1. Anymode Marvel Beamcase
These funky Marvel cases come in a variety of designs, featuring pretty much all of your favourite Marvel superheroes. The case itself interacts with the NFC function in the S4 - whenever your phone is transferring data via NFC the eyes of your chosen hero will light up. It's slim and unobstructive of ports too, good show.
Price: £26 | Anymode
2. Speck SmartFlex Card
If you want to ditch the wallet and keep receipt hording to a minimum, the polymer case has enough room in the back to hold three cards or store away an emergency fiver in the back. Available in a range of vibrant colours, there’s also rubberized cover for Sleep/Wake and volume buttons to keep out the scratches.
Price: £34.95 | Speck
3. Quiksilver Redemption
The fashion choice of winter sport enthusiasts and surfers, the case with a trendy checked print is slim enough to not add extra bulk to your 7.9mm thick Samsung Galaxy S4 smartphone and also comes with a screen protector to add another layer of protection.
Price: £19.95 | Proporta

4. Tech 21 Impact Snap with Cover
Tailor-made and military grade, snap this onto your S4 case and shock absorbing D30 material which is used in armour by the US Ministry of Defence will help guard against drops and spills. There’s a leather cover to keep things stylish up front and around the back there's access to ports and the rear-facing camera when you need to grab a quick-fire snap.

Price: £24.99 | Tech21
5. Case Mate Barely There
Of course not everyone is a fan of bolting on a case and losing that slender form factor, so with this slim-line cover you can keep things looking thin whilst still guarding the handset against daily damage thanks to the flexible impact resistant polymer shell.
Price: £12.99 | Case Mate