In depth comparison and review of Nokia 8.1 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 | Nokia 8.1 | Realme C21 |
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Product Type | Smartphone | Smartphone | |
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Form Factor | Touch | Touch | |
Height | 154.8 mm | 165.2 mm | Realme C21 has greater height than Nokia 8.1. |
Width | 75.76 mm | 76.4 mm | Realme C21 has greater width than Nokia 8.1. |
Depth | 7.97 mm | 8.9 mm | Nokia 8.1 is narrower than Nokia 8.1. |
Weight | 180 g | 190 g | Nokia 8.1 is lighter than Nokia 8.1. |
Body Colour | Blue/silver | Steel/copper | Cross black | Cross blue | |
Body Material | Metal frame | - | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 1.49 W/kg (body), 0.514 W/kg (head), 3.99 W/kg (limb) | - | |
Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Micro-USB Headset jack - mini-phone 3.5mm |
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SIM Card Type (Size) | Nano SIM | Nano SIM | |
SIM Card Qty | Dual-SIM | Dual-SIM |
DISPLAY | Nokia 8.1 | Realme C21 |
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Display Type | LCD display | LCD display | |
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Display Technology | PureDisplay | LCD | |
Screen Size (Display Size) | 6.18" | 6.5" | Realme C21 has larger screen size than Nokia 8.1. |
Screen Resolution (Display Resolution) | 2280 x 1080 pixels | 1600 x 720 pixels | Nokia 8.1 has better screen resolution than Realme C21. |
Display Format | Full HD+ | HD+ | |
Aspect Ratio | 18.7:9 | 20:9 | |
Max Brightness | - | 420 cd/m² | |
Contrast Ratio | 1500:1 | - | |
HDR | Yes | - | Nokia 8.1 has HDR. |
HDR Technology | HDR10 | - | |
Display Features | Edge-to-Edge screen | Mini-drop display |
PROCESSOR | Nokia 8.1 | Realme C21 |
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Processor Type (CPU) | Qualcomm Snapdragon 710 | MediaTek Helio G35 | |
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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 | - | Nokia 8.1 has 64-bit architecture. |
Graphics System (GPU) | - | PowerVR GE8320 |
MEMORY | Nokia 8.1 | Realme C21 |
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RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 3 GB | Nokia 8.1 has more RAM than Realme C21. |
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Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Nokia 8.1 has more internal memory than Realme C21. |
Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 400 GB | microSD |
CAMERA | Nokia 8.1 | Realme C21 |
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MAIN CAMERA |
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Number of Main Cameras | 2 | 3 | |
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Sensor Resolution | 12 Megapixel | 13 Megapixel | Realme C21 has better camera resolution than Nokia 8.1. |
Sensor Size | 1/2.55" | - | |
Lens Aperture | - | F/2.2 | |
Lens Construction | - | 5-element | |
Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) 2.0 | - | Nokia 8.1 has optical stabilisation. |
Focus Adjustment | Automatic | Automatic | |
Digital Zoom | - | 4x | |
Special Effects | Bokeh effect | HDR | |
Camera Modes | Pro Camera mode | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
Light Source | Dual Hi-Cri flash | LED flash | |
Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps | |
Camera Features (Functions) | Carl Zeiss optic, Dual-Sight mode, AI-powered imaging | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | 13 Megapixel | 2 Megapixel | Nokia 8.1 has better second camera resolution than Realme C21. |
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Lens Aperture (2nd Camera) | - | F/2.4 | |
Lens Element Qty (2nd Camera) | - | 3-element | |
Camera Functions (2nd Camera) | Depth camera | B&W lens |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
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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 |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 20 Megapixel | 5 Megapixel | Nokia 8.1 has better front camera resolution than Realme C21. |
Lens Aperture (Front) | - | F/2.2 | |
Lens Element Qty (Front) | - | 3-element | |
Focus Adjustment | Focus free | - | |
Special Effects (Front) | - | HDR | |
Camera Modes (Front) | Motion Photos | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | |
Face Recognition (Face ID) | - | Face recognition | Realme C21 has face detection. |
BATTERY AND CHARGING | Nokia 8.1 | Realme C21 |
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Battery Capacity (Battery Size) | 3500 mAh | 5000 mAh | Realme C21 has larger battery capacity than Nokia 8.1. |
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CELLULAR | Nokia 8.1 | Realme C21 |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | Android 9.0 Pie | Android 10 | |
User Interface | - | Realme UI | |
Intelligent Assistant | Google Assistant | - | |
Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
COMMUNICATIONS | Nokia 8.1 | Realme C21 |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, VoWiFi | FDD-LTE, TDD-LTE | |
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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 802.11b/g/n/ac | IEEE 802.11b/g/n | |
Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
NFC | Yes | - | Nokia 8.1 has NFC reader for mobile payments. |
Messaging Services | SMS, MMS | - |
MEDIA | Nokia 8.1 | Realme C21 |
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Supported Digital Audio Standards | Apt-X | - | |
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Sound Enhancements | Nokia OZO surround sound capture | - |
FEATURES | Nokia 8.1 | Realme C21 |
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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 | |
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Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
Security Devices | Fingerprint reader | Fingerprint reader | |
Additional Phone Features | Fast Charging, Smart Amplifier technology, Google Lens | Super power saving mode, HyperEngine technology, Reverse charging |
OTHERS | Nokia 8.1 | Realme C21 |
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Included Accessories | Headset, power adapter, SIM card removal tool, USB-C cable | USB cable, power adapter, SIM card removal tool | |
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Compliant Standards | - | TUV Rheinland |