When Elektra is in the weapon room she pauses a moment in front of a pair of sai. Sai are her weapon of choice in the comic.
Elektra's red costume is much closer to her costume from the comics.
The longest cold open of any Marvel Netflix shows. The titles don't start until 13 minutes in.
As Elektra sorts through her master's swords, shelved behind her is a spiked sword resembling the Zabimaru weapon from the anime series Bleach (2004).