In depth comparison and review of Sony XPERIA XA Ultra 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 XA Ultra | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | F3211 | - | |
| Form Factor | Touch | Touch | |
| Height | 164 mm | 165.2 mm | Realme C21 has greater height than Sony XPERIA XA Ultra. |
| Width | 79 mm | 76.4 mm | Sony XPERIA XA Ultra has greater width than Realme C21. |
| Depth | 8.4 mm | 8.9 mm | Sony XPERIA XA Ultra is narrower than Sony XPERIA XA Ultra. |
| Weight | 202 g | 190 g | Realme C21 is lighter than Sony XPERIA XA Ultra. |
| Body Colour | White | Graphite black | Lime gold | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.426 W/kg (body), 0.718 W/kg (head) | - | |
| Integrated Components | FM radio | - | |
| 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 | Single-SIM | Dual-SIM |
| DISPLAY | Sony XPERIA XA Ultra | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | TFT | LCD | |
| Screen Size (Display Size) | 6" | 6.5" | Realme C21 has larger screen size than Sony XPERIA XA Ultra. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | Sony XPERIA XA Ultra has better screen resolution than Realme C21. |
| Display Format | Full HD | HD+ | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | - | Mini-drop display | |
| Display Protection (Screen Protector) | Scratch-resistant glass | - |
| PROCESSOR | Sony XPERIA XA Ultra | Realme C21 |
|---|
| Processor Type (CPU) | MediaTek | MediaTek Helio G35 | |
|---|---|---|---|
| Processor Number | MT6755 | - | |
| Clock Speed | 2 GHz | 2.3 GHz | Realme C21 has higher clock speed than Sony XPERIA XA Ultra. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Sony XPERIA XA Ultra has 64-bit architecture. |
| Graphics System (GPU) | Mali T860 MP2 | PowerVR GE8320 |
| MEMORY | Sony XPERIA XA Ultra | Realme C21 |
|---|
| RAM | 3 GB | LPDDR4X SDRAM - 3 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | Realme C21 has more internal memory than Sony XPERIA XA Ultra. |
| User Memory | 10 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 200 GB | microSD |
| CAMERA | Sony XPERIA XA Ultra | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 21.5 Megapixel | 13 Megapixel | Sony XPERIA XA Ultra has better camera resolution than Realme C21. |
| Sensor Name | Sony Exmor RS IMX230 sensor | - | |
| Lens Aperture | - | F/2.2 | |
| Lens Construction | - | 5-element | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Sony XPERIA XA Ultra has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 5x | 4x | Sony XPERIA XA Ultra has better digital zoom than Realme C21. |
| Special Effects | Creative effect | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, Sweep Panorama, AR Effect mode, Style Portrait | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Face Recognition (Face ID) | Face detection, smile shutter, Face in Picture, face recognition | - | Sony XPERIA XA Ultra 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, Object tracking, Sound Photo, Phase Detect Auto-Focus (PDAF), Hybrid Auto focus, Hand Shutter, auto scene recognition, Sticker Creator, Night Portrait Flash | 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) | 16 Megapixel | 5 Megapixel | Sony XPERIA XA Ultra has better front camera resolution than Realme C21. |
| Sensor Name (Front) | Sony Exmor RS IMX234 sensor | - | |
| Lens Aperture (Front) | - | F/2.2 | |
| Lens Element Qty (Front) | - | 3-element | |
| Focus Adjustment | Automatic | - | |
| 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. |
| Light Source (Front) | LED flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - | |
| Camera Features (Front) | Optical Image Stabilisation (OIS) | - |
| BATTERY AND CHARGING | Sony XPERIA XA Ultra | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 2700 mAh | 5000 mAh | Realme C21 has larger battery capacity than Sony XPERIA XA Ultra. |
|---|---|---|---|
| Standby Time | 708 hours | - | |
| Talk Time | 796 minutes | - | |
| Run Time Details | Talk (GSM): up to 796 min Standby (GSM): up to 558 hrs Talk (WCDMA): up to 713 min Standby (WCDMA): up to 708 hrs Standby (LTE): up to 671 hrs Playback (Music): up to 65 hrs Playback (video): up to 8.3 hrs |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Sony XPERIA XA Ultra | 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 | |
| Navigation | GPS, A-GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Sony XPERIA XA Ultra | 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 5, Band 7, Band 8, Band 20 | 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 850, FDD 2600, FDD 900, FDD 800 DD | 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 | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, SPP, GAP, GOEP, A2DP, HID, SAP, AVCTP, AVDTP, BNEP, GAVDP, PBAP, MAP, DIP, RFCOMM, GATT, FMP, PXP, HOGP | - | |
| NFC | Yes | - | Sony XPERIA XA Ultra 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 | Google+ Hangouts, SMS, MMS | - |
| MEDIA | Sony XPERIA XA Ultra | Realme C21 |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+, apt-X | - | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, MPEG-4, H.264 | - | |
| Sound Enhancements | 3D surround sound (VPT) | - |
| FEATURES | Sony XPERIA XA Ultra | Realme C21 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, hall sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | - | Fingerprint reader | |
| Additional Phone Features | Radio Data Service (RDS), DLNA Certified, sharing media via DLNA, xLOUD technology, Mobile BRAVIA Engine 2, Clear Phase technology, Clear Audio+, Clear Bass, Dynamic normaliser, Active noise-cancellation | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | Sony XPERIA XA Ultra | Realme C21 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland | |
| Max Depth of Water Resistance | 1.5 m | - |
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