Cat S31
$220
Overview
Cat S31 is a budget Android smartphone released in 2017 with a 4.7-inch TFT, Snapdragon 210 chipset, 8 main camera, and 4000 mAh battery.
Priced at $220, it targets users seeking budget performance.
Specifications of Cat S31
The display of Cat S31 measures 4.7 inches with TFT technology. Peak brightness reaches 350 nits for excellent outdoor visibility. The screen renders at 720x1280 pixels resolution.
The camera system of Cat S31 features 1 rear cameras: 8 main. Video recording supports up to 720p.
The battery of Cat S31 has 4000mAh capacity with 5 wired charging. A full charge takes approximately 240 min minutes.
The performance of Cat S31 is powered by the Snapdragon 210 chipset with Adreno 304 GPU. Geekbench scores reach 150 single-core and 400 multi-core. AnTuTu benchmark achieves 25000.
The memory of Cat S31 offers 2GB RAM with 16GB storage options. RAM uses LPDDR3 technology. Storage is 16GB 2GB RAM. Storage can be expanded via microSD card.
The connectivity of Cat S31 includes 5G support, Wi-Fi Wi-Fi 802.11 b/g/n, and Bluetooth 4.1.
The build of Cat S31 weighs 200.0g with Plastic frame and Textured back. Water and dust resistance is rated IP68. Dimensions measure 146 x 74.4 x 12.6 mm (5.75 x 2.93 x 0.50 in).
The software of Cat S31 runs Android 7.0 (Nougat) with Stock Android. Software support extends 2 years through 2028.
Compare Cat S31
Frequently Asked Questions about Cat S31
Cat S31 has a 8 camera suitable for casual photography. For professional photography, consider phones with higher-resolution sensors.
Cat S31 with Snapdragon 210 can handle casual gaming. For intensive gaming, consider phones with flagship chipsets.
Cat S31 receives 2 years of updates through 2028. Consider this when planning long-term device usage.
Yes, Cat S31 supports 5G connectivity with both Sub-6GHz and mmWave bands for maximum network compatibility and fastest speeds. It works with major 5G carriers globally.
Yes, Cat S31 is water resistant with IP68 rating. It can withstand submersion in 1.5 meters of fresh water for 30 minutes. Avoid saltwater and high-pressure water.
Cat S31 has a 4000mAh battery. This provides full-day battery life with typical usage patterns.
Cat S31 at $220 is a budget device. It's worth buying if you prioritize affordability over premium features.
Cat S31 supports 5 wired charging with full charge in approximately 240 min minutes.
Cat S31 is available in 16GB storage options. Storage can be expanded via microSD card for additional capacity.
Cat S31 has a 4.7-inch TFT with 60Hz refresh rate and 350 nits peak brightness. HDR support includes No.
Cat S31 in Category Rankings
See how Cat S31 ranks in these categories:
Verdict
The Cat S31 delivers practical value for users prioritizing affordability over premium features. Pick this phone for essential smartphone functionality, if you prioritize affordability while still needing core features.
Key Specifications
Display
4.7"
Main Camera
8
Chipset
Snapdragon 210
Full Specifications
Network
| Technology | GSM / HSPA / LTE |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Bands | HSDPA 850 / 900 / 1900 / 2100 - EU |
| 4G LTE Bands | 1, 2, 3, 5, 7, 8, 20 - EU |
| 5G Sub-6 Bands | |
| 5G mmWave Bands | |
| Speed | N/A |
| Carrier Aggregation | |
| SIM | Nano-SIM |
| Dual SIM Mode | Dual SIM |
| eSIM Support | |
| VoLTE Support | N/A |
| VoWiFi | N/A |
| NR CA Support |
Launch
| Announced | 2017 |
| Status | Discontinued |
| Availability | N/A |
| Model Variants | N/A |
| Launch Price | $350 |
Body & Design
| Dimensions (mm) | 146 x 74.4 x 12.6 mm (5.75 x 2.93 x 0.50 in) |
| Weight (g) | 200.0 |
| Build Materials | Plastic |
| Frame | Plastic |
| Back Finish | Textured |
| Colors | ["Black"] |
| IP Rating | IP68 |
| Rugged Certifications | MIL-STD-810G |
| Ingress Gaskets | N/A |
| Form Factor | Candybar |
| Hinge Type | N/A |
| Folded Dimensions | |
| Thermal Solution | Passive |
| Notification/Alert | |
| Haptics | Basic |
Display
| Panel Type | TFT |
| Size (inches) | 4.7 |
| Resolution (px) | 720x1280 pixels |
| Aspect Ratio | 16:9 |
| Pixel Density (ppi) | 312 |
| Screen-to-body Ratio (%) | 56.1 |
| Refresh Rate (Hz) | 60 |
| Adaptive Refresh Rate | |
| Touch Sampling Rate (Hz) | 60 |
| Peak Brightness (nits) | 350 |
| HDR Standards | |
| Color Gamut | sRGB |
| Color Depth | 16 |
| PWM Dimming (Hz) | N/A |
| Glass Protection | Corning Gorilla Glass 3 |
| Oleophobic Coating | N/A |
| Curvature | Flat |
| Always-on Display | |
| Display Driver IC | N/A |
| Cover Display |
Platform (SoC)
| OS at Launch | Android 7.0 (Nougat) |
| Update Policy | 2 years |
| Chipset | Snapdragon 210 |
| CPU | Quad-core 1.3 GHz Cortex-A7 |
| GPU | Adreno 304 |
| NPU/AI TOPs | N/A |
| ISP Features | Basic |
| Modem | Snapdragon X5 |
| Wi-Fi/Bluetooth Chip | N/A |
| Throttling Behavior | N/A |
| Geekbench Single-Core | 150 |
| Geekbench Multi-Core | 400 |
| AnTuTu Score | 25000 |
| 3DMark Scores | N/A |
Memory & Storage
| RAM | 2GB |
| RAM Type | LPDDR3 |
| Storage | 16GB |
| Storage Type | 16GB 2GB RAM |
| Storage Speed | eMMC 5.1 |
| Expandable Storage | |
| Slot Type | microSD |
| USB OTG | |
| Filesystem Encryption |
Main Camera System
| Rear Cameras | 1 |
| Main Sensor | 8 |
| Main Sensor Size | 1/4 inch |
| Main Sensor Model | N/A |
| Main Lens | f/2.2, 28mm |
| OIS | |
| Autofocus | Autofocus |
| Pixel Binning | |
| Ultrawide | N/A |
| Telephoto | N/A |
| Macro | N/A |
| Depth/ToF/LiDAR | |
| Flicker/Color Sensors | N/A |
| Flash | LED |
| Video Resolution | 720p |
| HDR/Dolby Vision Video | |
| Video Codecs | H.264 |
| Slow Motion | |
| Video Stabilization | |
| Night Mode Features | |
| RAW/Pro Controls | N/A |
Selfie Camera
| Resolution | N/A |
| Sensor Size | 1/5 inch |
| Aperture | f/2.4 |
| AF/OIS | N/A |
| Secondary Front Cam | |
| Front Flash | |
| Video | 720p |
| HDR/Dolby Vision | N/A |
| Face Unlock |
Audio
| Loudspeakers | |
| 3.5mm Jack | |
| Hi-Res Audio | |
| Spatial Audio / Dolby Atmos | |
| Microphones | 1 |
| Bluetooth Codecs | aac |
| DAC/Amp |
Connectivity
| Wi-Fi | Wi-Fi 802.11 b/g/n |
| Wi-Fi Features | Wi-Fi 802.11 b/g/n |
| Bluetooth | 4.1 |
| NFC | |
| IR Blaster | |
| UWB | N/A |
| Positioning | GPS, GLONASS, BDS |
| Dual-Band GNSS | |
| FM Radio | |
| USB | Micro-USB |
| Display Out | |
| eSIM Capacity |
Sensors
| Fingerprint Sensor | N/A |
| 3D Face ID | N/A |
| Accelerometer | |
| Gyroscope | |
| Magnetometer | |
| Proximity Sensor | |
| Ambient Light | N/A |
| Barometer | |
| Thermo/Hygrometer | N/A |
| UV Sensor | N/A |
| Hall Sensor | |
| Color Temp Sensor | |
| Health Sensors | |
| Satellite SOS |
Battery & Charging
| Capacity (mAh) | 4000 |
| Type | Li-Ion 4000 mAh, non-removable |
| Removable | |
| Endurance Rating | N/A |
| Wired Charging | 5 |
| Wired Standard | USB-C |
| 0-50% Time (mins) | 120 min |
| Full Charge Time | 240 min |
| Wireless Charging | N/A |
| Wireless Standard | |
| Reverse Wireless | N/A |
| Reverse Wired | |
| Charger in Box | 5W |
| Battery Health Features | Basic |
Software
| OS at Launch | Android 7.0 (Nougat) |
| Update Window | 2 years |
| UI Skin / Launcher | Stock Android |
| Feature Drops | N/A |
| App Cloning | N/A |
| Game Mode | |
| Privacy Features | Basic |
| Accessibility | Basic |
| Satellite Messaging UI |
Miscellaneous
| In-Box Contents | Charger, Cable, Manual |
| Recycled Materials (%) | N/A |
| Repairability Score | N/A |
| Warranty | N/A |
Reviews & Ratings
186 ratings
Showing 3 of 186 reviews
Alex R.
2 weeks ago
Absolutely love the camera on this phone! The zoom is incredible and the photos are so crisp. Battery life is also a huge plus.
Ben C.
1 month ago
Great performance and beautiful display. My only complaint is that it feels a bit heavy, but you get used to it. Solid phone overall.
Chloe D.
3 months ago
The best phone I've ever owned. It's fast, the software is clean, and the build quality is top-notch. Highly recommend!