Best slim iPhone Duo cases

A slim case is the natural match for iPhone Duo, which Apple's spec page lists at 254 g and 11.3 mm thick closed. The catch: the thinnest cases skip the hinge or most edge protection, so they guard against scratches more than real drops.

Every pick below is listed for iPhone Duo on the maker's own store, with prices as of Nov 4, 2026. Thickness and weight come from the maker where stated, otherwise from Macworld's iPhone Duo case guide (updated Nov 3), which checked fit on a dummy handset rather than a working phone.

Sources: maker pages and Macworld, as marked.

Apple iPhone Duo Case: the default thin shell

Apple's iPhone Duo Case costs $79 on Apple's online store. Apple's product copy, as reproduced by JB Hi-Fi, describes a two-part polycarbonate case with a matte coating and built-in magnets that works with MagSafe, Qi2 25W and Qi-certified chargers.

The limitation: Macworld notes the case leaves the hinge uncovered and needs adhesive strips, so it isn't as easy to remove and refit as a magnetic case. More in the full iPhone Duo Case review.

totallee Scarf: the thinnest on paper

Totallee says its Scarf for iPhone Duo is 0.03 inches thin (about 0.76 mm, converted) and weighs 0.4 oz (about 11 g, converted), the smallest figures here on paper. It costs $39, comes in two parts and needs the included adhesives.

Totallee says the Scarf works with MagSafe charging, but only its MagSafe-specific cases have built-in magnets for accessories. The limitation is protection: totallee rates it for a 4 ft drop and promises "everyday protection from bumps, scratches, dirt, and minor drops," with open button cutouts and no mention of the hinge.

totallee Spy: clear, with the halves joined

The totallee Spy is a clear iPhone Duo case at $35, with a MagSafe version also offered on the same page. Totallee lists it at 0.04 inches thin (about 1 mm, converted), with a flexible TPU border, a hard plastic back, button covers and a 6 ft drop rating.

Totallee says the two parts are connected by a hinge that works with the fold, and no adhesive is required. The limitation: totallee publishes no weight, and with only a slightly raised front lip it recommends adding a screen protector.

PITAKA Edge Case: aramid fiber, no hinge

PITAKA's iPhone Duo store lists its aramid fiber Edge Case, in the version it calls Suite Case Without Hinge, at $99.99, and says integrated magnets align with MagSafe. Macworld describes an aramid front frame plus a 1.3mm back cover held with adhesive strips, at 36 g.

The limitation is in the name: no hinge coverage, which Macworld counts as the price of keeping it slim.

Nomad Magnetic Leather Back: back cover only

Nomad's Magnetic Leather Back costs $59 and covers the back in Horween leather with a 2.2mm backplate and a raised camera ring. Nomad lists MagSafe and Qi2 charging and holds the cover on with magnets plus microsuction.

The limitation: it's back-only. Macworld lists it at 64 g (the same figure it gives Nomad's full folio), with no hinge protection.

Benks ArmorGrid Air: lightest, but on preorder

By Macworld's numbers, the Benks ArmorGrid Air is the lightest pick: 18.8 g in Obsidian Black with a 1.2mm Kevlar back, or 23.5 g in Beyond Blue. Benks lists the Obsidian Black Grand Combo at $109.99, with a front frame, a Kevlar back case and a screen protector in the set.

Two limitations: Benks says hinge protection is not included, and the set is a preorder shipping from Nov 12. Macworld marks it MagSafe-compatible; Benks's page doesn't say.

Which slim case should you buy?

For a thin, official case, Apple's $79 shell (as of Nov 4, 2026) is the safe default, as long as a bare hinge and adhesive don't bother you. Minimalists should pick the totallee Scarf, the thinnest and lightest here on paper at $39, while the totallee Spy suits anyone who wants the halves joined without adhesive. None of the slim picks here is listed as covering the hinge, so if a bare hinge is a deal-breaker, see the best iPhone Duo cases guide. Spigen's clear Ultra Hybrid Pro ($49.99) covers the hinge, but Spigen says it isn't compatible with MagSafe accessories.

If your Duo lives in a bag with keys or gets dropped on hard floors, the heavier picks in that guide or the OtterBox Defender Series Pro XT make more sense, and a case does nothing for the inner screen, so read whether an inner screen protector is worth it.

Mous's EU store lists a hinge-free Limitless Fold aramid case for iPhone Duo shipping in late November. We'll update this guide as new thin cases ship.