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CAT S40 Tough Smartphone



The Cat S40 has been discontinued.

The replacement model is the new Cat S41

Cat S40 SIM Free UK Clove

CAT S40 (SIM Free/UK)

The CAT S40 redefines what it is to be a rugged phone with a large 4.7” qHD display and high quality audio. Like other CAT phones it is exceptionally rugged and is able to deal with, up to, 1.8 metre drops and other adverse conditions.

SIM Free /Unlocked UK Stock

At Clove Technology we specialise in offering SIM free, unlocked phones. The CAT S40 is no exception with its 2 x nano sized SIM slots.

This is a dual SIM enabled smartphone which means you can have one or two SIMS in the phone at any one time. Use both a personal and work SIM card in the same phone or maybe a local and international SIM, the choice is yours. Or if you need only one SIM slot, leave the other empty.

Reason to buy the CAT S40

  • Latest Android 5.0 – Lollipop
  • 4.7” qHD sunlight readable display
  • 1.1GHz quad-core processor
  • Great battery life – 3000 mAh
  • Built to IP68 & Mil Spec 810G standards
  • High quality audio experience
  • 8 MP rear camera – with autofocus
  • 4G/LTE compatible
  • Dual SIM

Box Contents

  • CAT S40 SIM Free Smartphone
  • 3 PIN UK Mains Adapter
  • USB Cable
  • Screen Protector
  • Documentation

Cat S40 SIM Free UK Clove


For a long time, when contemplating or using a rugged phone, we all had to be content with not having the latest specification. The alternative was to buy a consumer phone and then put it in a bulky case. CAT changed this with the release of the B15, and they have continued to evolve their range of products with the CAT S40.

This smartphone has it all with a 4.7” qHD screen and high quality audio, along with 4G/LTE connectivity, and the latest version of Android 5.0 Lollipop. This means you have the kind of specification which is normally associated with consumer phones, but within a rugged design.

The 1.1GHz quad-core Snapdragon processor, along with the 1GB of RAM and 16GB of internal storage, is perfect for running all but the most demanding apps and games. The large amount of storage will give you plenty of space to store all of the apps you download, and also any photos or other media you wish to store. When combined with the other stand-out features including 4G/LTE connectivity and the 4.7” qHD display you have a very capable smartphone.

Like the rest of the CAT range the S40 is able to withstand the rigours of daily life, due to its rugged design. It has been designed to adhere to Military standard 810G and is able to withstand drops of, up to, 1.8 metres onto concrete. It is also completely dust and waterproof, as it complies with the ingress protection IP68. As such not only can you drop this phone without worry, it is also able to deal with environments you wouldn’t take other similar devices.

When you are working out in the open you need a phone which will get you through an entire day’s usage. CAT has chosen to put a large 3000 mAh battery in the S40. This means that not only should you be able to get through an entire day, but it should be possible to have 2 days away from your charger before you need to re-charge.

Meet the CAT Family

CAT also produce a range of rugged, waterproof smartphones without thermal imaging. For rugged smartphones with modern capabilities at more affordable prices, check out the range below.

The S60 is a large rugged phone with integrated thermal imaging technology. The S30 is an entry level phone with a slightly smaller and lower resolution screen. The B30 is a traditional mobile phone design with a robust casing.

Cat S60 Thermal Imaging


  • 4.7" 720p screen
  • 1.5 GHz 8-core processor / 3,000 mAh battery
  • 8 MP camera / Dedicated thermal imaging
  • IP68 water resistant to 5m


  • 4.5" FWVGA screen
  • 1.1 GHz processor / 3,000 mAh battery
  • 5 MP camera / 4G compatible
  • IP68 water & dust resistant


  • Traditional mobile phone layout
  • IP 67 water resistant
  • Drop resistant
  • FM Radio, torch & MP3 player

View the full range of Cat phones HERE.


SIM Free & UnlockedYes
Operating SystemAndroid
  • Version5.0 Lollipop
  • Custom Skin
  • Speed1.1 GHz
  • Dual Core
  • Quad CoreYes
  • Make/ModelQualcomm MSM8909 Snapdragon 210
  • OtherAdreno 304 GPU
Expansion SlotYes
  • TypeMicroSD
  • Capacity (Up to)Up to 64GB
Internal StorageYes
  • Capacity16 GB
  • TouchscreenYes
  • Size4.7
  • TypeqHD LCD
  • Resolution 540 x 960 pixels
  • Otherwet finger and glove tracking, sunlight readable & Corning Gorilla Glass 4
  • Frequencies850 / 900 / 1800 / 1900 MHz
  • Speed
  • Frequencies850 / 900 / 2100 MHz
  • Speed
  • FrequenciesBands 1(2100), 3(1800), 7(2600), 8(900), 20(800)
  • Speed
  • Version4.1
  • Functions
  • VersionIEEE 802.11 a/b/g/n
  • Version
  • DataMicroUSB, USB OTG
  • PowerMicroUSB
  • Audio3.5mm
  • Video Out
Device Controls
  • Keyboard
  • Optical Trackpad
  • Hardware Buttons
  • Other
  • Antenna TypeGPS / GLONASS
  • A-GPSYes
  • Built-in SoftwareGoogle Maps
  • Megapixels8 MP
  • FlashAuto focus
  • Camera Lens
  • OtherVideo Recording Up to 1920x1080, 60fps
Front Facing CameraYes
  • Type2 MP
  • AccelerometerYes
  • Proximity SensorYes
  • Digital CompassYes
  • Gyroscope
  • Light SensorYes
  • RecordingAMR-NB, AMR-WB, AAC, ACC , eACC , WAV
  • FormatsH.263, H.264, H.265, MPEG4, VP8, VP9
  • RecordingH.263, H.264, VP8
Near Field CommunicationYes
FM RadioYes
  • Capacity3,000 mAh
  • TypeNon removable Lithium Ion
  • Removable
Call Time
  • GSM
  • 3GUp to 18 hours
Standby Time
  • GSM
  • 3GUp to 39 days
Dimensions144.9 x 74.1 x 12.5mm
Weight 185g
OtherIP68, beyond MIL Spec 810G, drop tested to 1.8m & high quality audio experience, -25°C (-13°F) to 55°C (131°F)
Warranty24 months


Cat_S40_User_Guide.pdf Cat_S40_User_Guide.pdf (1447KB)



Will my phone work

The following is a list of Frequently Asked Questions (FAQs) about this product. Hopefully you will find the answer to your question, if not, use the contact form below and we shall answer it for you.

Do you ship internationally?

Yes - If you are located outside of the UK you may want to take a look at our list of FAQs for international customers on the following link:

Is this phone SIM FREE and Unlocked?

Yes, this phone is SIM Free and unlocked and can be used with networks around the world. Do check the specifications to ensure compatibility in your region with your network provider. No SIM card or contract applies to this phone.

Is this phone brand new?

Yes. Unless the description of the product suggests otherwise (I.e. EX-DEMO) then this product is brand new and has not been used before.

Is there any network/operator branding?

No - There is only the manufacturer’s branding.

Does the phone have a Micro SDHC/memory card slot?

Yes. It can officially take microSD cards up to a size of 64GB.

What SIM card does this phone use?

It uses 2x nano SIM cards

Is this phone waterproof?

The S40 is IP68 rated, waterproof to a depth of 2 metres for up to half an hour

Can I drop this phone?

The S40 is rated and designed to withstand drops onto concrete from a height of 1.8 meters although regular drops onto concrete and other surfaces may result in physical damage.

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Overall Rating 4 Stars * * * * * View Clove's Own Review
5 star
3 star
2 star
1 star
  • Jon 25/9/2015 Recommend to a friend? Yes
    Whilst it is not an upgrade over the S50 it is a refinement in design and looks more appealing than the S50. The programmable key is useful and the back cover is very grippy. Surprisingly good all round performer. Whilst not light it feels like it will take a few knocks.
  • Dennis 18/10/2015 Recommend to a friend? Yes
    Very pleased with phone for work.
    Easy to use and set up. Feels well made and rugged.
    Yellow programmable key, handy for flash light, working with out fumbling for key lock.
    Dual sim handy for the blank spot areas in rural Aberdeenshire.
    pleasantly surprised.
    The only improvements I could suggest would be better camera, and cordless charging.
    Very pleased with clove after sales care

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