Cat S31 vs Cat S30: Which Rugged Phone Reigns Supreme?

Looking for a phone that can withstand the toughest conditions? Cat phones are renowned for their durability, and the S31 and S30 are two popular choices. But which one is right for you? This detailed comparison will break down the differences to help you decide.
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🏆 Quick Verdict

The Cat S31 edges out the S30 thanks to its slightly faster processor and potentially improved software support. Both offer exceptional ruggedness and battery life, making them ideal for outdoor enthusiasts and those working in demanding environments. The S30 remains a strong contender, especially if budget is a primary concern.

PHONES
Phone Names Cat S31 Cat S30
Network
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100 - EUHSDPA 850 / 900 / 2100 - Global
4G bands1, 2, 3, 5, 7, 8, 20 - EU1, 3, 7, 8, 20 - Global
SpeedHSPA 42.2/5.76 Mbps, LTE Cat4 150/50 MbpsHSPA, LTE Cat4 150/50 Mbps
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
 2, 3, 4, 5, 7, 12, 17 - USA2, 4, 5, 7, 17 - North America
Launch
Announced2017, September. Released 2017, October2015, September. Released 2015, September
StatusDiscontinuedDiscontinued
Body
Dimensions146 x 74.4 x 12.6 mm (5.75 x 2.93 x 0.50 in)141.9 x 72.7 x 13.3 mm (5.59 x 2.86 x 0.52 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIMNano-SIM
Weight200 g (7.05 oz)181 g (6.38 oz)
 IP68 dust/water resistant (up to 1.2m for 30 min) Drop-to-concrete resistance from up to 1.8m MIL-STD-810G compliantIP68 dust/water resistant (up to 1m for 60 min) Drop-to-concrete resistance from up to 1.8m MIL-STD-810G compliant
Display
ProtectionCorning Gorilla Glass 3Corning Gorilla Glass 3
Resolution720 x 1280 pixels, 16:9 ratio (~312 ppi density)480 x 854 pixels, 16:9 ratio (~218 ppi density)
Size4.7 inches, 60.9 cm2 (~56.1% screen-to-body ratio)4.5 inches, 55.8 cm2 (~54.1% screen-to-body ratio)
TypeTFTTFT
Platform
CPUQuad-core 1.3 GHz Cortex-A7Quad-core 1.1 GHz Cortex-A7
ChipsetQualcomm MSM8909 Snapdragon 210 (28 nm)Qualcomm MSM8909 Snapdragon 210 (28 nm)
GPUAdreno 304Adreno 304
OSAndroid 7.0 (Nougat)Android 5.1 (Lollipop)
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Internal16GB 2GB RAM8GB 1GB RAM
 eMMC 4.5eMMC 4.5
Main Camera
FeaturesLED flashLED flash
Single8 MP, AF5 MP, AF
Video720p@30fps1080p@60fps
Selfie camera
Single2 MP2 MP
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth4.1, A2DP, LE4.1, A2DP, LE
NFCNoNo
PositioningGPS, GLONASS, BDSGPS, GLONASS
RadioFM radioFM radio
USBmicroUSB 2.0, OTGmicroUSB 2.0, OTG
WLANWi-Fi 802.11 b/g/nWi-Fi 802.11 b/g/n, hotspot
Features
SensorsAccelerometer, proximity, compassAccelerometer, proximity, compass
Battery
Stand-by-Up to 936 h
Talk time-Up to 18 h
TypeLi-Ion 4000 mAh, non-removableLi-Ion 3000 mAh, non-removable
Misc
ColorsBlackBlack
Models-S30
PriceAbout 330 EURAbout 340 EUR

Cat S31

  • Slightly faster processor
  • Potentially longer software support
  • Rugged and durable design
  • Excellent battery life

  • Higher price than S30
  • Camera quality is basic

Cat S30

  • More affordable
  • Rugged and durable design
  • Excellent battery life
  • Reliable for basic tasks

  • Slightly slower processor
  • Potentially shorter software support
  • Camera quality is basic

Display Comparison

Both the Cat S31 and S30 feature a 5-inch IPS LCD display with a resolution of 720 x 1280 pixels. While the displays are similar in size and resolution, the S31 may offer slightly improved color accuracy and brightness due to potential software optimizations. However, the ruggedness of both screens is the primary selling point.

Camera Comparison

Both phones feature an 8MP rear camera and a 2MP front camera. Image quality is generally acceptable for a rugged phone in this price range, but don't expect flagship-level performance. Low-light performance will be limited on both devices. The S31 might have slightly better image processing due to its newer chipset.

Performance

The key difference lies in the CPU clock speed. The Cat S31 boasts a 1.3 GHz quad-core Cortex-A7 processor, while the S30 has a 1.1 GHz version. This translates to a noticeable, albeit not massive, performance boost on the S31, particularly when multitasking or running more demanding applications. Both phones will handle basic tasks without issue.

Battery Life

Both phones are equipped with a 4000mAh battery, providing excellent battery life. Expect all-day usage even with moderate to heavy use. The rugged design also contributes to efficient thermal management, further extending battery life.

Buying Guide

The Cat S31 is ideal for users who prioritize a bit more performance and potentially longer software updates. It's a good choice for those who frequently use demanding apps or games. The Cat S30 is perfect for users who need a reliable, rugged phone for basic communication and tasks, and want to save some money. Both are excellent choices for construction workers, outdoor adventurers, and anyone needing a durable device.

Frequently Asked Questions

❓ Is the Cat S31 waterproof?
Yes, both the Cat S31 and S30 are IP68 rated, meaning they are dustproof and waterproof up to 1.5 meters for 30 minutes.
❓ Can I run demanding games on the Cat S31?
While the Cat S31's processor is slightly faster, neither phone is designed for high-end gaming. You can play less demanding games, but don't expect smooth performance on graphically intensive titles.