Cases & Covers
5 magnetic, 5 slim, 3 leather — ranked. The key question answered for every pick: does it block the back magnet?
| Type | Preserves magnet? | Best for |
|---|---|---|
| Magnetic snap-on | Yes | Phone-back carry |
| Slim shell / flip | May reduce strength | Pocket or bag |
| Leather sleeve | n/a — slides off to use | Bag carry only |
Back-snap designs that keep the phone-mount magnet fully active.
X4 Official Top pick Official ultra-light back-snap case in 6 colours. Keeps the magnetic mount fully active.
Caution: Fits the X4 only — not the X4 Pro. The Pro is 3 mm shorter, drops the bottom-button cutout and relocates the back magnet, so X4 cases do not fit it.
X3 Official X3 pick 
X4 Amazon PU-leather back-snap case. Keeps the magnetic mount; soft anti-scratch liner inside.
X4 AliExpress Third-party magnetic back-snap, several colours. Solid value if you want more colour options.
X3 · X4 AliExpress Full-wrap anti-collision magnetic cover with reinforced corners. Fits both models.
More impact protection, but some reduce the back-magnet pull. Best for pocket/bag carry when phone-back mounting matters less.
X4 Official Cheapest 14g semi-transparent polycarbonate shell — slim, lightweight, won't distract from the device.
X4 Etsy Face-out to read, flip it to protect the screen in a bag. Reversible snap-on shell.
X4 Amazon Budget faux-leather flip wallet with magnetic closure, card slots and kickstand.
X4 Amazon Colourful shockproof cover bundled with two tempered-glass screen protectors.
X4 Etsy Slim book-inspired case 3D-printed to order in PETG. Looks like a small hardcover.
Slip-in pouches for bag carry. Remove to read; not compatible with phone-back mounting.
X4 Etsy Most reviewed Genuine-leather pouch with a card slot and pen holder. Personalisable with name engraving.
X3 · X4 Etsy Full-grain veg-tan sleeve that develops a patina with use. Fits both models.
X3 · X4 Mo Corner Hand-shaped to exact X3/X4 dimensions via wet-moulding. Made to order.
Magnetic snap-on cases are designed to leave the back magnet fully exposed. Slim polycarbonate shells that cover the back may partially reduce pull strength. Leather sleeves are removed before mounting so they don't interact with the magnet.
No. The X4 and X3 have different dimensions. Always check that the listing specifies your model.
No. The X4 Pro is about 3 mm shorter than the X4, drops the bottom-button cutout and relocates the back magnet, and swaps USB-C for a pogo-pin port — so X4 cases do not fit. An owner who tested it reported the Pro does not fit the X4 magnetic case at all. Buy the X4 Pro Magnetic Case ($8.99) or X4 Pro Protective Case ($3.99) instead.