In depth comparison and review of Google Nexus 5X and Realme C21. 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 | Google Nexus 5X | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 147 mm | 165.2 mm | Realme C21 has greater height than Google Nexus 5X. |
| Width | 72.6 mm | 76.4 mm | Realme C21 has greater width than Google Nexus 5X. |
| Depth | 7.9 mm | 8.9 mm | Google Nexus 5X is narrower than Google Nexus 5X. |
| Weight | 136 g | 190 g | Google Nexus 5X is lighter than Google Nexus 5X. |
| Body Colour | White | Carbon | Ice | Ice white | Quartz | Cross black | Cross blue | |
| Body Material | Injection moulded polycarbonate | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.696 W/kg (body), 0.564 W/kg (head) | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Google Nexus 5X | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | LCD | |
| Screen Size (Display Size) | 5.2" | 6.5" | Realme C21 has larger screen size than Google Nexus 5X. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | Google Nexus 5X has better screen resolution than Realme C21. |
| Display Format | Full HD | HD+ | |
| Pixel Density | 423 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Display Features | In-Cell Display Technology | Mini-drop display | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 3 (scratch resistant glass) | - |
| PROCESSOR | Google Nexus 5X | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 808 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 1.8 GHz | 2.3 GHz | Realme C21 has higher clock speed than Google Nexus 5X. |
| Processor Core Qty | 6-core | 8-core | Realme C21 has higher processor core quantity than Google Nexus 5X. |
| 64-bit Architecture | Yes | - | Google Nexus 5X has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 418 | PowerVR GE8320 |
| MEMORY | Google Nexus 5X | Realme C21 |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 3 GB | Realme C21 has more RAM than Google Nexus 5X. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | Realme C21 has more internal memory than Google Nexus 5X. |
| Supported Flash Memory Cards (Expandable Memory) | - | microSD |
| CAMERA | Google Nexus 5X | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12.3 Megapixel | 13 Megapixel | Realme C21 has better camera resolution than Google Nexus 5X. |
| Lens Aperture | F/2.0 | F/2.2 | Google Nexus 5X has better lens aperture than Google Nexus 5X. |
| Lens Construction | - | 5-element | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Google Nexus 5X has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Digital Zoom | - | 4x | |
| Special Effects | - | HDR | |
| HDR Mode | HDR+ | - | |
| Camera Modes | - | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 3840 x 2160 (4K) | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Photo sphere | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Camera Functions (2nd Camera) | - | B&W lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 5 Megapixel | Both phones have the same front camera resolution. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Google Nexus 5X has better front lens aperture than Google Nexus 5X. |
| Lens Element Qty (Front) | - | 3-element | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | |
| Face Recognition (Face ID) | - | Face recognition | Realme C21 has face detection. |
| BATTERY AND CHARGING | Google Nexus 5X | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 2700 mAh | 5000 mAh | Realme C21 has larger battery capacity than Google Nexus 5X. |
|---|---|---|---|
| Standby Time | 590 hours | - | |
| Talk Time | 1380 minutes | - | |
| Run Time Details | Talk (GSM): up to 1380 min Talk (WCDMA): up to 1140 min Standby (GSM): up to 590 hrs Standby (WCDMA): up to 710 hrs Standby (LTE): up to 710 hrs |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Google Nexus 5X | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0 (Marshmallow) | Android 10 | |
| User Interface | - | Realme UI | |
| Intelligent Assistant | Google Now | - | |
| Navigation | GPS, A-GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Google Nexus 5X | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | 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 4, Band 5, Band 7, Band 8, Band 9, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, 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 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 1800, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, 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 | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, SPP, GAP, GOEP, A2DP, HID, SAP, GAVDP, PBAP, MAP, HOGP | - | |
| NFC | Yes | - | Google Nexus 5X has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Google Nexus 5X | Realme C21 |
|---|
| Supported Digital Audio Standards | AAC, PCM, Ogg Vorbis, AMR, MP3, FLAC, AAC +, eAAC+, MIDI, OPUS | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.264, H.263, HEVC, VP8, VP9 | - |
| FEATURES | Google Nexus 5X | Realme C21 |
|---|
| 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, barometer, gyro sensor, hall sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Android Beam, Noise Cancellation Technology, Google Caller ID, MIMO technology, Three microphones, Android Sensor Hub | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | Google Nexus 5X | Realme C21 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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