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The Guide to SY Doll
SY Doll was founded in 2015 and, with years of hands-on experience, has become a seasoned doll manufacturer. While their prices may not always be the lowest, their outstanding value easily rivals most brands in the industry.
Over the years, SY Doll has crafted countless silicone and TPE dolls and developed many exquisite head sculpts, all while placing a strong emphasis on technological innovation and introducing a host of fascinating features.
SY Doll Authorization
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Brand Features
Head
SY Doll has developed a wide range of female heads, primarily focusing on realistic Caucasian styles, while also offering select realistic Asian and African head designs.
In addition to realism, SY Doll has explored fantasy aesthetics, creating several imaginative head sculpts including 2.5D and non-human styles.
Moreover, SY Doll has also developed three male head models.
SY Doll Head Type Selection:
Note: The S-series heads are available as either TPE heads or hard silicone heads. TPE heads have oral functionality but do not have a realistic oral structure, while hard silicone heads do not have oral functionality. The M-series heads are soft silicone heads and have a realistic oral structure.
----------Featured Head----------
1.The Pitiful Little Head
This head (#291) features adorable facial features, and her drooping eyebrows and eyes give her a look of grievance and playful. Her expression makes her appear more lifelike and endearingly lovable.
2.The Smiling Head
This head (S8) has a sweet smile and big eyes, giving her an exceptionally gentle appearance. She looks like someone waiting for their loved one at home, ready to greet you with a tender smile when she sees you.
3.The Animal-Inspired Heads
SY Doll has released two animal-inspired heads (S32 and M42) that cleverly incorporate certain animal features in their design, making them especially unique and adorable.
Although other brands have also launched animal-inspired heads, the degree to which they integrate animal elements varies. Because of this, the S32 and M42 heads stand out as truly distinctive.
Body
----------Female Doll Body----------
In terms of height: The selection range is very broad, from 148 cm to 176 cm.
In terms of body type: There are dolls with well-proportioned figures ranging from slender to BBW, as well as some with more exaggerated large busts.
In terms of bust: Dolls are available from cup size A up to cup size N.
----------Male Doll Body----------
Currently, SY Doll has released three male doll bodies: two TPE bodies (162 cm and 168 cm) and one silicone body (160 cm).
TPE bodies display (162 cm on the left, 168 cm on the right):
Silicone Body Display:
----------Featured Body----------
1.Pregnant Bodies
SY Doll offers two pregnant bodies: 158 cm-B cup and 158 cm-F cup.
The 158-B model features a smaller belly, resembling the shape of pregnant dolls from some other brands. In contrast, the 158-F model has a larger belly and bust, more closely reflecting the appearance during pregnancy. This model is especially unique because large-belly pregnant bodies are uncommon on the market.
2.BBW Bodies
SY Doll has released several BBW dolls, each with its own unique characteristics.
Notably, three bodies stand out for their particularly full legs: 148E, 157-J, and 163-I. They boast impressive hip and thigh measurements, showcasing visually striking curves. At the same time, their bust-to-waist ratios vary, offering users a wider range of choices.
Next is a body with abdominal fat: the 165-F. While she has noticeable belly fat, her limbs are not bulky, making her figure quite rare.
3.Non-Muscular Male Doll Body
Several brands have released male doll bodies, but these typically feature well-defined muscles and a very athletic build.
SY Doll’s male doll body is different — it lacks prominent muscle contours and has softer, rounder lines. This design makes it especially distinctive and unique.
Features
I personally feel that most of the dolls developed by SY Doll have an animalistic vibe. They have released many dolls with features inspired by cats, foxes, and other animals. The facial designs carry a sense of spirit and wildness, making them very captivating.
SY Doll Options & Functions
Material Options
SY Doll offers dolls made from TPE TPE dolls are soft and flexible, relatively more affordable, and easier to repair when damaged. However, they are less refined than silicone dolls and generally have a shorter lifespan. and silicone. Silicone dolls are more realistic and durable, with a long lifespan and excellent resistance to heat and pressure. However, silicone is more expensive, slightly less soft, and difficult to repair if damaged.
TPE Doll Display：
Silicone Doll Display:
Skin Color Options
SY Doll offers 7 skin color options for TPE dolls and 4 skin color options for silicone dolls.
TPE doll skin color options:
Silicone doll skin color options:
Skeleton Options
----------Skeleton Options----------
SY Doll offers options for a standard skeleton and a yoga skeleton.
The standard skeleton is the default option. It has fewer joints and a relatively limited range of motion.
The yoga skeleton adds multiple joints at the collarbone area, allowing the doll to perform shoulder shrugging movements, and features double-joint structures at the elbows and knees to enhance limb flexibility and range of motion. These upgrades enable the doll to perform various yoga poses and positions. This option is ideal for those who want to explore different poses and create dynamic, lifelike experiences.
Standard Skeleton & Yoga Skeleton:
Poses Supported by the Yoga Skeleton:
----------Neck Skeleton Upgrade----------
SY Doll has upgraded their neck skeleton.
Previously, SY Doll used a spiral spring rod structure for the neck, which relied on a coiled metal rod for support. The range of motion was limited. Additionally, because the skeleton relied on elastic support, its stability was relatively poor.
The upgraded skeleton uses a pivot structure, allowing the head to rotate flexibly in all directions — forward, backward, left, and right. With screw joints controlling the movement, it provides a certain locking force, thus offering improved stability.
Neck Skeleton Comparison
Finger Options
SY Doll offers options for copper wire fingers and articulated fingers.
----------Copper Wire Finger----------
Copper wire fingers Copper wire fingers have no joints and cannot grasp objects. are the default option provided by SY Doll.
SY Doll’s copper wire fingers have recently been upgraded.
The previous copper wire fingers used thinner metal wires, making the fingers overall too soft and lacking sufficient support. Additionally, the overly thin fingertip structure was prone to piercing through the fingers during use.
The upgraded copper wire fingers have been structurally reinforced with thicker wires. Each finger uses a covered metal core design and is equipped with a rubber protective cap at the fingertip, effectively preventing punctures through the silicone skin. Additionally, the entire skeleton is wrapped with a thick woven protective layer, greatly enhancing flexibility and durability. As a result, finger poses are more stable and less prone to deformation.
----------Articulated Finger----------
SY Doll offers articulated fingers as an option.
The articulated fingers feature independent joint designs inside, allowing them to mimic the bending and stretching motions of real fingers, resulting in more natural and smooth movements. The hinged structure uses mechanical joints to securely hold finger positions, making them less prone to deformation or loosening from repeated bending.
Breast Type Options
SY Doll offers three types of breast options:
Tips:
1.Softness levels of the three breast types: Gel > Hollow > Solid. If you prefer softer and more realistic breasts, we recommend gel breasts.
2.Gel breasts are not recommended for extra-large bust dolls due to their heavy weight, which can cause sagging and tearing.
M Series（ROS Head）
In 2024, SY Doll launched the M-series products — soft silicone heads with ROS functionality. These heads feature realistic oral structures and movable jaws that simulate natural mouth opening and closing, enhancing interaction and realism.
ROS Function Display:
Note: Only the M-series features the ROS function.
Removable leg option
SY Doll offers a Removable Leg option, dividing the doll’s legs into upper and lower sections at the mid-thigh. The connection features a spiral structure similar to a screw mechanism, allowing for easy assembly and disassembly while ensuring a secure and stable fit. This design not only improves convenience for transportation and storage, but also provides greater flexibility for use and maintenance.
Removable Leg Display:
Oral Sucking Function
Oral Sucking Function Display：
Note: The Oral Sucking Function is only available for M-series heads.
Oral Heating Function
SY Doll offers an Oral Heating Function, which simulates human oral temperature (around 36–37°C) through heating. The warm sensation provides a more realistic, life-like experience.
Breathing Function
This function features a highly realistic breathing device that uses internal micro air sacs and a motor to simulate the rise and fall of human breathing. The chest gently moves with each rhythm, creating a natural breathing effect that closely mimics a real person.
Breathing Function Display:
Auto-BJ Function
SY Doll offers an Auto-BJ Function, which simulates realistic oral movements by controlling the doll’s neck to create a natural back-and-forth motion.
Auto-BJ Function Display：
Auto-BJ Function User Guide:
Note：
1. This function is not compatible with dolls that have hard silicone heads, as hard silicone heads do not support oral functions.
2. This function is not suitable for SSBBW dolls, as their heavier body weight may cause the motion to be very slow and could easily damage the motor.
E-hips Function
E-hips Function Display：
E-hips Function User Guide：
Note: This function is not suitable for SSBBW dolls, as their heavier body weight may cause the E-hips motion to be very slow and could easily damage the motor.
Auto-Sucking Vagina Function
Auto-Sucking Vagina Function Display :
Note: The doll in the video features both the breathing function and the Auto-Sucking Vagina Function.
Auto-Sucking Vagina Function User Guide:
Note: This function is only compatible with dolls that have a fixed vagina.
Three-In-One Function
The three-in-one function includes E-hips, Auto-BJ, and Auto-Sucking Vagina.
Currently, the bodies that support the three-in-one function are:
Heating Function
SY Doll offers a smart heating function equipped with a display screen that shows the doll’s heating temperature in real time.
Note: We do not recommend this function for SSBBW dolls, as their larger body size results in minimal noticeable heating.
Moaning Function
Moaning Function Display：
Automatic Penis Insertion Function（Male Doll）
SY Doll has launched a silicone male doll body, which can be equipped with the Automatic Penis Insertion Function.
Automatic Penis Insertion Function Display 1:
Automatic Penis Insertion Function Display 2：
SY Doll Factory Photos
