Greek Mythology vs. Now
Aphrodite was the greek goddess of beauty. She and Venus were very similar, and often compared because they are both goddesses of beauty.
Venus Shavers are related to Venus the goddess because Venus is the goddess of beauty and the shaver is made to "make you feel like a goddess" being a beauty product.
Venus today is known as a greek goddess and also as a shaver. A beauty project made to “make you feel like a goddess”. Since Venus was comparable to Greek goddess Aphrodite , goddess of beauty, they then created a “beauty” product named after Venus.