CAT launches two super rugged smartphones, "built to survive"

Both are follow-ups to the S30 and S40, respectively, and both are not only durable—bearing an IP68 rating for dust- and water-resistance—but are also made to last days on one charge. The S31 is equipped with a 4000 mAh battery, while the S41 boasts a massive 5000 mAh battery that also doubles as a power bank to charge other devices, using the USB Battery Share connector.
The S41 features a 5-inch 1080p display and 3GB of RAM, backed with a MediaTek octa-core CPU clocked at 2.3GHz and 32GB of internal storage (expandable up to 2TB with SD cards). Around the back, it sports an 8MP camera coupled with a 2MP selfie shooter up front.
The S31 is smaller, outfitted with a 4.7-inch 720p display. It has a 1.3GHz quad-core Qualcomm processor at its heart, coupled with 2GB of RAM and 16 GB of internal memory (expandable via the microSD card slot).
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