In depth comparison and review of CAT S31 and Xiaomi POCO F3. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | CAT S31 | Xiaomi POCO F3 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch - Rugged | Touch | |
| Height | 146 mm | 163.7 mm | Xiaomi POCO F3 has greater height than CAT S31. |
| Width | 74.42 mm | 76.4 mm | Xiaomi POCO F3 has greater width than CAT S31. |
| Depth | 12.6 mm | 7.8 mm | Xiaomi POCO F3 is narrower than CAT S31. |
| Weight | 200 g | 196 g | Xiaomi POCO F3 is lighter than CAT S31. |
| Body Colour | - | Night black | |
| Body Material | - | Corning Gorilla Glass 5 | |
| 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) | 0.599 W/kg (head), 0.843 W/kg (body), 1.95 W/kg (limb) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | CAT S31 | Xiaomi POCO F3 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | AMOLED | |
| Screen Size (Display Size) | 4.7" | 6.67" | Xiaomi POCO F3 has larger screen size than CAT S31. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2400 x 1080 pixels | Xiaomi POCO F3 has better screen resolution than CAT S31. |
| Display Format | HD | Full HD+ | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 1300 cd/m² | |
| Contrast Ratio | - | 5000000:1 | |
| HDR | - | Yes | Xiaomi POCO F3 has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | Super Bright Display | - | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 360 Hz | |
| Display Features | - | DCI-P3 Wide colour gamut, MEMC technology, Sunlight display 3.0 | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | CAT S31 | Xiaomi POCO F3 |
|---|
| Processor Type (CPU) | Qualcomm | Qualcomm Snapdragon 870 | |
|---|---|---|---|
| Processor Number | MSM8909 | - | |
| Clock Speed | - | 3.2 GHz | |
| Processor Core Qty | Quad-core | 8-core | Xiaomi POCO F3 has higher processor core quantity than CAT S31. |
| Graphics System (GPU) | - | Qualcomm ADRENO 650 |
| MEMORY | CAT S31 | Xiaomi POCO F3 |
|---|
| RAM | 2 GB | LPDDR5 SDRAM - 8 GB | Xiaomi POCO F3 has more RAM than CAT S31. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 256 GB | Xiaomi POCO F3 has more internal memory than CAT S31. |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | - |
| CAMERA | CAT S31 | Xiaomi POCO F3 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 8 Megapixel | 48 Megapixel | Xiaomi POCO F3 has better camera resolution than CAT S31. |
| Lens Aperture | - | F/1.79 | |
| Pixel Size | - | 1.6 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Camera Modes | - | Slow Shutter, Night Mode 2.0, One-Click AI Cinema, Magic Zoom, Time Freeze, Night Time-lapse, Parallel World, Freeze Frame Video | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1280 x 720 (720p) at 120 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1920 x 1080 (1080p) at 960 fps, Slo-mo video 1280 x 720 (720p) at 960 fps | |
| Camera Features (Functions) | - | AI Triple camera, 4-in-1 to 1.6μm Super Pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 119 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Tele-macro lens | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Features (3rd Camera) | - | AF (3cm-7cm) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 2 Megapixel | 20 Megapixel | Xiaomi POCO F3 has better front camera resolution than CAT S31. |
| Lens Aperture (Front) | - | F/2.45 | |
| Focus Adjustment | Focus free | - | |
| Camera Modes (Front) | - | Night mode, Movie frame |
| BATTERY AND CHARGING | CAT S31 | Xiaomi POCO F3 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 4520 mAh | Xiaomi POCO F3 has larger battery capacity than CAT S31. |
|---|---|---|---|
| Recharge Time (Charging Time) | - | 52 min | |
| Standby Time | 912 hours | 268 hours | CAT S31 has longer standby time than Xiaomi POCO F3. |
| Talk Time | 1800 minutes | - | |
| Run Time Details | Talk: up to 1800 min Standby: up to 912 hrs |
Standby: up to 268 hrs Gaming: up to 10 hrs Playback (video): up to 14 hrs Playback (Music): up to 149 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | CAT S31 | Xiaomi POCO F3 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Xiaomi POCO F3 has more advanced generation mobile network. |
| Operating System | Android 7.0 Nougat | - | |
| User Interface | - | MIUI 12 | |
| Payment Technology | - | Google Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo, NavIC |
| COMMUNICATIONS | CAT S31 | Xiaomi POCO F3 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 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 12, Band 17, Band 20, Band 28, Band 38, Band 40, Band 41, Band 66 | |
| 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 700a, FDD 700b, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac/ax, Infrared (IR) | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.1 | |
| NFC | - | Yes | Xiaomi POCO F3 has NFC reader for mobile payments. |
| Modem | - | Snapdragon X55 5G | |
| Messaging Services | SMS, MMS | - |
| MEDIA | CAT S31 | Xiaomi POCO F3 |
|---|
| Sound Enhancements | - | Dolby Atmos sound technology, Hi-Res audio certified | |
|---|---|---|---|
| Video Enhancements | - | HDR10 |
| FEATURES | CAT S31 | Xiaomi POCO F3 |
|---|
| 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, proximity sensor, digital compass, gyroscope, 360° ambient light sensor | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Dual microphones, Wet Touchscreen Operation, Glove Touchscreen Operation | Infrared remote control, Three microphones, LiquidCool Technology 1.0 Plus, dual stereo speakers, X-axis linear vibration motor | |
| Android Enterprise Recommended | Yes | - |
| OTHERS | CAT S31 | Xiaomi POCO F3 |
|---|
| Included Accessories | Power adapter | Power adapter, SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, protective case | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G, IP68 | SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification | |
| 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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