In depth comparison and review of Samsung Galaxy S21 FE 5G and ASUS Zenfone 8 Flip. 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 | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | SM-G990B/DS | ZS672KS | |
Form Factor | Touch | Touch | |
Height | 155.7 mm | 165.04 mm | ASUS Zenfone 8 Flip has greater height than Samsung Galaxy S21 FE 5G. |
Width | 74.5 mm | 77.28 mm | ASUS Zenfone 8 Flip has greater width than Samsung Galaxy S21 FE 5G. |
Depth | 7.9 mm | 9.6 mm | Samsung Galaxy S21 FE 5G is narrower than Samsung Galaxy S21 FE 5G. |
Weight | 177 g | 230 g | Samsung Galaxy S21 FE 5G is lighter than Samsung Galaxy S21 FE 5G. |
Body Colour | Olive | Graphite | White | Lavender | Galactic black | |
Body Material | - | Glass | |
Protection | Dustproof, splashproof, water-resistant | - | |
Waterproof (Water-resistant) | - | - | |
IP rating | IP68 | - | |
SAR Value | 1.48 W/kg (body), 0.952 W/kg (head), 2.91 W/kg (limb) | 1.43 W/kg (head), 1.245 W/kg (body), 3.504 W/kg (limb) | |
Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
SIM Card Type (Size) | Nano SIM | Nano SIM | |
SIM Card Qty | Dual-SIM | Dual-SIM |
DISPLAY | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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Display Type | OLED display | OLED display | |
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Display Technology | Infinity-O Dynamic AMOLED 2X | AMOLED | |
Screen Size (Display Size) | 6.4" | 6.67" | ASUS Zenfone 8 Flip has larger screen size than Samsung Galaxy S21 FE 5G. |
Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2400 x 1080 pixels | ASUS Zenfone 8 Flip has better screen resolution than Samsung Galaxy S21 FE 5G. |
Display Format | Full HD+ | Full HD+ | |
Pixel Density | 401 ppi | - | |
Aspect Ratio | - | 20:9 | |
Max Brightness | - | 1000 cd/m² | |
Colour Depth | 16.7 million colours | - | |
HDR | - | Yes | ASUS Zenfone 8 Flip has HDR. |
HDR Technology | HDR10+ | HDR10+ | |
Display Enhancement Technology | Eye Comfort Shield | DC Dimming | |
Display Refresh Rate | 120 Hz | 90 Hz | Samsung Galaxy S21 FE 5G has better refresh rate than ASUS Zenfone 8 Flip. |
Display Features | AOD(Always On Display), Infinity O display, Video Wallpaper | ASUS Glove Touch technology, Delta-E < 1, NanoEdge display, 105% NTSC, 110% DCI-P3 | |
Display Protection (Screen Protector) | Corning Gorilla Glass Victus (scratch resistant glass) | Corning Gorilla Glass 6 (scratch resistant glass) |
PROCESSOR | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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Processor Type (CPU) | - | Qualcomm Snapdragon 888 5G | |
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Processor Number | - | SM8350 | |
Clock Speed | 2.84 GHz | 2.84 GHz | Both phones have the same clock speed. |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
Graphics System (GPU) | - | Qualcomm ADRENO 660 |
MEMORY | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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RAM | 6 GB | LPDDR5 SDRAM - 8 GB | ASUS Zenfone 8 Flip has more RAM than Samsung Galaxy S21 FE 5G. |
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Internal Memory Size (Storage Capacity) | 128 GB | 256 GB | ASUS Zenfone 8 Flip has more internal memory than Samsung Galaxy S21 FE 5G. |
User Memory | 101.1 GB | - | |
Memory Interface | - | UFS 3.1 | |
Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 2 TB |
CAMERA | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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MAIN CAMERA |
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Number of Main Cameras | 3 | 3 | |
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Rear Camera Design | - | Flip | |
Sensor Resolution | 12 Megapixel | 64 Megapixel | ASUS Zenfone 8 Flip has better camera resolution than Samsung Galaxy S21 FE 5G. |
Sensor Size | 1/1.76" | 1/1.7" | Samsung Galaxy S21 FE 5G has better camera sensor size than ASUS Zenfone 8 Flip. |
Sensor Name | - | Sony Exmor RS IMX686 sensor | |
Lens Type | Wide-angle lens | Wide-angle lens | |
Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
Field of View (FoV) | 79 degree(s) | 78.3 degree(s) | Samsung Galaxy S21 FE 5G has larger lens field of view than ASUS Zenfone 8 Flip. |
Pixel Size | 1.8 μm | 0.8 μm | Samsung Galaxy S21 FE 5G has larger camera pixel size than ASUS Zenfone 8 Flip. |
Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
Focus Adjustment | Automatic | - | |
Minimum Focal Length (Focal Distance) | - | 26.6 mm | |
Optical Zoom | 3x | - | |
Digital Zoom | 30x | - | |
Special Effects | Face retouch, Grid Line | - | |
HDR Mode | Auto HDR mode | - | |
Camera Modes | Night mode, portrait mode | Slow motion video, Time-lapse mode, Pro mode, Auto Panorama | |
Light Source | LED flash | LED flash | |
Video Resolutions | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1280 x 720 (720p) at 960 fps | 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 30fps, Slo-mo video 3840 x 2160 (4K) at 120 fps | |
Camera Features (Functions) | Dual recording | Phase Detect Auto-Focus (PDAF), 3-axis electronic image stabilisation, Wind Noise Filter, Motion tracking, Quad Bayer technology, HyperSteady, Free Zoom, Mic Focus, 2x1 On-Chip Lens (OCL), Quick Flip Angle camera |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | 12 Megapixel | 12 Megapixel | Both phones have the same second camera resolution. |
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Sensor Size (2nd Camera) | - | 1/2.55" | |
Sensor Name (2nd Camera) | - | Sony Exmor RS IMX363 sensor | |
Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
Field of View (2nd Camera) | 123 degree(s) | - | |
Pixel Size (2nd Camera) | 1.12 μm | 1.4 μm | ASUS Zenfone 8 Flip has larger second camera pixel size than Samsung Galaxy S21 FE 5G. |
Minimum Focal Length (2nd Camera) | - | 14.3 mm | |
Camera Features (2nd Camera) | - | Dual Pixel Phase Detect Auto-Focus (PDAF), Real-time distortion correction, Dual Pixel image sensor, 4cm macro photography |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | 8 Megapixel | 8 Megapixel | Both phones have the same third camera resolution. |
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Sensor Size (3rd Camera) | - | 1/2.55" | |
Lens Type (3rd Camera) | Telephoto lens | Telephoto lens | |
Lens Aperture (3rd Camera) | F/2.4 | - | |
Field of View (3rd Camera) | 32 degree(s) | - | |
Pixel Size (3rd Camera) | 1 μm | 1.4 μm | ASUS Zenfone 8 Flip has larger third camera pixel size than Samsung Galaxy S21 FE 5G. |
Optical Zoom | - | 3x | |
Digital Zoom | - | 12x | |
Camera Features (3rd Camera) | Space Zoom x30 | Dual Pixel image sensor |
FRONT CAMERA |
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Number of Front Cameras | 1 | 0 | |
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Sensor Resolution (Front) | 32 Megapixel | - | |
Lens Aperture (Front) | F/2.2 | - | |
Field of View (Front) | 81 degree(s) | - | |
Pixel Size (Front) | 0.8 μm | - | |
Focus Adjustment | Focus free | - |
BATTERY AND CHARGING | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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Battery Capacity (Battery Size) | 4500 mAh | 5000 mAh | ASUS Zenfone 8 Flip has larger battery capacity than Samsung Galaxy S21 FE 5G. |
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Fast Charging Technology | Samsung Fast Charging | Qualcomm Quick Charge 4.0, Power Delivery 3.0 | Both phones have fast charging technology. |
Recharge Time (Charging Time) | - | 1.7 hours | |
Wireless Charging | Yes | - | Samsung Galaxy S21 FE 5G can be charged wirelessly. |
Wireless Charging Standards | Wireless PowerShare | - | |
Talk Time | 2220 minutes | - | |
Run Time Details | Talk (LTE): up to 2220 min Active online usage (LTE): up to 13 hrs Active online usage (Wi-Fi): up to 13 hrs Playback (video): up to 16 hrs Playback (audio): up to 79 hrs |
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Battery Technology | - | Lithium polymer |
CELLULAR | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
Operating System | Android 12 | Android 11 | |
User Interface | - | ASUS ZenUI 8.0 | |
Intelligent Assistant | Bixby | - | |
Payment Technology | Samsung Pay | - | |
Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC |
COMMUNICATIONS | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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Data Transmission | FDD-LTE, TDD-LTE, 5G NR FR1 | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+, 5G NR FR1 | |
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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 2, Band 4, Band 5, Band 8 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 6, Band 8, Band 19 | |
3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1800, 1700, 850, 800, 900, 800 | |
4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 26, Band 28, Band 32, Band 38, Band 40, Band 41, Band 66 | 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 | |
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 DD, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | 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 | |
5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n78, n40 | N1, n2, n3, n5, n7, n8, n20, n28, n38, n77, n78, n12 | |
5G NR Frequency | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3500, TDD 2300 | 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 | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
Bluetooth | Bluetooth 5.0 | Bluetooth 5.2 EDR | |
Bluetooth Profiles | - | A2DP | |
NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
Modem | - | Snapdragon X60 5G |
MEDIA | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID | Apt-X, apt-X HD | |
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Supported Digital Video Standards | MKV, FLV, AVI, 3GP, M4V, WebM, 3G2, MP4 | - | |
Sound Enhancements | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound | Dirac HD Sound, Hi-Res audio certified, OZO Audio, Qualcomm aptX Adaptive | |
Audio Amplifier | - | Dual NXP TFA9874 |
FEATURES | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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Sensors | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor, hall sensor, gyroscope | |
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Security Devices | Fingerprint reader | Fingerprint reader (under display), face recognition | |
Additional Phone Features | MIMO technology, Fast Charging, Samsung KNOX, Samsung DeX support, Samsung Smart Switch, Game mode | MIMO technology, Power Saving Mode, AudioWizard, Smart Key, One Hand Mode, ASUS Noise Reduction technology, ARCore, dual stereo speakers, triple noise reduction microphones, system mode |
OTHERS | Samsung Galaxy S21 FE 5G | ASUS Zenfone 8 Flip |
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Included Accessories | SIM card removal tool, USB-C cable | SIM card removal tool, USB-C to USB-C cable, protective case, power adapter (30 W) | |
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Compliant Standards | IP68 | - | |
Max Depth of Water Resistance | 1.5 m | - |