# ERONIX Leather Folio for iPhone Duo > Full-grain, vegetable-tanned leather folio for iPhone Duo, Apple's folding iPhone. Two card slots, MagSafe and Qi2. €199, pre-order at eronix.eu. Full-grain, vegetable-tanned leather, cut for iPhone Duo. Two card slots. MagSafe and Qi2 charging. And a patina that will be yours alone. - Page: https://eronix.eu/ - Price: €199 including VAT for delivery in the EU (free). Outside the EU (Norway, Iceland, Liechtenstein, Switzerland, United Kingdom) the same figure excludes local VAT and duties. Pre-order: nothing is charged until the order is confirmed. - Availability: Pre-order - SKU: ERX-LF-DUO-CHT - Returns: 30 days from delivery for a full refund (prepaid return label in the EU), on top of the 14-day statutory right of withdrawal; two-year guarantee. ## Specifications - Compatibility: iPhone Duo - Colour: Chestnut - Leather: Full-grain, vegetable-tanned - Lining: Microfibre - Camera ring: Anodised aluminium - Cards: Two slots, inside the cover - Charging: MagSafe and Qi2 compatible - Magnets: Nickel-plated neodymium array - Protection: Raised edge, 1.15 mm above screen and camera - Thickness: Cover 3.8 mm · Backplate 2.7 mm - In the box: Leather Folio - Warranty: Two years ## Questions and answers ### How does pre-ordering work? You reserve a folio now and nothing is charged. Before it ships we write to you to confirm the order and arrange payment, and you can cancel at any point before then. ### How is full-grain different from other leather? Full grain is the top layer of the hide with the grain intact. It is not sanded or embossed to hide marks, which is why it wears in rather than wearing out. Corrected-grain and bonded leathers start smoother and stay that way — until they crack. ### Will the colour change? Yes. Vegetable-tanned leather darkens with handling, skin oils and light. Expect a noticeably deeper shade within the first few months and a burnished finish on the edges and corners. Every folio ages differently — that is the point. ### Does it charge with MagSafe? Yes. The magnet array lines up with the ring on iPhone Duo, so MagSafe and Qi2 chargers snap on and charge through the leather back. The card slots are in the cover, not the back, so cards never sit between the phone and the charger. ### Does the cover close over the outer display? Yes. With iPhone Duo folded, the cover closes over the 5.4-inch outer display, so the glass is covered in a pocket or a bag. Open the cover to use the outer display, or open the phone for the 7.6-inch inner display — the folio's spine moves with it. ### How do I look after the leather? A dry, soft cloth for dust. A neutral leather balm, used sparingly, once or twice a year. No solvents, no prolonged direct sun, and if it gets wet, let it dry on its own. It needs less than you think. ### Does it fit iPhone 18 or iPhone 18 Pro? No. The folio is cut around iPhone Duo's hinge and its 5.4-inch outer display, so it fits iPhone Duo only. iPhone 18 and iPhone 18 Pro are single-screen phones with different dimensions and camera layouts, and a folio made for them would be a different product. ### What is iPhone Duo? iPhone Duo is Apple's first folding iPhone, introduced on 9 September 2026 alongside the iPhone 18 family: a 5.4-inch outer display, a 7.6-inch inner display, a grade 5 titanium body, and MagSafe with Qi2 charging. Pre-orders open on 16 October 2026 and it ships from 23 October. ### What does the Leather Folio cost, and where does it ship? €199 including VAT, with free delivery in the European Union. It also ships to Norway, Iceland, Liechtenstein, Switzerland and the United Kingdom, where the price excludes local VAT and import duties. Nothing is charged when you pre-order; payment is arranged when we confirm your order before it ships. ### What if it isn't right for me? Send it back within 30 days of delivery for a full refund, with a prepaid return label for addresses in the EU. That comes on top of the 14-day statutory right of withdrawal and the two-year guarantee. ## The other ERONIX product - [ERONIX Entropy67 Power Adapter](https://eronix.eu/entropy67/): ERONIX Entropy67: a 67 W GaN power adapter, ultra-slim, two USB-C ports, USB PD 3.2 with AVS for iPhone 18. Folding pins, EU and UK heads. €99, pre-order. ## Other languages - [Deutsch](https://eronix.eu/de/index.md) - [Français](https://eronix.eu/fr/index.md) - [Nederlands](https://eronix.eu/nl/index.md) - [Italiano](https://eronix.eu/it/index.md) - [Español](https://eronix.eu/es/index.md) --- Prices include VAT. 14-day right of withdrawal and two-year statutory guarantee of conformity under EU law. Delivery to the EU and selected European countries. ERONIX® is a registered trademark. iPhone, iPad, MacBook Air, MacBook Pro, Apple Watch, AirPods and MagSafe are trademarks of Apple Inc. Qi2 is a trademark of the Wireless Power Consortium. USB-C and USB Power Delivery are trademarks of USB Implementers Forum. © 2026 ERONIX. All rights reserved.