Silicon Smart Key Case – Protective Key Fob Cover For Smart Fortwo Forfour
Silicon Smart Key Case – Protective Key Fob Cover For Smart Fortwo Forfour is backordered and will ship as soon as it is back in stock.
The Smart Fortwo was designed around a single, clever idea: that a car for the city should think like a city. Compact where it needs to be, efficient where it counts, and unbothered by everything the urban environment throws at it.
Your Smart key fob should work the same way. This Silicone Smart Key Case gives your remote the same no-nonsense protection — a slim, flexible cover that resists scratches, absorbs drops, and adds grip to your key without adding weight, without complication, and without changing how anything works.
Designed for Urban Daily Use
City keys take more abuse than any other. They go in and out of pockets dozens of times a day, share space with transit cards and loose change, get tossed on café tables and office desks, and occasionally hit cobblestones at speed.
The food-grade silicone shell absorbs every minor impact before it reaches the original Smart key fob casing. No cracked plastic from pavement drops. No scratches from pocket friction. The honeycomb-textured surface adds grip so the key is easier to catch, easier to hold, and far less likely to slip in the first place.
Dust-resistant and easy to clean — a quick wipe with soap and water is all it takes.
Zero Interference with How Your Smart Key Works
- All buttons fully accessible — lock, unlock, and boot release respond with a clean press through the silicone
- Keyless entry passes through the cover without any signal loss
- Push-to-start and proximity detection work exactly as normal
- Emergency blade remains fully accessible at all times
- RF-transparent silicone — zero interference with any Smart key function
Compatible Key Types
The Smart silicone key cover is available in two variants to match the key fob designs used across Smart's model range. Compare your key to the product images before ordering.
Type A — Compact Smart Key (Fortwo 451 & 453 / Forfour W454 & 453) Small, rounded remote with 2 or 3 buttons — lock, unlock, and boot. The standard key design for Smart's core city car range. Fits: Smart Fortwo (2007–2014, 451 generation) | Smart Fortwo (2014–2019, 453 generation) | Smart Forfour (2004–2006, W454) | Smart Forfour (2014–2019, 453 generation)
Type B — EQ Generation Key (2020+ models) Updated key profile for the fully electric Smart line-up. Fits: Smart EQ Fortwo (2020+) | Smart EQ Forfour (2020+) | Smart EQ Fortwo Cabrio (2020+)
Smart key fob designs may vary by market and production run. Always compare your fob to the product images before ordering. Contact us with a photo if you need confirmation.
Slim. Light. No Added Bulk.
The Smart Fortwo exists because unnecessary bulk was eliminated. This key case follows the same logic. The protective shell adds less than 2mm to the profile of your Smart key fob — it stays slim in the pocket, clips and card holders, and the smallest bags. The silicone stays pliable in winter cold and holds its shape in summer heat.
Fitting takes seconds. Removal takes seconds. No tools, no adhesive, no permanent modification to your original key.
Available in Multiple Colours
Your Smart doesn't have to be anonymous — and neither does your key. Available in several colours including clean matte black, white, and accent tones that work with Smart's bold two-tone exterior palette. The soft-touch finish adds a tactile quality over bare plastic that makes the key noticeably nicer to handle every day.
Why Choose This Silicone Smart Key Case?
| Feature | Detail |
|---|---|
| Material | Premium food-grade silicone |
| Protection | Scratch, drop & dust resistant |
| Signal pass-through | Keyless entry & EQ compatibility confirmed |
| Button access | 100% tactile through the cover |
| Construction | Slim profile, no added bulk |
| Installation | Tool-free, seconds to fit |
| Colours | Multiple options available |
| Warranty | 1-Year coverage |
Frequently Asked Questions
How do I know which type fits my Smart key? Type A covers all Fortwo and Forfour models from 2007 to 2019 (451 and 453 generations). Type B covers the EQ line from 2020 onwards. Compare your fob shape to the product images — if still unsure, send us a photo and we'll confirm.
Will the case interfere with my Smart EQ's proximity entry? No. Silicone is fully RF-transparent. Proximity detection, keyless entry, and push-to-start all function normally through the cover with zero signal loss.
How do I access the battery or emergency blade? Simply peel the silicone case off — it takes a few seconds and leaves the original key completely untouched. Slide it back on when you're done.
Will it yellow or crack over time? High-grade silicone resists UV exposure, extreme temperatures, and everyday wear. It will not discolour or lose its shape even in direct sunlight.
Every order includes Free Shipping and is backed by our 1-Year Warranty.

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