In depth comparison and review of Realme C21 and HP Elite x3. 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 | Realme C21 | HP Elite x3 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 165.2 mm | 161.8 mm | Realme C21 has greater height than HP Elite x3. |
| Width | 76.4 mm | 83.5 mm | HP Elite x3 has greater width than Realme C21. |
| Depth | 8.9 mm | 7.8 mm | HP Elite x3 is narrower than Realme C21. |
| Weight | 190 g | 194 g | Realme C21 is lighter than Realme C21. |
| Body Colour | Cross black | Cross blue | Graphite with chrome | |
| Protection | - | Dustproof, waterproof | |
| Waterproof (Water-resistant) | - | Yes | HP Elite x3 is waterproof. |
| IP rating | - | IP67 | |
| Connector Type | Micro-USB Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | - |
| DISPLAY | Realme C21 | HP Elite x3 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | LCD | AMOLED | |
| Screen Size (Display Size) | 6.5" | 5.96" | Realme C21 has larger screen size than HP Elite x3. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2560 x 1440 pixels | HP Elite x3 has better screen resolution than Realme C21. |
| Display Format | HD+ | QHD | |
| Pixel Density | - | 494 ppi | |
| Aspect Ratio | 20:9 | - | |
| Max Brightness | 420 cd/m² | - | |
| Display Features | Mini-drop display | - | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 4 (scratch resistant glass) |
| PROCESSOR | Realme C21 | HP Elite x3 |
|---|
| Processor Type (CPU) | MediaTek Helio G35 | Qualcomm Snapdragon 820 | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2.15 GHz | Realme C21 has higher clock speed than HP Elite x3. |
| Processor Core Qty | 8-core | Quad-core | Realme C21 has higher processor core quantity than HP Elite x3. |
| 64-bit Architecture | - | Yes | HP Elite x3 has 64-bit architecture. |
| Graphics System (GPU) | PowerVR GE8320 | Qualcomm ADRENO 530 |
| MEMORY | Realme C21 | HP Elite x3 |
|---|
| RAM | LPDDR4X SDRAM - 3 GB | 4 GB | HP Elite x3 has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | HP Elite x3 has more internal memory than Realme C21. |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSDXC - up to 2 TB |
| CAMERA | Realme C21 | HP Elite x3 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 16 Megapixel | HP Elite x3 has better camera resolution than Realme C21. |
| Lens Aperture | F/2.2 | - | |
| Lens Construction | 5-element | - | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 4x | - | |
| Special Effects | HDR | - | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | - | |
| Light Source | LED flash | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) | |
| Camera Features (Functions) | 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 | 8 Megapixel | HP Elite x3 has better front camera resolution than Realme C21. |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| 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. |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) |
| BATTERY AND CHARGING | Realme C21 | HP Elite x3 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 4150 mAh | Realme C21 has larger battery capacity than HP Elite x3. |
|---|---|---|---|
| Wireless Charging Standards | - | WPC, PMA, Qi | |
| Battery Technology | - | Lithium polymer |
| CELLULAR | Realme C21 | HP Elite x3 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 10 | Windows 10 | |
| User Interface | Realme UI | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Realme C21 | HP Elite x3 |
|---|
| Data Transmission | FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, LTE Advanced | |
|---|---|---|---|
| 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 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | Band 1, Band 3, Band 19, Band 20, Band 26, Band 28, Band 38, Band 39, Band 40 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 4.0 | |
| NFC | - | Yes | HP Elite x3 has NFC reader for mobile payments. |
| Messaging Services | - | SMS, MMS |
| FEATURES | Realme C21 | HP Elite x3 |
|---|
| 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, magnetometer, light sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, pressure sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Super power saving mode, HyperEngine technology, Reverse charging | Wi-Fi Miracast, Audio by B&O PLAY, Snapdragon Audio + support, 3 integrated omni-directional microphones with HP Noise Cancellation Software, ENERGY STAR certified |
| OTHERS | Realme C21 | HP Elite x3 |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Headset, power adapter | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | MIL-STD 810G, IP67 |
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