Asus Zenfone 9 vs Samsung Galaxy S21 Ultra

ProcessorQualcomm Snapdragon 8+ Gen 1Samsung Exynos 2100
Display5.9", Full HD+ AMOLED, 120 Hz6.8 inches", Dynamic AMOLED 2X, 120 Hz
Camera50MP+12MP/12MP108MP+10MP+10MP+12MP/MP
Battery4300 mAh5000 mAh mAh
RAM8/16 GB12/16 GB
Storage128/256 GB128/256/512 GB
ColorsStarry Blue, Moonlight White, Sunset Red, Midnight BlackPhantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
LaunchSeptember 15, 2022January 14, 2021
AvailabilityJuly 28, 2022January 29, 2021
Origin CountryTaiwanSouth Korea
Launch Price₹64,000₹1,05,999
TypeFull HD+ AMOLEDDynamic AMOLED 2X
Refresh Rate120 Hz120 Hz
FeaturesHDR10+HDR10+
Size5.9 inches6.8 inches inches
Resolution Width1080 pixels1440 pixels
Resolution Height2400 pixels3200 pixels
Resolution Ratio20:920:9
Pixel Per Inch445 ppi515 ppi
Display ResolutionFHD+FHD+
Peak Brightness1100 nits1500 nits
Weight169 grams227 grams grams
FrontGorilla Glass VictusGorilla Glass Victus
BackPlasticGlass
SideAluminium FrameAluminium Frame
PortUSB Type-C 2.0USB Type-C 3.2
IP ratingIP68 (dust and water resistant)IP68 (dust and water resistant)
SpeakerStereo SpeakersStereo Speakers
Build QualityCorning Gorilla Glass Victus
Chipset BrandQualcommSamsung
Chipset NameSnapdragon 8+ Gen 1Exynos 2100
CPUOcta-coreOcta-core
GPUAdreno 730 Mali-G78 MP14
Software NameAndroidAndroid
Software SkinZen UIOne UI 6.1
OS Updates(Years)24
Camera Resolution50 MP108 MP
Camera TypeWide-angle Wide-angle
Camera 2 Resolution12 MP10 MP
Camera 2 TypeUltra-wideTelephoto
FeaturesHDR, Panorama, Laser Auto Focus, LED FlashLED Flash, Auto-HDR, Panorama, Digital Zoom
StabilizationGimbal StabilizationOIS
Video8K@24fps, 4K@30/60/120fps, 1080p@30/60/240fps; gyro-EIS, HDR8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, Stereo sound rec., gyro-EIS
Camera 3 Resolution10 MP
Camera 3 TypePeriscope
Front Camera Resolution12 MP
Front Camera TypeSingleWide
FeaturesFace Unlock, HDR, Dual-pixel PDAFDual Video Call, Auto-HDR, Face Unlock
Video4K@30fps, 1080p@30/60fps, gyro-EIS4K@30/60fps, 1080p@30fps
Capacity4300 mAh5000 mAh mAh
Battery TypeLithium PolymerLithium Ion
Charging Speed30 w25 w
Wireless ChargingNoYes
Storage128 GB128 GB
Storage typeUFS 3.1UFS 3.1
RAM8 GB12 GB
RAM typeLPDDR5LPDDR5
Sim SlotDual SIM (nano-SIM, dual stand-by)nano-SIM and eSIM or Dual SIM (2 nano-SIM and eSIM, dual stand-by)
NetworkGSM, HSPA, LTE, 5GGSM, CDMA, HSPA, EVDO, LTE, 5G
WLANWi-Fi 802.11 a/b/g/n/ac/6eWi-Fi 802.11 a/b/g/n/ac/6e
Bluetooth5.25.2
PositioningGPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)GPS, GLONASS, BDS, GALILEO
NFCYesYes
RadioNoFM Radio
Fingerprint ScannerSide MountedOptical (under display)
SensorsAccelerometer, Proximity, Compass, Gyroscope, Ambient Light Sensor, Hall Sensor, X-axis Linear MotorAccelerometer, Proximity, Compass, Barometer, Gyroscope, Samsung DeX, Samsung Wireless DeX (desktop experience support), Ultra Wideband (UWB) Support
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