In depth comparison and review of ASUS Zenfone 8 and Nokia G21. 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 | ASUS Zenfone 8 | Nokia G21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZS590KS | - | |
| Form Factor | Touch | Touch | |
| Height | 148 mm | 164.6 mm | Nokia G21 has greater height than ASUS Zenfone 8. |
| Width | 68.5 mm | 75.9 mm | Nokia G21 has greater width than ASUS Zenfone 8. |
| Depth | 8.9 mm | 8.5 mm | Nokia G21 is narrower than ASUS Zenfone 8. |
| Weight | 169 g | 190 g | ASUS Zenfone 8 is lighter than ASUS Zenfone 8. |
| Body Colour | Obsidian black | Nordic blue | Dusk | |
| Body Material | - | Polycarbonate | |
| Protection | Drop-proof, water-resistant, dust-resistant | - | |
| Waterproof (Water-resistant) | Yes | - | ASUS Zenfone 8 is waterproof. |
| IP rating | IP68, IP65 | - | |
| SAR Value | 1.582 W/kg (body), 1.412 W/kg (head), 3.498 W/kg (limb) | 1.048 W/kg (body), 0.339 W/kg (head) | |
| Integrated Components | FM radio | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | ASUS Zenfone 8 | Nokia G21 |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | AMOLED | - | |
| Screen Size (Display Size) | 5.9" | 6.5" | Nokia G21 has larger screen size than ASUS Zenfone 8. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 1600 x 720 pixels | ASUS Zenfone 8 has better screen resolution than Nokia G21. |
| Display Format | Full HD+ | HD+ | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | 1100 cd/m² | 400 cd/m² | ASUS Zenfone 8 has better display brightness than Nokia G21. |
| HDR | Yes | - | ASUS Zenfone 8 has HDR. |
| HDR Technology | HDR10+ | - | |
| Display Enhancement Technology | DC Dimming | - | |
| Display Refresh Rate | 120 Hz | 90 Hz | ASUS Zenfone 8 has better refresh rate than Nokia G21. |
| Touch Sampling Rate | 240 Hz | 180 Hz | |
| Display Features | Always-on display, Glove Touch, Delta-E < 1, 107% NTSC, 151.9% sRGB, 112% DCI-P3 | V-notch display, High brightness mode | |
| Display Protection (Screen Protector) | Corning Gorilla Glass Victus (scratch resistant glass) | - |
| PROCESSOR | ASUS Zenfone 8 | Nokia G21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 888 5G | Unisoc | |
|---|---|---|---|
| Processor Number | - | T606 | |
| Clock Speed | 2.842 GHz | 1.6 GHz | ASUS Zenfone 8 has higher clock speed than Nokia G21. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 660 | - |
| MEMORY | ASUS Zenfone 8 | Nokia G21 |
|---|
| RAM | LPDDR5 SDRAM - 8 GB | 4 GB | ASUS Zenfone 8 has more RAM than Nokia G21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 64 GB | ASUS Zenfone 8 has more internal memory than Nokia G21. |
| Memory Interface | UFS 3.1 | - | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 512 GB |
| CAMERA | ASUS Zenfone 8 | Nokia G21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 64 Megapixel | 50 Megapixel | ASUS Zenfone 8 has better camera resolution than Nokia G21. |
| Sensor Size | 1/1.7" | 1/2.76" | Nokia G21 has better camera sensor size than ASUS Zenfone 8. |
| Sensor Type | - | CMOS | |
| Sensor Name | Sony Exmor RS IMX686 sensor | - | |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | 78.3 degree(s) | - | |
| Pixel Size | 1.6 μm | 0.64 μm | ASUS Zenfone 8 has larger camera pixel size than Nokia G21. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | ASUS Zenfone 8 has optical stabilisation. |
| Minimum Focal Length (Focal Distance) | 26.6 mm | - | |
| Camera Modes | Slow motion video, Time-lapse mode, Pro mode | - | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 24 fps, Slo-mo video 3840 x 2160 (4K) at 120 fps | - | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), 3-axis electronic image stabilisation, 4-axis optical image stabilisation, Motion tracking, Quad Bayer technology, 2x1 On-Chip Lens (OCL) | AI imaging technology |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 2 Megapixel | ASUS Zenfone 8 has better second camera resolution than Nokia G21. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/2.55" | - | |
| Sensor Name (2nd Camera) | Sony Exmor RS IMX363 sensor | - | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | - | |
| Pixel Size (2nd Camera) | 1.4 μm | - | |
| Focal Length Equivalent to 35mm Camera | 14.3 | - | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | Real-time distortion correction, 4cm macro photography, Dual Phase Detect Auto-Focus (PDAF) | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Camera Functions (3rd Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 12 Megapixel | 8 Megapixel | ASUS Zenfone 8 has better front camera resolution than Nokia G21. |
| Sensor Name (Front) | Sony Exmor RS IMX663 sensor | - | |
| Lens Aperture (Front) | F/2.4 | - | |
| Pixel Size (Front) | 1.22 μm | - | |
| Focus Adjustment | Automatic | - | |
| Camera Modes (Front) | Portrait | - | |
| Camera Features (Front) | Dual Pixel technology, EIS video stabilisation, Dual Phase Detect Auto-Focus (PDAF) | - |
| BATTERY AND CHARGING | ASUS Zenfone 8 | Nokia G21 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 5050 mAh | Nokia G21 has larger battery capacity than ASUS Zenfone 8. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0, Power Delivery 3.0 | - | ASUS Zenfone 8 has fast charging technology. |
| Run Time Details | - | Mixed usage: up to 72 hrs |
| CELLULAR | ASUS Zenfone 8 | Nokia G21 |
|---|
| Technology | WCDMA (UMTS) / GSM | - | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 4G | ASUS Zenfone 8 has more advanced generation mobile network. |
| Operating System | Android 11 | Android 11 | |
| User Interface | ASUS ZenUI 8.0 | - | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC | GPS, A-GPS, GLONASS, Galileo |
| COMMUNICATIONS | ASUS Zenfone 8 | Nokia G21 |
|---|
| Data Transmission | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+, Gigabit LTE, 5G NR FR1 | 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 3, Band 4, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1800, 1700, 850, 800, 900, 800 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 34, Band 38, Band 39, Band 40, Band 41, Band 42 | 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 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| 5G NR Band | N1, n2, n3, n5, n7, n8, n20, n28, n38, n77, n78, n12 | - | |
| 5G NR Frequency | FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 3700, TDD TD 3500, n12 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac/ax | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.2 EDR | Bluetooth 5.0 | |
| Bluetooth Profiles | HFP, OPP, PAN, A2DP, AVRCP, HID | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Modem | Snapdragon X60 5G | - |
| MEDIA | ASUS Zenfone 8 | Nokia G21 |
|---|
| Sound Enhancements | Dirac HD Sound, ASUS Audio Wizard, Hi-Res audio certified, OZO Audio, Qualcomm aptX audio, Qualcomm aptX HD audio, Qualcomm aptX Adaptive | OZO spatial sound recording | |
|---|---|---|---|
| Audio Amplifier | Dual Cirrus Logic CS35L45 | - |
| FEATURES | ASUS Zenfone 8 | Nokia G21 |
|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, G-sensor, gyroscope | Accelerometer, ambient light sensor, proximity sensor | |
|---|---|---|---|
| Security Devices | Fingerprint reader (under display), face recognition | Face recognition, fingerprint reader (side) | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | MIMO technology, AudioWizard, One Hand Mode, ARCore, Triple internal microphones with ASUS Noise Reduction Technology, Multi-Magnet Stereo Speakers | Dual microphones, Fast Charging, Google Assistant Button, 3 years of Security Updates, 2 years of OS upgrades, guaranteed upgrade to Android 12 |
| OTHERS | ASUS Zenfone 8 | Nokia G21 |
|---|
| Included Accessories | SIM card removal tool, USB-C to USB-C cable, protective case, power adapter (30 W) | USB-C cable, screen protector (pre-applied), 10W charger | |
|---|---|---|---|
| Compliant Standards | IP68, IP65, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification | - | |
| Max Height of Shock Resistance | 2 m | - |
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