Realme 6i vs. ASUS Zenfone 8

Phone Comparison, Reviews and Tests

In depth comparison and review of Realme 6i and ASUS Zenfone 8. 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

Realme 6i vs. ASUS Zenfone 8 Comparison Chart
DESIGN AND DIMENSIONS Realme 6i ASUS Zenfone 8
Product Type Smartphone Smartphone
Manufacturer Model Number - ZS590KS
Form Factor Touch Touch
Height 164.4 mm 148 mm Realme 6i has greater height than ASUS Zenfone 8.
Width 75.4 mm 68.5 mm Realme 6i has greater width than ASUS Zenfone 8.
Depth 9 mm 8.9 mm ASUS Zenfone 8 is narrower than Realme 6i.
Weight 199 g 169 g ASUS Zenfone 8 is lighter than Realme 6i.
Body Colour Milk white Obsidian black
Protection - Drop-proof, water-resistant, dust-resistant
Waterproof (Water-resistant) - Yes ASUS Zenfone 8 is waterproof.
IP rating - IP68, IP65
SAR Value 0.59 W/kg (body), 1.14 W/kg (head) 1.582 W/kg (body), 1.412 W/kg (head), 3.498 W/kg (limb)
Integrated Components - FM radio
Connector Type USB Type-C - 24 pin USB-C USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) - Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Realme 6i ASUS Zenfone 8
Display Type - OLED display
Display Technology - AMOLED
Screen Size (Display Size) 6.5" 5.9" Realme 6i has larger screen size than ASUS Zenfone 8.
Screen Resolution (Display Resolution) 1600 x 720 pixels 2400 x 1080 pixels ASUS Zenfone 8 has better screen resolution than Realme 6i.
Display Format HD+ Full HD+
Aspect Ratio 20:9 20:9
Max Brightness - 1100 cd/m²
HDR - Yes ASUS Zenfone 8 has HDR.
HDR Technology - HDR10+
Display Enhancement Technology - DC Dimming
Display Refresh Rate - 120 Hz
Touch Sampling Rate - 240 Hz
Display Features Eye Care, Mini-drop display Always-on display, Glove Touch, Delta-E < 1, 107% NTSC, 151.9% sRGB, 112% DCI-P3
Display Protection (Screen Protector) Corning Gorilla Glass 3 (scratch resistant glass) Corning Gorilla Glass Victus (scratch resistant glass)
PROCESSOR Realme 6i ASUS Zenfone 8
Processor Type (CPU) MediaTek Helio G80 Qualcomm Snapdragon 888 5G
Clock Speed 2 GHz 2.842 GHz ASUS Zenfone 8 has higher clock speed than Realme 6i.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
Graphics System (GPU) Mali-G52 Qualcomm ADRENO 660
MEMORY Realme 6i ASUS Zenfone 8
RAM LPDDR4X SDRAM - 4 GB LPDDR5 SDRAM - 8 GB ASUS Zenfone 8 has more RAM than Realme 6i.
Internal Memory Size (Storage Capacity) 128 GB 128 GB Both phones have the same internal memory capacity.
Memory Interface - UFS 3.1
Supported Flash Memory Cards (Expandable Memory) microSD -
CAMERA Realme 6i ASUS Zenfone 8
MAIN CAMERA
Number of Main Cameras 4 2
Sensor Resolution 48 Megapixel 64 Megapixel ASUS Zenfone 8 has better camera resolution than Realme 6i.
Sensor Size - 1/1.7"
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.
Field of View (FoV) - 78.3 degree(s)
Pixel Size - 1.6 μm
Optical Image Stabiliser (OIS) - Optical Image Stabiliser (OIS) ASUS Zenfone 8 has optical stabilisation.
Focus Adjustment Automatic -
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, 1280 x 720 (720p) at 30 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 24 fps, Slo-mo video 3840 x 2160 (4K) at 120 fps
Camera Features (Functions) AI Quad camera 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)
SECOND CAMERA
Sensor Resolution (2nd Camera) 8 Megapixel 12 Megapixel ASUS Zenfone 8 has better second camera resolution than Realme 6i.
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/2.3 F/2.2 ASUS Zenfone 8 has better second camera lens aperture than Realme 6i.
Field of View (2nd Camera) 119 degree(s) -
Pixel Size (2nd Camera) - 1.4 μm
Focal Length Equivalent to 35mm Camera - 14.3
Camera Features (2nd Camera) - Real-time distortion correction, 4cm macro photography, Dual Phase Detect Auto-Focus (PDAF)
THIRD CAMERA
Lens Aperture (3rd Camera) F/2.4 -
Camera Functions (3rd Camera) Potrait camera -
Camera Features (3rd Camera) B&W Portrait lens -
FOURTH CAMERA
Sensor Resolution (4th Camera) 2 Megapixel -
Lens Aperture (4th Camera) F/2.4 -
Camera Functions (4th Camera) Macro camera -
Camera Features (4th Camera) 4cm macro photography -
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 16 Megapixel 12 Megapixel Realme 6i has better front camera resolution than ASUS Zenfone 8.
Sensor Name (Front) - Sony Exmor RS IMX663 sensor
Lens Aperture (Front) F/2.0 F/2.4 Realme 6i has better front lens aperture than Realme 6i.
Pixel Size (Front) - 1.22 μm
Focus Adjustment - Automatic
Camera Modes (Front) AI Beauty Portrait
Face Recognition (Face ID) Face recognition - Realme 6i has face detection.
Camera Features (Front) - Dual Pixel technology, EIS video stabilisation, Dual Phase Detect Auto-Focus (PDAF)
BATTERY AND CHARGING Realme 6i ASUS Zenfone 8
Battery Capacity (Battery Size) 5000 mAh 4000 mAh Realme 6i 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.
Standby Time 936 hours -
Talk Time 1758 minutes -
Run Time Details Standby: up to 936 hrs
Talk: up to 1758 min
Playback (Music): up to 54.7 hrs
Continuous viewing (YouTube): up to 20.6 hrs
Continuous viewing (Instagram): up to 19.7 hrs
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CELLULAR Realme 6i ASUS Zenfone 8
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G ASUS Zenfone 8 has more advanced generation mobile network.
Operating System Android 10 Android 11
User Interface Realme UI ASUS ZenUI 8.0
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC
COMMUNICATIONS Realme 6i ASUS Zenfone 8
Data Transmission FDD-LTE, TDD-LTE GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+, Gigabit LTE, 5G NR FR1
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 20, Band 28, Band 38, Band 40, Band 41 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 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 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, 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 802.11b/g/n IEEE 802.11a/b/g/n/ac/ax
Bluetooth Bluetooth 5.0 Bluetooth 5.2 EDR
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 Realme 6i ASUS Zenfone 8
Sound Enhancements - Dirac HD Sound, ASUS Audio Wizard, Hi-Res audio certified, OZO Audio, Qualcomm aptX audio, Qualcomm aptX HD audio, Qualcomm aptX Adaptive
Audio Amplifier - Dual Cirrus Logic CS35L45
FEATURES Realme 6i ASUS Zenfone 8
Sensors Accelerometer, ambient light sensor, proximity sensor, magnetometer, gyro sensor Accelerometer, ambient light sensor, proximity sensor, digital compass, G-sensor, gyroscope
Security Devices - Fingerprint reader (under display), face recognition
Additional Phone Features - MIMO technology, AudioWizard, One Hand Mode, ARCore, Triple internal microphones with ASUS Noise Reduction Technology, Multi-Magnet Stereo Speakers
OTHERS Realme 6i ASUS Zenfone 8
Included Accessories SIM card removal tool, USB-C cable, protective case, 18W charger, protective film SIM card removal tool, USB-C to USB-C cable, protective case, power adapter (30 W)
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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