Get the Spigen Air Fit Pro MagFit. Its spring-loaded cover encloses the hinge at all times, so the part of the iPhone Duo that folds stays covered along with the back.
Apple calls its folding phone the iPhone Duo, but people still search for an iPhone Fold case. Same phone. Each of the four cases below is here for one strength.
At a Glance#
Best overall : Spigen Air Fit Pro MagFit View on Amazon
Best clear : Speck Presidio Perfect-Clear Fold
Best thin : PITAKA Caseless Feeling Aramid
Best rugged : Ridge Phone Case (Carbon)
Key Highlights:
- Spigen: covers the hinge at all times, and the two halves lock together on steel pins
- Speck: clear, keeps the hinge covered from open to closed, and is made to resist yellowing
- PITAKA: aramid fiber, 0.57 oz and as thin as 0.04 inches
- Ridge: a carbon fiber back, aluminum buttons and a TPU bumper
- dbrand's Grip Case, sold on dbrand.com, covers the hinge with one strip of elastic polymer
- Apple makes two of its own: the iPhone Duo Case in polycarbonate with a matte coating, and a TechWoven fabric folio with a kickstand
Who this comparison is for#
- You want the hinge covered as well as the back: get the Spigen.
- You want to see the phone through the case, with the hinge still covered: get the Speck.
- You want a very thin case: get the PITAKA.
- You want a carbon fiber back, aluminum buttons and a bumper made for drops: get the Ridge.
How we picked#
- Every case here is made for the iPhone Duo.
- Each one is here for one strength: the hinge, a clear back, thinness or drop protection.
- We haven't tested them ourselves, and price played no part in the order.
- Apple's own cases and dbrand's Grip Case are here so you can compare. They're not picks, and we have no affiliate link to them.
The four cases side by side#
| Case | Material | At the hinge | MagSafe | Buy |
|---|---|---|---|---|
| Spigen Air Fit Pro MagFit | Polycarbonate, Thermoplastic Polyurethane | Covered at all times | Yes, N52 magnets | View on Amazon |
| Speck Presidio Perfect-Clear Fold | Thermoplastic Polyurethane | Covered open or closed | Yes, built-in magnets | View on Amazon |
| PITAKA Caseless Feeling Aramid | Aramid fiber | Left bare | Yes, Amber Magnet Film | View on Amazon |
| Ridge Phone Case (Carbon) | Carbon Fiber | Covered by a strip of the case | Yes | View on Amazon |
Spigen Air Fit Pro MagFit — Best overall#
The Spigen is built around the hinge. Its spring-loaded cover stays over the hinge at all times, open or folded, and the two halves of the case lock together on steel pins.
It's slim, too: a polycarbonate and TPU shell with full fold coverage that protects without bulk. N52 magnets hold MagSafe chargers and accessories, which attach directly through the case, and it works with fast wireless charging.
Key Specs
Material : Polycarbonate, Thermoplastic Polyurethane
At the hinge : Spring cover that encloses the hinge at all times
Panels : Front and rear panels interlock on heat-treated steel pins
Magnets : N52 magnets
Bottom line. Get it if you want the hinge covered, not just the back.
Speck Presidio Perfect-Clear Fold — Best clear#
Speck is the clear one, and it covers the iPhone Duo's hinge too. It's a one-piece design, and its hinge protector automatically closes as you fold the phone, so the hinge stays covered from open to closed.
Coatings and UV-resistant materials help keep it from turning yellow. Raised edges help keep the screen off the table when you put the phone down face first, and built-in magnets line it up with MagSafe chargers and accessories.
It's sold as a case for the iPhone 18 Duo. Same phone, different name.
Key Specs
Material : Thermoplastic Polyurethane
At the hinge : Hinge protector that closes as you fold
Coating : UV-resistant, helps prevent yellowing
Model number : 151119-5085
Bottom line. The clear case that still covers the hinge.
PITAKA Caseless Feeling Aramid — Best thin#
PITAKA's Caseless Feeling iPhone Duo case is the one to get for thinness. The aramid fiber shell is as thin as 0.04 inches and weighs 0.57 oz.
There's a raised 0.5 mm lip around the camera, and a flat magnet film keeps MagSafe chargers and accessories lined up. The case covers the camera half of the phone, and the hinge stays bare.
Key Specs
Thickness : From 0.04 inches
Weight : 0.57 oz
Shell : aramid fiber
Camera bezels : raised 0.5 mm
Magnets : Amber Magnet Film
Bottom line. Get it if thickness matters more to you than the hinge.
Ridge Phone Case (Carbon) — Best rugged#
This is the one with a carbon fiber back. It's built in two layers, with a TPU bumper around the edges and aluminum buttons.
It's engineered for up to 8ft of drop resistance, with raised edges for the screen and camera. That figure covers the whole Ridge range, so don't read it as a measurement of this Carbon case.
There's a touch sensitive camera button you can tap, touch and swipe, and you keep full access to the camera controls, buttons and ports. It works with MagSafe accessories and Qi wireless charging, so it can stay on while the phone charges. A strip of the case, with the Ridge logo on it, runs over the hinge.
Key Specs
Material : Carbon Fiber
Build : Dual-layer construction with a TPU bumper
Drop rating : Engineered for up to 8ft, across the Ridge range
Controls : Aluminum control buttons and a touch sensitive camera button
Model number : A1220
Bottom line. Get it for the carbon fiber back and a bumper made for drops.
Also worth a look: dbrand's Grip Case#
Want the hinge covered and happy to order straight from the maker? Look at dbrand's iPhone Duo Grip Case. Its hinge cover is one strip of elastic polymer: it opens like a door, springs back on its own, and magnets hold it shut. A dedicated cutout for the Camera Control button works even when the phone is folded shut. dbrand sells it on its own site, and that's where the link goes.
Which one should you buy?#
Get the Spigen Air Fit Pro MagFit: its spring-loaded cover encloses the hinge at all times, and its front and rear panels lock together on steel pins.
Get the Spigen if the hinge is what worries you. MagSafe chargers and accessories attach directly through the case too. View on Amazon
Get the Speck if you want to see the phone through the case. Get the PITAKA if thickness matters most and you can live with a bare hinge.
Get the Ridge if you want a carbon fiber back, aluminum buttons and a bumper made for drops.
Our recommendation: start with the Spigen. Pick one of the other three only if its one strength is the thing you came for.
FAQ#
Does Apple make a case for the iPhone Duo?
Yes, two. The iPhone Duo Case is thin and light, with a two-part design that wraps around both halves of the phone. The iPhone Duo Folio with Kickstand is made of fabric and has a kickstand built in. Both work with MagSafe, Qi2 25W and Qi-certified chargers.
Which of these cases covers the hinge?
The Spigen, the Speck and the Ridge. The Spigen's spring-loaded cover encloses the hinge at all times, the Speck's hinge protector keeps it covered from open to closed, and a strip of the Ridge runs over it. The PITAKA leaves the hinge bare.
Do these cases work with MagSafe chargers?
Yes, all four. The Spigen has N52 magnets, and MagSafe chargers and accessories attach directly through the case. The Speck has built-in magnets, the PITAKA has an Amber Magnet Film, and the Ridge works with MagSafe accessories and Qi wireless charging.
Which of these cases adds the least thickness?
Probably the PITAKA. Its aramid fiber shell is as thin as 0.04 inches, and it covers only the camera half. The Spigen is slim too, but we found no thickness figure for the other three.