Sony XPERIA X Performance Dual vs. Realme C21

Phone Comparison, Reviews and Tests

In depth comparison and review of Sony XPERIA X Performance Dual 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.

Phone Specifications Comparison

Sony XPERIA X Performance Dual vs. Realme C21 Comparison Chart
DESIGN AND DIMENSIONS Sony XPERIA X Performance Dual Realme C21
Product Type Smartphone Smartphone
Manufacturer Model Number F8132 -
Form Factor Touch Touch
Height 144 mm 165.2 mm Realme C21 has greater height than Sony XPERIA X Performance Dual.
Width 70 mm 76.4 mm Realme C21 has greater width than Sony XPERIA X Performance Dual.
Depth 8.7 mm 8.9 mm Sony XPERIA X Performance Dual is narrower than Sony XPERIA X Performance Dual.
Weight 165 g 190 g Sony XPERIA X Performance Dual is lighter than Sony XPERIA X Performance Dual.
Body Colour Graphite black | Lime gold | White Cross black | Cross blue
Protection Splashproof, waterproof -
Waterproof (Water-resistant) Yes - Sony XPERIA X Performance Dual is waterproof.
IP rating IP68 -
Connector Type Headset jack - mini-phone 3.5mm
Micro-USB - 5 pin Micro-USB Type B
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 X Performance Dual Realme C21
Display Type LCD display LCD display
Display Technology IPS LCD
Screen Size (Display Size) 5" 6.5" Realme C21 has larger screen size than Sony XPERIA X Performance Dual.
Screen Resolution (Display Resolution) 1920 x 1080 pixels 1600 x 720 pixels Sony XPERIA X Performance Dual has better screen resolution than Realme C21.
Display Format Full HD HD+
Pixel Density 441 ppi -
Aspect Ratio - 20:9
Max Brightness - 420 cd/m²
Colour Depth 16.7 million colours -
Display Enhancement Technology Super Vivid mode -
Display Features 2.5D curved glass Mini-drop display
Display Protection (Screen Protector) Scratch-resistant glass -
PROCESSOR Sony XPERIA X Performance Dual Realme C21
Processor Type (CPU) Qualcomm MediaTek Helio G35
Processor Number MSM8996 -
Clock Speed 2.2 GHz 2.3 GHz Realme C21 has higher clock speed than Sony XPERIA X Performance Dual.
Processor Core Qty Quad-core 8-core Realme C21 has higher processor core quantity than Sony XPERIA X Performance Dual.
64-bit Architecture Yes - Sony XPERIA X Performance Dual has 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 530 PowerVR GE8320
MEMORY Sony XPERIA X Performance Dual Realme C21
RAM 3 GB LPDDR4X SDRAM - 3 GB Both phones have the same RAM size.
Internal Memory Size (Storage Capacity) 64 GB 32 GB Sony XPERIA X Performance Dual has more internal memory than Realme C21.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 200 GB microSD
CAMERA Sony XPERIA X Performance Dual Realme C21
MAIN CAMERA
Number of Main Cameras 1 3
Sensor Resolution 23 Megapixel 13 Megapixel Sony XPERIA X Performance Dual has better camera resolution than Realme C21.
Sensor Name Sony Exmor RS sensor -
Lens Type Wide-angle lens -
Lens Aperture F/2.0 F/2.2 Sony XPERIA X Performance Dual has better lens aperture than Sony XPERIA X Performance Dual.
Lens Construction - 5-element
Focus Adjustment Automatic Automatic
Minimum Focal Length (Focal Distance) 24 mm -
Digital Zoom 8x 4x Sony XPERIA X Performance Dual has better digital zoom than Realme C21.
Special Effects Night Scene, Creative effect HDR
HDR Mode Auto HDR mode -
Camera Modes Red-Eye Reduction, Sweep Panorama, AR Effect mode, SteadyShot, manual mode, Timeshift video 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, Face in Picture - Sony XPERIA X Performance Dual has face detection.
Light Source LED light LED flash
Video Resolutions 1920 x 1080 (1080p) 1920 x 1080 (1080p) at 30 fps
Camera Features (Functions) Quick Launch, Superior Auto, Object tracking, Scene recognition, Sound Photo, Hybrid Auto focus, Sticker Creator 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) 13 Megapixel 5 Megapixel Sony XPERIA X Performance Dual has better front camera resolution than Realme C21.
Sensor Name (Front) Sony Exmor RS sensor -
Lens Type (Front) Wide-angle lens -
Lens Aperture (Front) F/2.0 F/2.2 Sony XPERIA X Performance Dual has better front lens aperture than Sony XPERIA X Performance Dual.
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 Sony XPERIA X Performance Dual Realme C21
Battery Capacity (Battery Size) 2700 mAh 5000 mAh Realme C21 has larger battery capacity than Sony XPERIA X Performance Dual.
Battery Technology Lithium Ion -
CELLULAR Sony XPERIA X Performance Dual 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 6.0.1 (Marshmallow) Android 10
User Interface - Realme UI
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS Sony XPERIA X Performance Dual 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 12, Band 13, Band 17, Band 19, Band 20, Band 26, Band 28, Band 29, 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 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 700d, 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 IEEE 802.11b/g/n
Bluetooth Bluetooth 4.2 Bluetooth 5.0
Bluetooth Profiles HFP, HSP, OPP, PAN, SPP, GAP, A2DP, AVRCP, HID, GAVDP, PBAP, MAP, GATT, DID, HOGP -
NFC Yes - Sony XPERIA X Performance Dual has NFC reader for mobile payments.
WLAN Security WEP, WPA, WPA2, TKIP, AES, EAP SIM, EAP-TTLS/MSCHAPv2, EAP-AKA, EAP-TLS, PEAPv0/EAP-MSCHAPv2, PEAPv1/EAP-GTC -
Messaging Services SMS, MMS -
MEDIA Sony XPERIA X Performance Dual Realme C21
Supported Digital Audio Standards WAV, WMA, AAC, AIFF, ASF, PCM, Ogg Vorbis, AMR, MP3, FLAC, AAC-LC, XMF, LPCM, AAC +, OGG, eAAC+, MKA, MIDI, M4A, apt-X, DSF, DSDIFF, MXMF, AWB, IMY, RTTTL, RTX, OTA, MP4, ALAC, OPUS -
Supported Digital Video Standards MKV, AVI, XviD, MPEG-4, 3GP, H.264, H.263, M4V, WebM, VP8, VP9, H.265 -
Sound Enhancements Digital Sound Enhancement Engine (DSEE HX), 3D surround sound (VPT) -
FEATURES Sony XPERIA X Performance Dual 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, pedometer, digital compass, barometer, magnetometer, gyro sensor, motion sensor, geomagnetic sensor 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, Screen capture, intelligent typing (Gesture), Wi-Fi Miracast, battery STAMINA mode, Glove mode, TRILUMINOS display, X-Reality engine, Screen mirroring, Clear Audio+, Clear Bass, Dynamic normaliser, Smart Cleaning, Digital Noise Cancelling (DNC), Live Color LED, Hi-Res Audio, Low power audio playback, Smart backlight control, MirrorLink support, High-bandwidth Digital Content Protection (HDCP), S-Force Front surround, Read Mode, Alarm Clock, handwriting recognition, PS4 Remote Play Super power saving mode, HyperEngine technology, Reverse charging
OTHERS Sony XPERIA X Performance Dual Realme C21
Included Accessories USB cable, power adapter USB cable, power adapter, SIM card removal tool
Compliant Standards IP68, HAC (Hearing Aid Compatible) TUV Rheinland
Max Depth of Water Resistance 1.5 m -
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