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Free screen replacement warranty

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Buy Cat S41 Unlocked & SIM Free / UK

Share the Power!

Cat's branded smartphones have been critically praised and reached new levels of popularity in the past couple of years. With the new S41, they have produced a rugged smartphone with so much battery power it can charge other products with its Battery Share feature.

Built to handle extreme conditions with a specification beyond IP68, the Cat S41 will keep on working underwater or in harsh environments.

Reason to buy the CAT S41 Sim Free

  • Android 7 Nougat & productivity apps (Battery Share, AVG, Office Suite, File Commander, App Toolbox)
  • 5-inch Full HD (1920 x 1080) screen
  • Corning Gorilla Glass 5
  • 2.3 GHz Octa-core processor
  • 13MP main camera with PDAF & LED flash
  • 8MP selfie camera
  • Beyond IP68 - water-resistant to 2m for 60 minutes 
  • Strengthened die-cast frame
  • Drop-proof to 1.8m
  • Huge 5,000 mAh battery
  • Power Share app lets you use the S41 as a power bank

Box Contents

  • Cat S41 Rugged Smartphone (SIM Free / UK)
  • Quick Start Guide
  • Warranty card
  • Mains charger and micro USB cable
  • Battery Share cable
  • Screen protector


Over the past few years, Cat has changed the perception of rugged smartphones. Not too long ago, a rugged phone was often expensive and underpowered all at once. Cat changed that with the original Cat B15 Toughphone: a game-changing product that was both affordable and carried a decent specification.

They haven't looked back and the S41 is an example of their vision in the rugged category. With a solid, robust design, the Cat S41 ticks all of the boxes required for a rugged product. It even goes beyond the standard IP68 dust and water-resistance rating.

But there's more than just that. The S41 is a high-quality modern smartphone too, with Android 7 Nougat, octa-core processing, a Full HD screen, Android Pay certification and other features, all at an affordable price point. 

Take Charge

Ask anyone what they want from a smartphone and the answer will probably be "longer battery life!

The Cat S41 answers those calls with a huge 5,000 mAh cell. In standard conditions, this big battery can deliver up to 38 hour's continuous talk time on a 3G connection. Left alone that's up to 44 days on standby. 

No more rushing around to find a charger for the trip home, or realising you're almost out of juice because you stopped out for a few hours after work. With the S41 you can get to the end of every long day with power to spare. 

Share The Power

With a unique app designed specifically for the S41, you can turn the phone into a portable battery bank and share some of your power. 

Included in the box is a Power Share Cable. Simply open the Power Share app, and connect the other device to your S41. You can also set limits to the sharing to make sure you don't drain your own phone's battery too low!

Go Beyond Rugged

Most rugged phones will tout a MIL-SPEC 810G and IP68 rating. The Cat S41 matches these claims and it also takes further steps.

IP68 only specifies water-resistance to 1.5 metres and 30 minutes. The Cat S41 has been tested to 2 metres and 60 minutes. It's also tough enough to handle thermal shocks, salt mist spray and fine particulates. 

The 5-inch screen has been manufactured with the most recent scratch-resistant Corning® Gorilla® Glass 5. Finally, the handset has been drop proof tested onto concrete from to 1.8 metres. 

Additional Features

Glove Mode

Accessible from the settings, Glove Mode changes the sensitivity settings of the screen so that it is compatible with gloved hands.

Easy Grip Design

Wrapping around the whole handset is a textured, grippy finish. The keeps the phone stuck to the spot, even when rested on inclines and slippy surfaces.

It's also easy to locate in a deep pocket or bag and easier to hold in the hand than the glossy, anodised finished of comparable fashion-style smartphones. 

Push To Talk

If using several S41 handsets for a group of workers or another such team, the PTT button can be utilised with compatible apps for immediate short to medium range communication.

Easy Read Display

Alongside the Glove Mode mentioned above, the Cat S41 screen has also been designed to minimise glare from direct sunlight and other sources of bright light. 

App Toolbox

Looking for some useful and relevant applications? Sick of filtering through thousands of silly games and distractions on the Play Store? With the App Toolbox, you can browse through work-related applications, filtering by industry or keyword.

© 2017 Caterpillar. All Rights Reserved. CAT, CATERPILLAR, BUILT FOR IT, their respective logos, “Caterpillar Yellow”, the "Power Edge" trade dress as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

Bullitt Mobile Ltd is a licensee of Caterpillar Inc.

We cannot guarantee that all gloves will work with the Glove Mode feature.

Battery times (talk time, standby time, and more) are based on 3G and are subject to network and phone usage. 

All other trademarks, trade names, product names and logos are the property of their respective owners. Any rights not expressly granted herein are reserved.


Stock Origin & Compatibility

All our phones are SIM Free & Factory Unlocked, compatible with UK, EU & most global SIM cards, with support for global GSM & 3G networks. For 4G/LTE & 5G support outside of Europe, please check the specifications.

Clove Technology primarily obtains stock from a manufacturer's official UK supply chains. These products will be displayed as a 'UK Model'.

Occasionally Clove source products from the European mainland. These will be marked as an 'EU Model', supplied factory sealed with a 2pin EU mains charger or 'EU Convert', opened to swap to a UK charger and resealed.

EU sourced phones will have a full warranty and are compatible with all UK networks. We do not source any products from Hong Kong or other Asian markets.

Operating System
7.0 (Nougat)
Custom Skin
Mediatek MT6757 Helio P20 (16 nm)
Octa Core (4x 2.3 GHz & 4x 1.6 GHz)
Mali-T880 MP2
Expansion Slot
Micro SD
Capacity (Up to)
256 GB
Internal Storage
32 GB
3 GB
1080 x 1920 (~441 ppi)
Corning Gorilla Glass 5
Rear Camera
13 MP
Lens & Sensor Tech
Flash & Focus
LED Flash
Front Camera
8 MP
Lens & Sensor Tech
Flash & Focus
5,000 mAh
Non-removable Li-ion
2G/GSM Bands
850 / 900 / 1800 / 1900 MHz
3G/HSPA Bands
850 / 900 / 1900 / 2100 MHz
4G/LTE Bands
1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800)
5G Bands
802.11 b/g/n
4.1 with A2DP, LE
FM Radio
Power Port
micro USB
Data Port
micro USB
Audio Port
3.5mm audio jack
Video Out
Physical Keyboard
Power, Volume, Android Navigation, Programmable Key
Fingerprint Sensor
Other Controls
Location Technologies
Built-In Maps
Google Maps
Digital Compass
Light Sensor
152 x 75 x 12.9 mm (5.98 x 2.95 x 0.51 in)
218 g (7.69 oz)
Google Play, Google App Suite, Battery Share, AVG, Office Suite, File Commander, App Toolbox
Beyond IP68 (water-resistant 2 metres for 60 minutes) | Salt fog, sand, dust, dirt, vibration (Cat4) and pressure resistant | Drop-tested to 1.8m on concrete