Testing Zwipe Fingerprint Card
By embedding a fingerprint reader into an access control card, Zwipe claims it can increase security without requiring facilities to new / expensive fingerprint readers.
Zwipe is a contactless credential [link no longer available] that combines a standard 125 kHz or 13.56 MHz formats with an onboard fingerprint reader. In order to read the contactless credential information, a user must scan a valid finger to turn it on. Essentially the credential becomes multi-factor, rather than the reader, and can improve security without requiring reader or panel replacement.
We profiled Zwipe in an earlier note, fresh off a $3.5M VC raise, when the company was finalizing design and production details. In this note the final production product is reviewed.
Evaluation Video
In the clip below, we demo Zwipe and compare it to traditional CR80-size credential cards:
Overall performance is mixed, with some users/fingers requiring multiple reads before a valid print is read, activating the card. Physically, Zwipe is the same overall size as a normal card, but is significantly thicker and rigid.
After a valid read is made however, performance is similar to other contactless credentials. Zwipe supports leading card formats like iClass, HID Prox, MiFARE, and DESFire [link no longer available], and operates with existing readers with no changes needed.
Key Specifications
One Finger Only: Unlike many standalone print readers, Zwipe cards support only one fingerprint to activate. Each finger is enrolled ten times, with slight variations on position recommended to increase read success.
LED Feedback: The card has two LEDs that give the user feedback on the success/failure of a print read or when being enrolled for use.
Battery Powered: Zwipe uses a CR-2032 size coin cell battery that is commonly available on the street. Zwipe claims a fresh battery is good for 4,000 fingerprint reads, which for a card used six times per day is about 1.5 years.
Water Resistent, not Water-Proof: Unlike a typical fob or card that is bonded together, Zwipe is similar to a clamshell composed of glued halves. The card itself is prone to damage if submerged in water or can be broken if bent. Zwipe recommends cards be 'treated like cellphones', in contrast to the normal exposed and rugged environments cards are normally used/stored in.