Specs summary


The CAT S40's screen is 4.7 inches with 540 x 960 pixels resolution.


There is a Qualcomm MSM8909 Quad core 1.1 GHz processor (CPU).


The phone runs on the Android 5.1 Lollipop operating system (OS).

8+ MP
You can take photos or capture video with the phone's onboard 8+ megapixel camera. There is also a secondary front facing camera with 2+ megapixels resolution.
16 GB

Internal memory is 16 GB. An external, MicroSD, MicroSDHC, microSDXC (up to 64 GB) expansion slot is available for increased storage capacity.


The phone is powered by a Lithium-Ion (Li-Ion), 3000 mAh battery. Caterpillar's performance ratings are 39 days standby time, 1080 minutes (2G).

The waterproof, durable Cat S40 is strong enough for harsh environments, but its poor cameras and slow performance hold this Android phone back.

- Cherlynn Low , Tom's Guide 

It handles abuse like a pro and delivers a modestly powerful Android experience all at the same time.

- Eric M. Zeman , Phone Scoop 

Reviews (6.4/10 Avg. rating)

Tom's Guide

A solid phone that can take a beating, so long as you don’t mind some lag

from Tom's Guide

Built to withstand harsh environments, the S40 is certainly one of the most rugged phones we've tested, surviving everything from drops to dunks. It also offers solid battery life. But its lackluster cameras and low-res display make the $400 price harder to swallow.

If you don’t need something that’s as sturdy as the S40, consider the Droid Maxx 2, which has superior cameras, better performance and a sharper screen. Note that the Droid is just water-resistant, not waterproof like the Cat S40.

Those willing to splurge should take a good look at the $549 Gal... Full review


Fort Knox guarding fool’s gold

from Pocketnow

This phone is an absolute tank that can stand up to any torture you care to put it through. The rubberized/metal outer shell laughs in the face of danger. That is all great. But the performance hit from the insides make this phone hard to recommend. Even the price isn’t that great compared to a similarly spec’ed phone and an Otterbox case. A few hundred dollars more and you’ll find a phone in the Galaxy S6 Active that may not be as bulletproof as this phone, but delivers a much better experience than the one you’ll find in Caterpiller’s latest.

As it... Full review

Phone Scoop

Designed to take a beating and still get you to your meeting on time

from Phone Scoop

The CAT S40 fulfills its mission: it's a rugged smartphone that handles bumps, bruises, and a bath, all while delivering a core Android smartphone experience.

I like the overall design of the phone, which is tough as nails. Many people will appreciate the waterproof form factor and the S40's ability to serve as a hockey puck. The screen is decent and signal performance is good on AT&T's network, but call quality could have been better. Battery life is excellent.

The base Android platform functioned perfectly well, though CAT did little to dress up the operating sys... Full review

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CAT S40 - Unboxing!


CAT S40 destruction test


CAT S40 - Drop Test!


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