---
product_id: 89558835
title: "CAT S31 Rugged Waterproof Smartphone - Grey"
brand: "cat"
price: "€ 7.19"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.fi/products/89558835-cat-s31-rugged-waterproof-smartphone-grey
store_origin: FI
region: Finland
---

# Waterproof up to 1.2m for 35 mins 4000mAh battery with 38 days standby Drop & dust proof rugged design CAT S31 Rugged Waterproof Smartphone - Grey

**Brand:** cat
**Price:** € 7.19
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ The smartphone that works as hard as you do — no compromises.

## Quick Answers

- **What is this?** CAT S31 Rugged Waterproof Smartphone - Grey by cat
- **How much does it cost?** € 7.19 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/89558835-cat-s31-rugged-waterproof-smartphone-grey)

## Best For

- cat enthusiasts

## Why This Product

- Trusted cat brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual SIM & Android 7.0:** Flexible connectivity with dual SIM support on a reliable Android platform
- • **Built to Brave the Elements:** Rugged, dustproof, and drop-resistant for unstoppable durability
- • **Glove & Wet Finger Friendly:** 4.7” HD IPS screen optimized for outdoor use and glove operation
- • **Power That Outlasts Your Day:** Massive 4000mAh battery delivers up to 38 days standby and 15 hours talk time
- • **Stay Connected, Rain or Shine:** Waterproof design lets you work worry-free in wet conditions

## Overview

The CAT S31 is a rugged, waterproof smartphone designed for professionals who demand durability and reliability. Featuring a 4.7” HD display optimized for wet and gloved use, a powerful 4000mAh battery with up to 38 days standby, and a tough build that resists drops and dust, it’s engineered to keep you connected in the harshest environments.

## Description

The Cat S31 smartphone is built to survive. Its high quality rugged materials mean you can drop it, dirty it, or dunk it in water and your S31 will keep on working for you. It's packed with features that help in harsh or outdoor environments including a screen optimized for use in Direct sunlight or when wet. Never lose power again with a 4000 mAh battery that lasts. The Cat S31 is a truly rugged phone that can handle whatever’s thrown at it.

Review: Good rugged phone - Dropped the phone thrice .no damage,washed the phone with running water still no damage.overall good phone
Review: Na - All reviews poor

## Features

- Dust and drop proof, with a scratch-resistant screen that works with a wet hand or with gloves on. It keeps going whatever’s thrown at it.
- The Cat S31 handles water without a worry, completely waterproof up to 1.2m for 35 minutes
- 4.7” HD 720 IPS, wet finger/glove on working technology*, Super Bright Display
- Powerful 4000 mAh non-removable Lithium Ion battery provides up to 38 days standby time and 15 hours of 3G Talk time
- caterpillar, Caterpillar Phone, Rugged phone, cat phone, cat mobile, Cat s31, cat s31 mobile, water proof, thermal camera

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075MNKBFQ |
| Audio Jack | 3.5 mm |
| Batteries | Lithium Metal batteries required. (included) |
| Battery Power Rating | 4000 |
| Colour | grey |
| Connectivity technologies | 4G |
| Customer Reviews | 3.7 3.7 out of 5 stars (478) |
| Date First Available | 16 October 2018 |
| Device interface - primary | Touchscreen |
| Display technology | LCD |
| Form factor | Bar |
| GPS | False |
| Generic Name | Smart Phone |
| Item Dimensions LxWxH | 7.4 x 1.3 x 14.6 Centimeters |
| Item Weight | 200 g |
| Item model number | S31 |
| Manufacturer | Bullitt Mobile Ltd, Bullitt Mobile Ltd |
| Net Quantity | 1 Count |
| OS | Android 7.0 |
| Other camera features | Front - 2MP Fixed Focus, Rear - 8MP Autofocus, LED flash |
| Other display features | Wireless |
| Packer | Faxtel SYstems India Pvt Ltd |
| Phone Standby Time (with data) | 38 Hours |
| Phone Talk Time | 15 Hours |
| Product Dimensions | 7.44 x 1.26 x 14.6 cm; 200 g |
| RAM | 2 GB |
| Resolution | 720 x 1280 |
| Special features | Dual SIM |
| Whats in the box | 1 Mobile and Charger |
| Wireless communication technologies | Cellular |

## Product Details

- **Brand:** CAT
- **CPU Model:** Snapdragon
- **Memory Storage Capacity:** 16 GB
- **Operating System:** Android 7.0
- **Screen Size:** 4.7 Inches

## Images

![CAT S31 Rugged Waterproof Smartphone - Grey - Image 1](https://m.media-amazon.com/images/I/81LX1yzh5ML.jpg)
![CAT S31 Rugged Waterproof Smartphone - Grey - Image 2](https://m.media-amazon.com/images/I/61qRnUtJ-HL.jpg)
![CAT S31 Rugged Waterproof Smartphone - Grey - Image 3](https://m.media-amazon.com/images/I/61FKBtNHm3L.jpg)
![CAT S31 Rugged Waterproof Smartphone - Grey - Image 4](https://m.media-amazon.com/images/I/617mIF8hTQL.jpg)
![CAT S31 Rugged Waterproof Smartphone - Grey - Image 5](https://m.media-amazon.com/images/I/61KPjiH4SBL.jpg)

## Questions & Answers

**Q: Esta desbloqueado ?**
A: si

**Q: Has this cell phone the certification of waterproof and military standard for shock and drop proof?**
A: yes

**Q: Which carriers will this phone work with in the Philippines?**
A: No tengo experiencia con ese modelo pero si tengo el S41 y no tengo problema alguno con el equipo

**Q: Funciona con la compañia mexicana telcel o at&t de méxico?**
A: No se que tecnología usan en México, si es GSM no hay ningún problema.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good rugged phone
*by A***A on 17 July 2021*

Dropped the phone thrice .no damage,washed the phone with running water still no damage.overall good phone

### ⭐ Na
*by H***A on 15 June 2019*

All reviews poor

### ⭐⭐⭐⭐⭐ Rugged and seamless
*by G***N on 5 February 2019*

If you want any gadget that would last forever then this is the one. Absolutely rugged and seamless,bought for thermal camera.

## Frequently Bought Together

- Cat S31 Unlocked mobile, Black
- CAT S75 128GB 5G SIM Free Smartphone - Black
- Caterpillar CAT S42 H+, Dual, 32GB 3GB, Black

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**Shop now:** [https://www.desertcart.fi/products/89558835-cat-s31-rugged-waterproof-smartphone-grey](https://www.desertcart.fi/products/89558835-cat-s31-rugged-waterproof-smartphone-grey)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-26*