Tactile:

Silicone: Usually has a smoother, softer feel. Silicone has a more delicate texture and has a feel similar to real skin.
TPE: May be relatively softer, with a feel closer to real skin, but may not be as smooth as silicone.

Odor:

Silicone: Generally speaking, silicone dolls are less likely to give off unpleasant odors.
TPE: Sometimes TPE products may have some rubbery or chemical odors.

Color Stability:

Silicone: Color resistant, colors do not fade or change easily.
TPE: In some cases, TPE may be more sensitive to certain dyes and the color may be relatively less stable.

Weight:

Silicone: Due to the higher density of silicone, it may be heavier for the same volume.
TPE: Relatively light and may be lighter for the same volume.

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