Do I need to purchase SIM card separately? Customer Support July 31, 2021 04:26 Updated Follow No, our Pocket WiFi does not require a separate SIM card. Related articles Can I use VoIP apps? e.g. Skype, LINE, Whatsapp,... Are there any settings required for the Pocket WiFi? How do I charge the device? Comments 0 comments Please sign in to leave a comment.