Initial research into our target users indicated contrasting use cases. User #1 currently has a phone-wallet with a front-folding screen cover and an adhesively attached card holder on the back. User #1 expressed interest in maintaining additional screen protection with some sort of front-folding flap, keeping a wallet that doubles as a phone case, increased space for cards and cash, and having card storage encased rather than open. User #1 also suggested having a zipper-based approach to encasing the phone and extra storage.

In contrast, User #2 uses a thin, doubled-sided wallet pouch separate from the phone case. User #2 highly prefers the wallet separate from the phone case for a variety of reasons. User #2 expressed similar interests in increased storage, such as room for cash. User #2 also expressed mild interest also in incorporating some way to store keys.

Compiling the two users into a single list of requirements, we concluded our wallet needs:

1. Adaptability: The phone-wallet should be able to convert between a wallet, a phone case, and a hybrid of both. The user should be able to choose the functionality of the product. To satisfy both use cases, this feature is of utmost importance.
2. Storage: The phone-wallet should have above-average storage options. This will be able to accommodate cash in addition to multiple cards.
3. Concealment: The phone-wallet should avoid having sensitive information and cash visible to others when closed.

Here is a compilation of brainstormed sketches coupled with chosen designs highlighted in blue:

Sketch Compilation

Prototype #1: Zipper Clutch

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In the sketch compilation, its sketches are the second from the top on the left, and the second from the top on the right. While not implemented in the prototype, a zipper would encompass the entire perimeter of the phone, excluding the hinge. The left flap provides storage for multiple cards or folded cash, in addition to a pocket underneath the phone sleeve. The phone sleeve is made of clear plastic. If the user wishes to not use the plastic sleeve for a phone, it is also a great option for additional storage, such as a pre-existing card holder, but especially for identification such as a driver’s license. Finally, the zipper provides the concealment, but in a rush, the user could also place items freely in the middle of the wallet-case and zip it up. This case is more geared towards User #1, but also fully satisfies the functionality for User #2.

Prototype #2: Slide & Snap

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In the sketch compilation, its sketches are located on the upper right and upper left. The defining feature of this design is that the phone case is a shell with rails on the left to attach a detachable left cover with card slots. This allows the user to detach the wallet functionality from the phone case functionality at will. Attachment/Detachment would be a similar process to a Joy-Con for the Nintendo Switch console. The left cover also has a pocket on the outer edge, with a zipper to provide concealment and additional storage for cash or keys (seen in the second picture).

Prototype #3: Accordion

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We believe there is promise in the modular detachments, which allows adaptability to a wide variety of users. Thus, future investigations will most likely look at different combinations of Prototypes #2 & #3 and additional permutations.