Detailed comparison and review of CAT S31 and Xiaomi Redmi 9C. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | CAT S31 | Xiaomi Redmi 9C |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch - Rugged | Touch | |
| Height | 146 mm | 164.9 mm | Xiaomi Redmi 9C has greater height than CAT S31. |
| Width | 74.42 mm | 77.07 mm | Xiaomi Redmi 9C has greater width than CAT S31. |
| Depth | 12.6 mm | 9 mm | Xiaomi Redmi 9C is narrower than CAT S31. |
| Weight | 200 g | 196 g | Xiaomi Redmi 9C is lighter than CAT S31. |
| Body Colour | - | Sunrise orange | |
| Protection | Shockproof, dustproof, waterproof | - | |
| Waterproof (Water-resistant) | Yes | - | CAT S31 is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.649 W/kg (body), 0.799 W/kg (head) | 0.355 W/kg (head), 0.779 W/kg (body), 1.865 W/kg (limb) | |
| Integrated Components | - | FM radio | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | CAT S31 | Xiaomi Redmi 9C |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 4.7" | 6.53" | Xiaomi Redmi 9C has larger screen size than CAT S31. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1600 x 720 pixels | Xiaomi Redmi 9C has better screen resolution than CAT S31. |
| Display Format | HD | HD+ | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 400 cd/m² | |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | Super Bright Display | Blue light filter, Sunlight mode | |
| Display Features | - | Reading mode, Colour temperature adjustment, Dot Drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| PROCESSOR | CAT S31 | Xiaomi Redmi 9C |
|---|
| Processor Type (CPU) | Qualcomm | MediaTek Helio G35 | |
|---|---|---|---|
| Processor Number | MSM8909 | - | |
| Clock Speed | - | 2.3 GHz | |
| Processor Core Qty | Quad-core | 8-core | Xiaomi Redmi 9C has higher processor core quantity than CAT S31. |
| 64-bit Architecture | - | Yes | Xiaomi Redmi 9C has 64-bit architecture. |
| Graphics System (GPU) | - | PowerVR GE8320 |
| MEMORY | CAT S31 | Xiaomi Redmi 9C |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 3 GB | Xiaomi Redmi 9C has more RAM than CAT S31. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | Xiaomi Redmi 9C has more internal memory than CAT S31. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSD |
| CAMERA | CAT S31 | Xiaomi Redmi 9C |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 8 Megapixel | 13 Megapixel | Xiaomi Redmi 9C has better camera resolution than CAT S31. |
| Lens Aperture | - | F/2.2 | |
| Field of View (FoV) | - | 75.2 degree(s) | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR, Kaleidoscope | |
| Camera Modes | - | AI portrait mode, AI Beautify 5.0 | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi 9C has face detection. |
| Light Source | LED flash | Single tone LED flash | |
| Video Resolutions | 1280 x 720 (720p) at 120 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF), AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Camera Functions (2nd Camera) | - | Macro camera |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 2 Megapixel | 5 Megapixel | Xiaomi Redmi 9C has better front camera resolution than CAT S31. |
| Lens Aperture (Front) | - | F/2.2 | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | AI portrait mode, AI Beautify 5.0 | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi 9C has face detection. |
| Light Source (Front) | - | Display flash | |
| Camera Features (Front) | - | Self-timer, Palm shutter |
| BATTERY AND CHARGING | CAT S31 | Xiaomi Redmi 9C |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 5000 mAh | Xiaomi Redmi 9C has larger battery capacity than CAT S31. |
|---|---|---|---|
| Standby Time | 912 hours | - | |
| Talk Time | 1800 minutes | 1920 minutes | Xiaomi Redmi 9C has longer battery life when making calls than CAT S31. |
| Run Time Details | Talk: up to 1800 min Standby: up to 912 hrs |
Playback (audio): up to 167 hrs Playback (video): up to 21 hrs Talk: up to 1920 min Gaming: up to 10 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | CAT S31 | Xiaomi Redmi 9C |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 7.0 Nougat | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | CAT S31 | Xiaomi Redmi 9C |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 | |
| NFC | - | Yes | Xiaomi Redmi 9C has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | CAT S31 | Xiaomi Redmi 9C |
|---|
| Supported Digital Audio Standards | - | AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, MPEG4-ASP, MPEG-4 SP, H.264 BP, H.264 MP, H.264 HP |
| FEATURES | CAT S31 | Xiaomi Redmi 9C |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass | Accelerometer, ambient light sensor, distance sensor | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Additional Phone Features | Dual microphones, Wet Touchscreen Operation, Glove Touchscreen Operation | AI face unlock, HyperEngine technology | |
| Android Enterprise Recommended | Yes | - |
| OTHERS | CAT S31 | Xiaomi Redmi 9C |
|---|
| Included Accessories | Power adapter | USB cable, SIM card removal tool, 10W charger | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G, IP68 | - | |
| Max Depth of Water Resistance | 1.2 m | - | |
| Max Height of Shock Resistance | 1.8 m | - | |
| Max Operating Temperature | 55 °C | - | |
| Min Operating Temperature | -30 °C | - |
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