Detailed comparison and review of OPPO R11 and CAT S31. 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 | OPPO R11 | CAT S31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch - Rugged | |
| Height | 154.5 mm | 146 mm | OPPO R11 has greater height than CAT S31. |
| Width | 74.8 mm | 74.42 mm | OPPO R11 has greater width than CAT S31. |
| Depth | 6.8 mm | 12.6 mm | OPPO R11 is narrower than OPPO R11. |
| Weight | 150 g | 200 g | OPPO R11 is lighter than OPPO R11. |
| Body Colour | Black | - | |
| 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 | 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 | OPPO R11 | CAT S31 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Full HD Super AMOLED | IPS | |
| Screen Size (Display Size) | 5.5" | 4.7" | OPPO R11 has larger screen size than CAT S31. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1280 x 720 pixels | OPPO R11 has better screen resolution than CAT S31. |
| Display Format | Full HD | HD | |
| Pixel Density | 401 ppi | - | |
| Max Brightness | 430 cd/m² | - | |
| Colour Depth | 16.7 million colours | - | |
| Display Enhancement Technology | - | Super Bright Display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | OPPO R11 | CAT S31 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 660 | Qualcomm | |
|---|---|---|---|
| Processor Number | - | MSM8909 | |
| Clock Speed | 2.2 GHz | - | |
| Processor Core Qty | 8-core | Quad-core | OPPO R11 has higher processor core quantity than CAT S31. |
| Graphics System (GPU) | Qualcomm ADRENO 512 | - |
| MEMORY | OPPO R11 | CAT S31 |
|---|
| RAM | 4 GB | 2 GB | OPPO R11 has more RAM than CAT S31. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 16 GB | OPPO R11 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 | OPPO R11 | CAT S31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution | 20 Megapixel | 8 Megapixel | OPPO R11 has better camera resolution than CAT S31. |
| Lens Aperture | F/2.6 | - | |
| Lens Construction | 6-element | - | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 2x | - | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, Professional mode, portrait mode | - | |
| Face Recognition (Face ID) | Face detection | - | OPPO R11 has face detection. |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1280 x 720 (720p) at 120 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 16 Megapixel | - | |
|---|---|---|---|
| Lens Type (2nd Camera) | Wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/1.7 | - | |
| Lens Element Qty (2nd Camera) | 5-element | - | |
| Camera Features (2nd Camera) | 5-piece lens | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 20 Megapixel | 2 Megapixel | OPPO R11 has better front camera resolution than CAT S31. |
| Lens Aperture (Front) | F/2.0 | - | |
| Focus Adjustment | - | Focus free | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - |
| BATTERY AND CHARGING | OPPO R11 | CAT S31 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 4000 mAh | CAT S31 has larger battery capacity than OPPO R11. |
|---|---|---|---|
| Fast Charging Technology | VOOC rapid charging system | - | OPPO R11 has fast charging technology. |
| Standby Time | - | 912 hours | |
| Talk Time | - | 1800 minutes | |
| Run Time Details | - | Talk: up to 1800 min Standby: up to 912 hrs |
|
| Battery Technology | Lithium polymer | Lithium Ion |
| CELLULAR | OPPO R11 | CAT S31 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 3.1 (based on Android 7.1) | Android 7.0 Nougat | |
| Navigation | A-GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | OPPO R11 | CAT S31 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, 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 | |
| 3G UMTS Frequency | - | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, 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 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, 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 4.2 | Bluetooth 4.1 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OPPO R11 | CAT S31 |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.264 | - |
| FEATURES | OPPO R11 | 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, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Security Devices | Fingerprint reader | - | |
| Additional Phone Features | MIMO technology, Active noise-cancellation | Dual microphones, Wet Touchscreen Operation, Glove Touchscreen Operation | |
| Android Enterprise Recommended | - | Yes |
| OTHERS | OPPO R11 | CAT S31 |
|---|
| Included Accessories | Headset, carrying case, USB cable, power adapter, SIM card removal tool | 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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