Side by side comparison and review of CAT S61 and Realme C31. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | CAT S61 | Realme C31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | RMX3501 | |
| Form Factor | Touch - Rugged | Touch | |
| Height | 163 mm | 164.7 mm | Realme C31 has greater height than CAT S61. |
| Width | 78 mm | 76.1 mm | CAT S61 has greater width than Realme C31. |
| Depth | 13 mm | 8.4 mm | Realme C31 is narrower than CAT S61. |
| Weight | 250 g | 197 g | Realme C31 is lighter than CAT S61. |
| Body Colour | - | Light silver | Dark green | |
| Body Material | Aluminium reinforced die-cast frame | - | |
| Protection | Dustproof, waterproof, sandproof, thermal protection, dirtproof, drop-proof, vibration-resistant, salt mist protection, pressure resistant | - | |
| Waterproof (Water-resistant) | Yes | - | CAT S61 is waterproof. |
| IP rating | IP68, IP69 | - | |
| SAR Value | 1.594 W/kg (body), 0.416 W/kg (head) | 1.147 W/kg (body), 0.957 W/kg (head), 2.663 W/kg (limb) | |
| Integrated Components | FM radio | - | |
| Connector Type | USB Type-C - 24 pin USB-C 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 S61 | Realme C31 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 5.2" | 6.5" | Realme C31 has larger screen size than CAT S61. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | CAT S61 has better screen resolution than Realme C31. |
| Display Format | Full HD | HD+ | |
| Aspect Ratio | - | 20:9 | |
| Colour Depth | - | 16.7 million colours | |
| Display Enhancement Technology | Super Bright Display | - | |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 120 Hz | |
| Display Features | - | Ultra-clear View | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | CAT S61 | Realme C31 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 630 | Unisoc | |
|---|---|---|---|
| Processor Number | - | T612 | |
| Clock Speed | 2.2 GHz | 1.82 GHz | CAT S61 has higher clock speed than Realme C31. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | CAT S61 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 508 | ARM Mali-G57 |
| MEMORY | CAT S61 | Realme C31 |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 4 GB + up to 7 GB virtual extension | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | CAT S61 | Realme C31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 13 Megapixel | CAT S61 has better camera resolution than Realme C31. |
| Lens Aperture | - | F/2.2 | |
| Lens Construction | - | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR | |
| Camera Modes | - | Burst mode, Panorama, Time-lapse mode, Pro mode, Portrait, Filter mode, Macro mode, Night Pro | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Name (2nd Camera) | FLIR Lepton | - | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | FLIR Thermal Camera, FLIR MSX image resolution, Live Streaming of thermal images | 4cm macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 0.3 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.8 | |
| Camera Functions (3rd Camera) | - | B&W lens |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 5 Megapixel | CAT S61 has better front camera resolution than Realme C31. |
| Lens Aperture (Front) | - | F/2.2 | |
| Lens Element Qty (Front) | - | 3-element | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Beauty mode, Filter mode | |
| Video Resolutions (Front) | - | 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Front) | - | AI Selfie |
| BATTERY AND CHARGING | CAT S61 | Realme C31 |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 5000 mAh | Realme C31 has larger battery capacity than CAT S61. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0 | - | CAT S61 has fast charging technology. |
| Talk Time | 2100 minutes | - | |
| Run Time Details | Talk (3G): up to 2100 min Standby: up to 888 hrs |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | CAT S61 | Realme C31 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.0 Oreo | Android 11 | |
| User Interface | - | Realme UI (R Edition) | |
| Payment Technology | Android Pay | - | |
| Navigation | GPS, GLONASS, Galileo, QZSS, SBAS, iZat | GPS, A-GPS, BeiDou, Galileo |
| COMMUNICATIONS | CAT S61 | Realme C31 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE, VoWiFi | GPRS, EDGE, HSPA+, 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 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 19, Band 20, Band 26, Band 28, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 3, 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 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, 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 | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | - | CAT S61 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| FEATURES | CAT S61 | Realme C31 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, barometer, gyro sensor, laser distance sensor, Indoor Air Quality Sensor (humidity & temperature) | Accelerometer, proximity sensor, magnetometer, gyro sensor, light sensor | |
| Security Devices | - | Fingerprint reader (side) | |
| Additional Phone Features | Notification LED, Wet Touchscreen Operation, Glove Touchscreen Operation, MSX technology, laser assisted distance measurement | MIMO technology, Ultra Power Saving Mode, Fast Charging |
| OTHERS | CAT S61 | Realme C31 |
|---|
| Included Accessories | Power adapter | SIM card removal tool, 10W charger, micro-USB cable | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G, IP68, IP69 | TUV Rheinland | |
| Max Depth of Water Resistance | 3 m | - | |
| Max Height of Shock Resistance | 1.8 m | - | |
| Max Operating Temperature | 55 °C | - | |
| Min Operating Temperature | -25 °C | - |
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