CAT S31 Black 4.7" 16GB 4G Dual SIM Unlocked & SIM Smartphone
Finance from £17.18 a month. (14.9% APR) representative.

£ 191.38  inc. vat

£ 159.48 ex. vat

CAT S31 Black 4.7" 16GB 4G Dual SIM Unlocked & SIM Smartphone

QuickFind: 911776 Mfr part code: CS31-DAB-EUR-KN
  • 4.7" Display
  • 16GB, 4GB
  • Camera:8MP Rear,2MP Front
  • Colour: Black
  • SIM Type: Dual SIM

Product Description

CAT S31 Black 4.7" 16GB 4G Dual SIM Unlocked & SIM Smartphone

Long Life Battery Phone
Forget trying to work out clever ways to save your phone's battery life. The best smartphones today are designed to house large batteries to keep you working for longer, without the need to continually charge up.

Reliable Long Life Phone Battery
Working in remote locations, or being far away from electrical outlets does not need to be a problem anymore.

Improving your phone's battery life is one less thing you need to worry about, thanks to the range of Cat rugged phones designed to let you be connected, no matter where you are.

The Cat S31 boasts a large 4000 mAh battery to help you stay connected even in isolated places.

Cat S31 Smartphone: Reassuringly Useful
The Cat S31 is a truly rugged phone. Water, dust and drop proof with a scratch-resistant screen - it can handle whatever's thrown at it.

Waterproof Smartphones Built for Rugged Environments
Water-resistant phones today are built to survive even the wettest conditions. Clever innovations and an industry standard Ingress Protection (IP) rating system ensure your phone can handle not just a brief dunk in water but also complete submersion.

Leading Waterproof Technology
Waterproof technology lets your phone survive more than just a splash of water.

The touchscreens on Cat smartphones are equipped with innovative wet finger tracking technology, meaning you can use the touchscreen as normal even when wet.

Waterproof Cat Phones
All Cat rugged phones are more than simply a little splash proof. They're specially designed to perform to high standards even in wet environments.

Our most rugged smartphones are IP68 certified, which is the highest IP rating available.

Don't just settle for a splash proof phone, when you can have a truly waterproof device.

Our Most Waterproof Phones
If you need a truly waterproof mobile, you need to buy an IP68 phone - this rating ensures the highest protection against water.

Technical Specification

CAT S31 Black 4.7" 16GB 4G Dual SIM Unlocked & SIM Smartphone


Product Type Smartphone
Form Factor Touch - Rugged
Protection Shockproof, dustproof, waterproof
Integrated Components Rear-facing camera, front-facing camera, audio player, voice recorder, navigation
Width 74.42 mm
Depth 12.6 mm
Height 146 mm
Weight 200 g
SAR Value 1.649 W/kg (body) / 0.799 W/kg (head)


Technology WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G
Service Provider Not specified
Operating System Android 7.0 Nougat
Navigation GPS, A-GPS, GLONASS, BeiDou
SIM Card Type Nano SIM
SIM Card Qty Dual-SIM
Input Device Multi-touch, capacitive

Messaging & Internet

Messaging Services SMS, MMS
Supported Social Networks and Blogs Yes


Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE
2G Band GSM 850/900/1800/1900
3G UMTS Band Band 1, Band 2, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD
Wireless Interface IEEE 802.11b/g/n, Bluetooth 4.1

Phone Features

Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, ambient light sensor, proximity sensor, digital compass
Android Enterprise Recommended Yes
Additional Features Dual microphones, Wet Touchscreen Operation, Glove Touchscreen Operation


Type Qualcomm
Processor Number MSM8909
Processor Core Qty Quad-core


Internal Memory Capacity 16 GB
Supported Flash Memory Cards microSDHC, microSDXC - up to 128 GB

Front Camera

Sensor Resolution 2 Megapixel
Focus Adjustment Focus free

Rear Camera

Sensor Resolution 8 Megapixel
Focus Adjustment Automatic
Light Source LED flash


Type LCD display
Technology IPS
Diagonal Size 4.7"
Display Resolution 1280 x 720 pixels
Display Format HD
Protection Corning Gorilla Glass 3 (scratch resistant glass)
Features Super Bright Display


Connector Type Micro-USB - 5 pin Micro-USB Type B ¦ Headset jack - mini-phone 3.5mm


Technology Lithium Ion
Capacity 4000 mAh
Talk Time 1800 minutes
Standby Time 912 hours
Run Time Details Talk: up to 1800 min ¦ Standby: up to 912 hrs


Compliant Standards MIL-STD 810G, IP68
Included Accessories Power adapter

Manufacturer Warranty

Service & Support Limited warranty - 2 years

Environmental Parameters

Max Depth of Water Resistance 1.2 m
Max Height of Shock Resistance 1.8 m
Min Operating Temperature -30 °C
Max Operating Temperature 55 °C

Product Reviews

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CAT S31 Black 4.7" 16GB 4G Dual SIM Unlocked & SIM Smartphone

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CAT S31 Black 4.7" 16GB 4G Dual SIM Unlocked & SIM Smartphone

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£ 191.38  inc. vat

£ 159.48 ex. vat

Finance from £17.18 a month. (14.9% APR) representative.
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    Add-ons and Accessories

    Memory Cards

    Samsung EVO Plus MB-MC128GA/EU 128GB Micro SDHC

    £18.62 inc. vat
    £19.78save £1.16
    £15.51 ex. vat
    £16.48save £0.97

    Bluetooth Speakers