for easier insertion, especially for beginners, while bulbous heads provide fuller sensation once inside.
Consider what you're trying to achieve. If you're exploring for the first time, a simple, straight or slightly curved shape with a tapered tip is forgiving and versatile. If you know you enjoy G-spot or prostate stimulation, look for a pronounced curve that you can angle toward that spot.
- A curved toy is easier to angle for targeted stimulation—experiment with different positions to find what works.
Material and Flexibility: Silicone Is a Safe Bet
Body-safe materials are non-porous, free of phthalates, and easy to clean. Silicone is the gold standard: it's firm enough for pressure, soft enough for comfort, and works with water-based lubricant. Other materials like TPE or jelly can be porous and harder to sanitize, so check the label.
Flexibility also matters. A firm dildo provides more intense pressure, while a flexible one bends with your body and is easier to insert, especially for beginners. The Soos Non Vibrating Dildo - 6.6" is a great example: it's 100% silicone with a squishy, flexible body, making it forgiving for those new to penetration.
- Always use water-based lube with silicone toys—silicone lube can degrade the material.
Features That Change the Experience
Beyond size and shape, consider features like suction cups, vibrations, and texture. A suction cup base allows for hands-free play and mounts on smooth surfaces, which is great for solo or partnered exploration. Non-vibrating dildos are quiet, require no batteries, and let you focus on the sensation of fullness and movement.
If you're not sure you want vibration, a non-vibrating toy is a low-cost way to figure out what you like. The Soos is a budget-friendly option at $13.50, and its strong suction cup base adds versatility. For those who want to combine penetration with anal play, a small plug like the Zeder Butt Plug - Small offers a conical design that's a good starting point.
Zeder Butt Plug - Small
- A suction cup base isn't just for hands-free play—it also makes cleanup and storage easier.
Decision Rules for Choosing Your Dildo
- If you're a beginner: Choose a dildo with a diameter of 1 to 1.25 inches and an insertable length of 5 to 6 inches. Look for a tapered tip and a flexible, body-safe material like silicone. Start small and squishy—comfort beats intensity when you're learning.
- If you want G-spot or prostate stimulation: Pick a curved dildo that you can angle toward the anterior vaginal wall or prostate. A firm material helps maintain the curve's pressure. Curved shapes are your friend—experiment with angles to find the spot.
- If you want hands-free play: Choose a dildo with a strong suction cup base that can mount on smooth surfaces. This frees your hands for other stimulation or partner play. A suction cup adds versatility without complicating the toy.
Products That Show the Range
- Soos Non Vibrating Dildo - 6.6": 100% silicone with a squishy, flexible body and strong suction cup base, no batteries needed. Its flexibility and silicone material make it a forgiving choice for beginners, while the suction cup adds hands-free options.
- Zeder Butt Plug - Small: A classic conical design for incremental exploration, available in three sizes; Small is a good starting point for beginners. If you're also exploring anal play, a tapered plug like this helps you practice gradual insertion with a safe, non-intimidating shape.
Who Should Choose What
Best for
- Beginners who want a forgiving, non-intimidating introduction to penetration.
- People who prefer quiet, battery-free play and want a versatile toy that works for solo or partnered sessions.
Not for
- Experienced users who know they need a larger girth or a firmer, more intense toy.
- Anyone specifically seeking vibration—choose a vibrating dildo or add a separate vibrator.
Choosing the right dildo comes down to understanding your body and being honest about your experience. Start with a size that feels comfortable, choose a shape that matches your goals, and always prioritize body-safe materials. With the right fit, you can explore new sensations with confidence—and have fun along the way.
