Side by side comparison and review of ASUS ZenFone 4 (ZE554KL) 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 | ASUS ZenFone 4 (ZE554KL) | Realme C31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZE554KL | RMX3501 | |
| Form Factor | Touch | Touch | |
| Height | 155.36 mm | 164.7 mm | Realme C31 has greater height than ASUS ZenFone 4 (ZE554KL). |
| Width | 75.24 mm | 76.1 mm | Realme C31 has greater width than ASUS ZenFone 4 (ZE554KL). |
| Depth | 7.7 mm | 8.4 mm | ASUS ZenFone 4 (ZE554KL) is narrower than ASUS ZenFone 4 (ZE554KL). |
| Weight | 165 g | 197 g | ASUS ZenFone 4 (ZE554KL) is lighter than ASUS ZenFone 4 (ZE554KL). |
| Body Colour | Midnight black | Moonlight white | Light silver | Dark green | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.48 W/kg (body), 1.42 W/kg (head) | 1.147 W/kg (body), 0.957 W/kg (head), 2.663 W/kg (limb) | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
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 | ASUS ZenFone 4 (ZE554KL) | Realme C31 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | Super IPS+ | - | |
| Screen Size (Display Size) | 5.5" | 6.5" | Realme C31 has larger screen size than ASUS ZenFone 4 (ZE554KL). |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | ASUS ZenFone 4 (ZE554KL) has better screen resolution than Realme C31. |
| Display Format | Full HD | HD+ | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | 600 cd/m² | - | |
| Colour Depth | - | 16.7 million colours | |
| Display Enhancement Technology | Bluelight Filter for Eye Care, Splendid technology | - | |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 120 Hz | |
| Display Features | 2.5D Glass | Ultra-clear View | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass), smudge-resistant oleophobic coating | - |
| PROCESSOR | ASUS ZenFone 4 (ZE554KL) | Realme C31 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 630 | Unisoc | |
|---|---|---|---|
| Processor Number | - | T612 | |
| Clock Speed | 2.2 GHz | 1.82 GHz | ASUS ZenFone 4 (ZE554KL) 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 | - | ASUS ZenFone 4 (ZE554KL) has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 508 | ARM Mali-G57 |
| MEMORY | ASUS ZenFone 4 (ZE554KL) | Realme C31 |
|---|
| RAM | LPDDR4X SDRAM - 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) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | ASUS ZenFone 4 (ZE554KL) | Realme C31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 13 Megapixel | Realme C31 has better camera resolution than ASUS ZenFone 4 (ZE554KL). |
| Sensor Size | 1/2.55" | - | |
| Sensor Name | Sony Exmor RS IMX362 sensor | - | |
| Lens Aperture | F/1.8 | F/2.2 | ASUS ZenFone 4 (ZE554KL) has better lens aperture than ASUS ZenFone 4 (ZE554KL). |
| Lens Construction | 6-element | 5-element | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | - | ASUS ZenFone 4 (ZE554KL) has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | HDR | |
| Camera Modes | Panorama, Time-lapse mode, Pro mode, Beauty mode, Auto mode, super resolution mode, GIF animation function, portrait mode | Burst mode, Panorama, Time-lapse mode, Pro mode, Portrait, Filter mode, Macro mode, Night Pro | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 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 | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Functions) | 3-axis electronic image stabilisation, RAW image capture, Subject-Tracking Auto-Focus, PixelMaster 4.0 camera, 4-axis optical image stabilisation, 9 filters, Instant cameras switching, Dual Pixel Phase Detect Auto-Focus (PDAF) | AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 2 Megapixel | ASUS ZenFone 4 (ZE554KL) has better second camera resolution than Realme C31. |
|---|---|---|---|
| Lens Type (2nd Camera) | Wide-angle lens | - | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | - | 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 | ASUS ZenFone 4 (ZE554KL) has better front camera resolution than Realme C31. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | ASUS ZenFone 4 (ZE554KL) has better front lens aperture than ASUS ZenFone 4 (ZE554KL). |
| Lens Element Qty (Front) | - | 3-element | |
| Special Effects (Front) | Collage | HDR | |
| Camera Modes (Front) | Beauty mode, Auto mode, selfie panorama, GIF animation function, portrait mode, Smart beautification, Livestream beautification | Beauty mode, Filter mode | |
| Video Resolutions (Front) | - | 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Front) | PixelMaster camera, ASUS SelfieMaster technology, 9 filters | AI Selfie |
| BATTERY AND CHARGING | ASUS ZenFone 4 (ZE554KL) | Realme C31 |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 5000 mAh | Realme C31 has larger battery capacity than ASUS ZenFone 4 (ZE554KL). |
|---|---|---|---|
| Fast Charging Technology | ASUS Boost Master | - | ASUS ZenFone 4 (ZE554KL) has fast charging technology. |
| Standby Time | 552 hours | - | |
| Talk Time | 1800 minutes | - | |
| Run Time Details | Standby (4G): up to 552 hrs Talk (3G): up to 1800 min Playback (video): up to 16 hrs Continuous browsing (Wi-Fi): up to 18 hrs |
- | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | ASUS ZenFone 4 (ZE554KL) | 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 7.0 Nougat | Android 11 | |
| User Interface | ASUS ZenUI 4.0 | Realme UI (R Edition) | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, BeiDou, Galileo |
| COMMUNICATIONS | ASUS ZenFone 4 (ZE554KL) | Realme C31 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+ | 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 2, Band 3, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1800, 850, 800, 900, 800 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 18, Band 19, Band 20, Band 26, Band 28, Band 32, 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 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 1500 L, 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 802.11a/b/g/n/ac | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | - | ASUS ZenFone 4 (ZE554KL) has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | ASUS ZenFone 4 (ZE554KL) | Realme C31 |
|---|
| Sound Enhancements | DTS-HD Premium Sound, Hi-Res audio, DTS Headphone:X | - |
|---|
| FEATURES | ASUS ZenFone 4 (ZE554KL) | 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, gyro sensor, hall sensor, colour correction sensor | Accelerometer, proximity sensor, magnetometer, gyro sensor, light sensor | |
| Security Devices | - | Fingerprint reader (side) | |
| Additional Phone Features | Wi-Fi Miracast, Dual noise reduction microphones, Google Drive Storage (100 GB) (free for 2 years), NXP Smart AMP technology, ASUS Noise Reduction technology, Nano Molding Technology (NMT) | MIMO technology, Ultra Power Saving Mode, Fast Charging |
| OTHERS | ASUS ZenFone 4 (ZE554KL) | Realme C31 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, ASUS ZenEar with Mic, USB-C cable | SIM card removal tool, 10W charger, micro-USB cable | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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