CAT S31 Rugged Smartphone Dual SIM/SIM Free

  • Unlocked for any Network

  • Dual-SIM standby

  • 4.7-inch HD (1280 x 720) screen

  • Long-lasting 4,000 mAh battery

  • IP68 rating - highly resistant to dust and water, shock

  • Bluetooth: v3.0 with A2DP

  • Android 7 Nougat

  • 8 MP camera with LED flash

  • 1.3 GHz Quad-core processor

  • Corning Gorilla Glass 3 (1.1mm thick)

  • Drop-proof to 1.8m

  • Condition: New with 24 month warranty

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Availability: In stock

Regular Price: €328.99

Special Price: €272.98

Product Description


The CAT S31 features a splash-proof rugged external housing, large 4.7 inch touchscreen display and runs on Android 7.0.

The CAT S31 with a large 4,000 mAh battery. This gives you up to 15 hours continuous talk time and up to 38 hours standby in standard conditions.

The 4.7-inch screen has been manufactured with high-quality scratch-resistant Corning® Gorilla® Glass 3. Finally, the handset has been drop proof tested onto concrete from, up to, 1.8 metres.

It's a waterproof phone that can be submerged for 35 minutes and up to 1.2 metres.

Impact Proof - survives drops of up to 1.8 meters.

It erases background noise with its noise cancelling microphone coupled with high quality speakers you can hear the caller and the caller can hear you loud and clear.

The S31 is suitable for most weather conditions: It can survive in temperatures as low as -25°C (-13°F) and as high as 55°C (131°F).

Military Standard 810G:

  • High Temperature 
  • Low Temperature 
  • Humidity 
  • Temperature Shock 
  • Category 4 Vibration 
  • Shock and Drop 
  • Salt Fog


  • Speed1.3GHz
  • Dual Core
  • Quad CoreYes
  • Make/ModelQualcomm MSM8909 Quad core
  • Other
Expansion SlotYes
  • TypeMicroSDXC
  • Capacity (Up to)128GB
Internal StorageYes
  • Capacity16GB
  • TouchscreenYes
  • Size4.7
  • TypeHD IPS LCD
  • Resolution 1280 x 720
  • OtherWet finger/glove on working technology/ Super Bright Display/Corning Gorilla Glass 3 (1.1mm thick)
  • Frequencies850 / 900 / 1800 / 1900 MHz
  • Speed
  • Frequencies850 / 900 / 1900 / 2100 MHz
  • Speed
  • Frequencies1, 2, 3, 5, 7, 8, 20
  • Speed
  • Version4.1
  • Functions
  • Version802.11 b/g/n
  • Version
  • DataMicro USB v2.0 - USB-OTG
  • PowerMicro USB v2.0
  • Audio3.5mm jack
  • Video OutYes, wireless via Miracast / Google Home
Device Controls
  • Keyboard
  • Optical Trackpad
  • Hardware ButtonsPower / Volume / Home / Recent app / Back / Volume up/down / Prgrammable Key
  • Other
  • Antenna TypeGPS / GLONASS / Beidou
  • A-GPSYes
  • Built-in SoftwareGoogle Maps
  • Megapixels8 MP
  • FlashAuto focus w/ LED Flash
  • Camera Lens
  • Other
Front Facing CameraYes
  • Type2 MP
  • AccelerometerYes
  • Proximity SensorYes
  • Digital CompassYes
  • GyroscopeYes
  • Light SensorYes
  • Formats
  • Recording
  • Formats1080p at 30fps
  • Recording720p at 30fps
Near Field Communication
FM RadioYes
  • Capacity4,000 mAh
  • TypeNon-removable Li-ion
  • Removable
Call Time
  • GSM
  • 3G
Standby Time
  • GSM
  • 3G
Dimensions146 x 74.42 x12.6mm
Weight 200g
SoftwareGoogle Play, Google App Suite
OtherIP68 certified: Waterproof up to 1.2m for 35mins, MIL-SPEC 810G, Shock and Drop, Operating Temp: -30°C (-22°F) to 55°C (131°F), Category 4 vibration
Warranty24 months

What’s in the Box:

• Cat S31 Rugged Phone
• Mains Charger/Adapter
• Micro USB cable

Additional Information

Additional Information

Custom Stock Status No


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Payment, Delivery & Returns

Delivery Costs
Delivery costs just €1.49 for orders up to €10, €1.89 for orders up to €15, €3.89 for orders from €15 up to €50 and €5.89 for all other orders, regardless of how many items ordered. Delivery is free for orders over €400.

We offer a variety of payment options for your convenience.

Credit Card or Debit Card Payment
We accept payment by Visa or MasterCard credit cards and Debit Cards. The payment will appear as 'Phone Solutions' on your credit card statement. use Realex Payments technology to accept and authorise credit and debit cards via our website.

At Phonesonline, we understand that our customers are concerned about the security of their debit and credit card details. We take significant steps to protect all your information, and especially your payment details, using the latest security technology. If you have any queries regarding the security of your card details, please do not hesitate to Contact Us. Please Note: For your security we do not store your credit card information on our database.

We also accept payment through Paypal using your credt card or PayPal account balance. PayPal is the internet's leading Payment system. Simply add your items to the shopping cart, then select PayPal on the shopping cart page to order using PayPal.

Please note, we only deliver to the credit card holders billing address.

Cheque/Postal Order Payment
If you would like to pay by cheque or Postal order, please use the Contact Us page to send us an email or call us to place your order.

Bank Transfer Payment
Bank Transfers are welcome for all orders.

You can choose Bank Transfer payment on the secure checkout page, or please call or email us with your requirements using the Contact Us page form to order by this method.

Returns Procedure

We at PhonesOnline believe that you will be completely satisfied with your purchase and provide a warranty on all products that we sell. If however you think that you have received a faulty/incorrect product, or have simply decided that a product is not for you, we request that you contact us by phone (012011983), by email ([email protected]) or through our contact page: Contact Us. In the case of faulty products we can often resolve the problem over the phone (012011983), by email ([email protected]) or through our contact page: Contact Us.

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