In depth comparison and review of Sony XPERIA XZ2 Premium 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 | Sony XPERIA XZ2 Premium | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | H8166 | - | |
| Form Factor | Touch | Touch | |
| Height | 157 mm | 165.2 mm | Realme C21 has greater height than Sony XPERIA XZ2 Premium. |
| Width | 78.7 mm | 76.4 mm | Sony XPERIA XZ2 Premium has greater width than Realme C21. |
| Depth | 10.2 mm | 8.9 mm | Realme C21 is narrower than Sony XPERIA XZ2 Premium. |
| Weight | 235 g | 190 g | Realme C21 is lighter than Sony XPERIA XZ2 Premium. |
| Body Colour | Chrome black | Cross black | Cross blue | |
| Protection | Dustproof, water-resistant | - | |
| Waterproof (Water-resistant) | Yes | - | Sony XPERIA XZ2 Premium is waterproof. |
| IP rating | IP68, IP65 | - | |
| SAR Value | 0.64 W/kg (body), 0.54 W/kg (head) | - | |
| Connector Type | USB Type-C - 24 pin USB-C | Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Sony XPERIA XZ2 Premium | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | TRILUMINOS | LCD | |
| Screen Size (Display Size) | 5.8" | 6.5" | Realme C21 has larger screen size than Sony XPERIA XZ2 Premium. |
| Screen Resolution (Display Resolution) | 3840 x 2160 pixels | 1600 x 720 pixels | Sony XPERIA XZ2 Premium has better screen resolution than Realme C21. |
| Display Format | - | HD+ | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| HDR | Yes | - | Sony XPERIA XZ2 Premium has HDR. |
| Display Enhancement Technology | Dynamic Contrast Enhancement | - | |
| Display Features | - | Mini-drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Sony XPERIA XZ2 Premium | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 845 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | - | 2.3 GHz | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Sony XPERIA XZ2 Premium has 64-bit architecture. |
| Graphics System (GPU) | - | PowerVR GE8320 |
| MEMORY | Sony XPERIA XZ2 Premium | Realme C21 |
|---|
| RAM | 6 GB | LPDDR4X SDRAM - 3 GB | Sony XPERIA XZ2 Premium has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Sony XPERIA XZ2 Premium has more internal memory than Realme C21. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 400 GB | microSD |
| CAMERA | Sony XPERIA XZ2 Premium | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 19 Megapixel | 13 Megapixel | Sony XPERIA XZ2 Premium has better camera resolution than Realme C21. |
| Sensor Size | 1/2.3" | - | |
| Sensor Type | Exmor RS CMOS | - | |
| Lens Aperture | F/1.8 | F/2.2 | Sony XPERIA XZ2 Premium has better lens aperture than Sony XPERIA XZ2 Premium. |
| Lens Construction | - | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | 25 mm | - | |
| Digital Zoom | 8x | 4x | Sony XPERIA XZ2 Premium has better digital zoom than Realme C21. |
| Special Effects | HDR, Creative effect | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Red-Eye Reduction, Panorama, AR Effect mode, SteadyShot, manual mode, Intelligent Active Mode, Superior Auto mode, low-light shots, Night scene mode, Super slow motion | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Face Recognition (Face ID) | Smile shutter | - | Sony XPERIA XZ2 Premium has face detection. |
| Light Source | LED light | LED flash | |
| Video Resolutions | 3840 x 2160 (4K), Super slow motion video 1280 x 720 (720p) at 960 fps, Super slow motion video 1920 x 1080 (1080p) at 960 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Quick Launch, Object tracking, G lens, Scene recognition, BIONZ image processing engine, Sound Photo, Quick Capture, Electronic Image Stabiliser (EIS), Stereo Audio Recording, Triple image sensing technology, Predictive Hybrid Autofocus, Predictive Capture, Motion Eye camera, 3x Clear image zoom, Anti-distortion shutter, Movie Creator, Autofocus burst | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 2 Megapixel | Sony XPERIA XZ2 Premium has better second camera resolution than Realme C21. |
|---|---|---|---|
| Sensor Type (2nd Camera) | Exmor RS CMOS | - | |
| Lens Aperture (2nd Camera) | F/1.6 | F/2.4 | Sony XPERIA XZ2 Premium has better second camera lens aperture than Sony XPERIA XZ2 Premium. |
| 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) | 13 Megapixel | 5 Megapixel | Sony XPERIA XZ2 Premium has better front camera resolution than Realme C21. |
| Sensor Size (Front) | 1/3.06" | - | |
| Sensor Name (Front) | Sony Exmor RS sensor | - | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Sony XPERIA XZ2 Premium has better front lens aperture than Sony XPERIA XZ2 Premium. |
| Lens Element Qty (Front) | - | 3-element | |
| Focus Adjustment | Automatic | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | SteadyShot, Intelligent Active Mode | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | |
| Face Recognition (Face ID) | - | Face recognition | Realme C21 has face detection. |
| Light Source (Front) | Display flash | - |
| BATTERY AND CHARGING | Sony XPERIA XZ2 Premium | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 3540 mAh | 5000 mAh | Realme C21 has larger battery capacity than Sony XPERIA XZ2 Premium. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | - | Sony XPERIA XZ2 Premium has fast charging technology. |
| Wireless Charging | Yes | - | Sony XPERIA XZ2 Premium can be charged wirelessly. |
| Wireless Charging Standards | Qi | - |
| CELLULAR | Sony XPERIA XZ2 Premium | 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 8.0 Oreo | Android 10 | |
| User Interface | - | Realme UI | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Sony XPERIA XZ2 Premium | 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 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 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 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | - | Sony XPERIA XZ2 Premium has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Sony XPERIA XZ2 Premium | Realme C21 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AIFF, ASF, PCM, Ogg Vorbis, AMR, MP3, FLAC, AAC-LC, XMF, LPCM, AAC +, eAAC+, MKA, MIDI, M4A, apt-X, DSF, DSDIFF, DSD, LDAC, MXMF, AWB, IMY, RTTTL, RTX, OTA, MP4, ALAC, OPUS, 3GPP, M4V, AAC-ELD, ADTS, 3GPP2, MPEG 2 TS, WAVE | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, AVI, MPEG-4, MPEG-2, 3GP, H.264, H.263, M4V, TS, WebM, 3G2, VP8, VP9, H.265, 3GPP, 3GPP2 | - | |
| Sound Enhancements | Digital Sound Enhancement Engine (DSEE HX), S-Force Front surround, Clear Audio+, 3D surround sound (VPT) | - |
| FEATURES | Sony XPERIA XZ2 Premium | 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, proximity sensor, magnetometer, light sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | TTY compatible, DLNA Certified, Text-to-Speech (text recognition), sharing media via DLNA, intelligent typing (SWIFTKEY), intelligent typing (Gesture), Wi-Fi Miracast, Glove mode, TRILUMINOS display, Multi Window, X-Reality engine, MIMO technology, Google Voice typing function, Screen mirroring, Clear Audio+, Clear Bass, Dynamic normaliser, Digital Noise Cancelling (DNC), Ultra STAMINA Mode, Live Color LED, Hi-Res Audio, Low power audio playback, Smart backlight control, High-bandwidth Digital Content Protection (HDCP), Wi-Fi Passpoint, S-Force Front surround, Alarm Clock, PS4 Remote Play, Noise suppression, Smart cleaner, Qnovo Adaptive Charging, Battery Care, Smart Lock, STAMINA Mode, Screen zooming, Sony BRAVIA TV technology, Automatic Headphone Optimisation (AHO), Virtual Phones Technology (VPT), Xperia Actions, Automatic headset compensation, Smart Stamina 3.0, Dynamic vibration system, 3D Creator | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | Sony XPERIA XZ2 Premium | Realme C21 |
|---|
| Included Accessories | Power adapter, USB-C to 3.5 jack adapter | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | IP68, IP65, HAC (Hearing Aid Compatible) | TUV Rheinland | |
| Max Depth of Water Resistance | 1 m | - |
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