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Catalyst Impact Protection Case for Apple Watch Series 4/5 - 40mm




  • Ultimate case for Apple Watch Series 4 and 5
  • Drop-proof MIL-STD 810G 3 metre (corner and face drops)
  • Dual-layer protection incorporated with impact truss cushioning system 
  • Ultra-slim, ultra-lite structure at a mere 18 gr
  • Exposed and protected digital crown and heart rate sensor
  • Raised bezel protects fully open display
  • Works with Apple’s ECG/EKG app
  • Easy to install/remove
  • Comes with breathable hypoallergenic Sports Band
  • Secure spring bar for watch bands (for convenient replacing)
  • Compatible with 22mm watch bands
  • Total package case with integrated bands


  • Apple Watch Series 4 (40mm)

 The Impact Protection case has not just evolved, it has totally been re-thought for the Series 4 Apple Watch. This case offers 3 m of drop protection through a dual-layer construction incorporating Catalyst’s innovative truss cushioning system. 

This Apple Watch case is built with raised bezels to keep important watch components – the display, optical heart-rate sensor, and digital crown – fully exposed yet fully protected from bumps, knocks and drops.

Impact Protection case features an integrated watch band, creating a total package of protection and style. Watch band customisation is easy through a quick release spring bar, compatible with Catalyst’s wide selection of sport bands or any other watch band with a watch pin connector.

The Catalyst Case for Apple Watch Series 4 is precision-engineered to perform beyond expectations so the Apple watch can be taken on every adventure. With 18% stronger housing than the previous Series 3 version, the case offers superior protection for your Apple Watch.

This is the only Apple Watch case offering total 360-degree protection. Full functionality of the Apple Watch is maintained (with exception of Apple’s ECG/EKG) with IP-68 waterproof protection of 100 m and MIL-STD 810G drop protection up to 2 m.

It’s fully sealed against water, dust, dirt, and snow and has an exposed face for with direct touch screen access, great for all adventures – wet and dry. The raised bezel protects the screen from scratches and impacts while Catalyst's patented True Sound Acoustic Technology™ allows audio to come through totally clear.

Not only is the case rugged, it's also stylish and incorporates a hypoallergenic silicone band that’s both durable and comfortable.


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