In depth comparison and review of Vivo X20 Plus UD and CAT S31. 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 | Vivo X20 Plus UD | CAT S31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch - Rugged | |
| Height | 155.3 mm | 146 mm | Vivo X20 Plus UD has greater height than CAT S31. |
| Width | 80.1 mm | 74.42 mm | Vivo X20 Plus UD has greater width than CAT S31. |
| Depth | 7.5 mm | 12.6 mm | Vivo X20 Plus UD is narrower than Vivo X20 Plus UD. |
| Weight | 181.5 g | 200 g | Vivo X20 Plus UD is lighter than Vivo X20 Plus UD. |
| 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) | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
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 | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Vivo X20 Plus UD | CAT S31 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Super AMOLED | IPS | |
| Screen Size (Display Size) | 6.43" | 4.7" | Vivo X20 Plus UD has larger screen size than CAT S31. |
| Screen Resolution (Display Resolution) | 2160 x 1080 pixels | 1280 x 720 pixels | Vivo X20 Plus UD has better screen resolution than CAT S31. |
| Display Format | - | HD | |
| Pixel Density | 376 ppi | - | |
| Colour Depth | 16.7 million colours | - | |
| Display Enhancement Technology | - | Super Bright Display | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | Vivo X20 Plus UD | CAT S31 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 660 | Qualcomm | |
|---|---|---|---|
| Processor Number | MSM8956 | MSM8909 | |
| Clock Speed | 2.2 GHz | - | |
| Processor Core Qty | 8-core | Quad-core | Vivo X20 Plus UD has higher processor core quantity than CAT S31. |
| Graphics System (GPU) | Qualcomm ADRENO 512 | - |
| MEMORY | Vivo X20 Plus UD | CAT S31 |
|---|
| RAM | 4 GB | 2 GB | Vivo X20 Plus UD has more RAM than CAT S31. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 16 GB | Vivo X20 Plus UD has more internal memory than CAT S31. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSDXC - up to 128 GB |
| CAMERA | Vivo X20 Plus UD | CAT S31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 8 Megapixel | Vivo X20 Plus UD has better camera resolution than CAT S31. |
| Lens Aperture | F/1.8 | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | - | |
| Camera Modes | Panorama | - | |
| Face Recognition (Face ID) | Face detection | - | Vivo X20 Plus UD has face detection. |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1280 x 720 (720p) at 120 fps | |
| Camera Features (Functions) | Geotagging | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | - |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 12 Megapixel | 2 Megapixel | Vivo X20 Plus UD has better front camera resolution than CAT S31. |
| Lens Aperture (Front) | F/2.0 | - | |
| Focus Adjustment | - | Focus free | |
| Light Source (Front) | Flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - |
| BATTERY AND CHARGING | Vivo X20 Plus UD | CAT S31 |
|---|
| Battery Capacity (Battery Size) | 3900 mAh | 4000 mAh | CAT S31 has larger battery capacity than Vivo X20 Plus UD. |
|---|---|---|---|
| Standby Time | - | 912 hours | |
| Talk Time | - | 1800 minutes | |
| Run Time Details | - | Talk: up to 1800 min Standby: up to 912 hrs |
|
| Battery Technology | Lithium Ion | Lithium Ion |
| CELLULAR | Vivo X20 Plus UD | CAT S31 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Funtouch OS 3.2 (based on Android 7.1.1) | Android 7.0 Nougat | |
| Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Vivo X20 Plus UD | CAT S31 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 8, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 900, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 4.1 | |
| Bluetooth Profiles | A2DP | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Vivo X20 Plus UD | CAT S31 |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.264 | - | |
| Sound Enhancements | Hi-Fi Sound support | - |
| FEATURES | Vivo X20 Plus UD | CAT S31 |
|---|
| 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, proximity sensor, digital compass | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Security Devices | Fingerprint reader (under display) | - | |
| Additional Phone Features | Multitasking, Active noise-cancellation | Dual microphones, Wet Touchscreen Operation, Glove Touchscreen Operation | |
| Android Enterprise Recommended | - | Yes |
| OTHERS | Vivo X20 Plus UD | CAT S31 |
|---|
| Included Accessories | Power adapter | Power adapter | |
|---|---|---|---|
| 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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