In depth comparison and review of HP Elite x3 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 | HP Elite x3 | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 161.8 mm | 165.2 mm | Realme C21 has greater height than HP Elite x3. |
| Width | 83.5 mm | 76.4 mm | HP Elite x3 has greater width than Realme C21. |
| Depth | 7.8 mm | 8.9 mm | HP Elite x3 is narrower than HP Elite x3. |
| Weight | 194 g | 190 g | Realme C21 is lighter than HP Elite x3. |
| Body Colour | Graphite/chrome | HP Graphite | Graphite with chrome | Cross black | Cross blue | |
| Protection | Dustproof, waterproof | - | |
| Waterproof (Water-resistant) | Yes | - | HP Elite x3 is waterproof. |
| IP rating | IP67 | - | |
| SAR Value | 0.602 W/kg (body), 0.98 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 | - | Dual-SIM |
| DISPLAY | HP Elite x3 | Realme C21 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | AMOLED | LCD | |
| Screen Size (Display Size) | 5.96" | 6.5" | Realme C21 has larger screen size than HP Elite x3. |
| Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 1600 x 720 pixels | HP Elite x3 has better screen resolution than Realme C21. |
| Display Format | QHD | HD+ | |
| Pixel Density | 494 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | 550 cd/m² | 420 cd/m² | HP Elite x3 has better display brightness than Realme C21. |
| Display Features | - | Mini-drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | - |
| PROCESSOR | HP Elite x3 | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 820 | MediaTek Helio G35 | |
|---|---|---|---|
| Processor Number | MSM8996 | - | |
| Clock Speed | 2.15 GHz | 2.3 GHz | Realme C21 has higher clock speed than HP Elite x3. |
| Processor Core Qty | Quad-core | 8-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) | Qualcomm ADRENO 530 | PowerVR GE8320 |
| MEMORY | HP Elite x3 | Realme C21 |
|---|
| RAM | LPDDR4 SDRAM - 4 GB | LPDDR4X SDRAM - 3 GB | HP Elite x3 has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | HP Elite x3 has more internal memory than Realme C21. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSD |
| CAMERA | HP Elite x3 | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 13 Megapixel | HP Elite x3 has better camera resolution than Realme C21. |
| Lens Aperture | F/2.2 | F/2.2 | Both phones have the same camera lens aperture. |
| Lens Construction | 6-element | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 4x | |
| Special Effects | - | HDR | |
| Camera Modes | Low-light shots | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Light Source | LED light | LED flash | |
| Still Image Resolutions | 4608 x 3456 | - | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | 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) | 8 Megapixel | 5 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) | 5-element | 3-element | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | Low-light shots | 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) at 30 fps | - |
| BATTERY AND CHARGING | HP Elite x3 | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 4150 mAh | 5000 mAh | Realme C21 has larger battery capacity than HP Elite x3. |
|---|---|---|---|
| Wireless Charging | Yes | - | HP Elite x3 can be charged wirelessly. |
| Wireless Charging Standards | WPC, PMA, Qi | - | |
| Standby Time | 500 hours | - | |
| Talk Time | 1980 minutes | - | |
| Run Time Details | Talk: up to 1980 min Standby: up to 500 hrs Playback (HD video): up to 13 hrs Continuous browsing: up to 14 hrs |
- | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | HP Elite x3 | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Windows 10 | Android 10 | |
| User Interface | - | Realme UI | |
| Intelligent Assistant | Cortana | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | HP Elite x3 | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE Advanced, FDD-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 2, Band 4, Band 5, Band 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 12, Band 17, Band 20, Band 29, Band 30 | 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 700a, FDD 700b, FDD 800 DD, FDD 700d, FDD 2300 WCS | 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 4.0 LE | Bluetooth 5.0 | |
| NFC | Yes | - | HP Elite x3 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| FEATURES | HP Elite x3 | 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, gyro sensor, hall sensor, pressure sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Fingerprint reader, eye scan | Fingerprint reader | |
| Additional Phone Features | Wi-Fi Miracast, MIMO technology, Audio by B&O PLAY, Snapdragon Audio + support, 3 integrated omni-directional microphones with HP Noise Cancellation Software, ENERGY STAR certified | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | HP Elite x3 | Realme C21 |
|---|
| Included Accessories | Power adapter, USB-C to USB-A cable | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | FIPS 140-2, MIL-STD 810G, IP67 | TUV Rheinland | |
| Max Operating Temperature | 55 °C | - | |
| Min Operating Temperature | -10 °C | - | |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
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