Google Pixel 4a (5G) vs Samsung Galaxy A21s

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Pixel 4a (5G) compared with Galaxy A21s
GooglePixel 4a (5G)SamsungGalaxy A21s
Overview
ReleasedOctober 2020May 2020
Display
Screen size6.2″6.5″
Resolution2340 × 1080 (better)1600 × 720
Sharpness416 pixels per inch (better)270 pixels per inch
PanelOLEDLCD
Refresh rate60 Hz–
Display typeFull-screen OLED with hole-punch camera; 19.5:9 aspect ratioHD+ TFT Infinity-O display, 20:9 aspect ratio
Pixel density413 ppi–
Always-on displayAlways-on display; Now Playing–
Screen protectionCorning Gorilla Glass 3–
Display featuresHDR support; greater than 100,000:1 contrast ratio; 24-bit colour; 60 Hz refresh identified by Notebookcheck and TechRadar–
Performance
ChipQualcomm Snapdragon 765GExynos 850
Memory6 GB3 GB – 6 GB
Storage128 GB (better)32 GB, 64 GB
CPU64-bit octa-core CPU; maker lists 2.4 GHz + 2.2 GHz; Titan M security module–
GPUAdreno 620–
Storage type6 GB LPDDR4x RAM; UFS 2.1 storage identified by Notebookcheck; no microSD slot32 GB in the UK; dedicated microSD slot up to 512 GB
Cameras
Main camera12.2 MP48 MP (better)
Ultra wide camera16 MP8 MP
Telephoto cameraNoneNone
Optical zoomNoneNone
Front camera8 MP13 MP (better)
Main cameraDual-pixel phase-detection autofocus; f/1.7; 1.4 μm pixels; 77° field of view; optical and electronic image stabilisation48 MP, F2.0
Ultra wide cameraf/2.2; 1.0 μm pixels; 118.7° maximum field of view with RAW capture enabled8 MP, F2.2, 123-degree field of view
Front cameraf/2.0; 1.12 μm pixels; fixed focus; 83° field of view13 MP, F2.2
Video recordingRear 4K at 30/60 fps; 1080p at 30/60/120/240 fps–
Front video1080p at 30 fps–
Camera featuresNight Sight in Portrait Mode; astrophotography; Portrait Light; Cinematic Pan; Super Res Zoom2 MP F2.4 macro and 2 MP F2.4 depth cameras; 1080p video at 30 fps
Battery and charging
Battery3,885 mAh5,000 mAh (better)
Wired chargingUp to 18 W (better)Up to 15 W
Wireless chargingNoneNone
Battery life detailTypical 3,885 mAh, minimum 3,800 mAh; maker claims all-day use or up to 48 hours with Extreme Battery Saver–
Wired chargingUSB-PD 2.0; supplied 18 W USB-C adaptor; actual charging rates may be slower–
Design
TypeStandardStandard
Weight168 g (better)192 g
Thickness8.2 mm (better)8.9 mm
Height × width153.9 × 74 mm163.6 × 75.3 mm
MaterialsSoft-touch polycarbonate unibodyGlossy plastic body
ColoursJust Black; Clearly White also listed in Google's historical hardware sheet, with availability varying by marketBlack, white and blue in the UK
ButtonsPower button and volume controls–
BiometricsPixel Imprint rear fingerprint sensorRear fingerprint reader and face recognition
SensorsProximity and ambient light; accelerometer; gyrometer; magnetometer; barometer; spectral and flicker sensor–
SpeakersStereo speakers–
MicrophonesTwo microphones with noise suppression–
Software
Operating systemAndroidAndroid
Software at launchAndroid 11Android 10 with One UI Core
Software updatesNo longer receives Android version or security updates according to Google's current support policy; original promise was at least three years–
AI featuresRecorder with on-device English transcription, search and audio editing; Google Assistant–
Safety featuresCar crash detection and Safety Check; language, country and network restrictions apply–
In the boxUK package includes 18 W USB-C power adaptor, USB-C to USB-C cable (1 m, USB 2.0), Quick Switch adaptor, SIM tool and quick start guide; earbuds included only in certain other regions–
Connectivity
Mobile networkUK G025I supports sub-6 GHz 5G and LTE; US Verizon G6QU3 adds mmWave, weighs 171 g and is 8.5 mm thick; first sold in Japan on 15 October 2020, with other markets following in November–
SIMOne nano-SIM and eSIM; operator dependentDual nano-SIM plus dedicated microSD slot on SM-A217F
Wi-FiDual-band 2.4/5 GHz 802.11a/b/g/n/ac; 2x2 MIMOWi-Fi 802.11a/b/g/n/ac at 2.4 and 5 GHz
BluetoothBluetooth 5.0 + LE; A2DP; aptX, aptX HD, LDAC and AACBluetooth 5.0
NFCNFC; Google Cast; FeliCa on Japanese G025H–
USBUSB-C 3.1 Gen 1; 3.5 mm headphone jack; supplied cable runs at USB 2.0USB Type-C 2.0; 3.5 mm headphone socket
PositioningGPS, GLONASS, Galileo, QZSS and BeiDou outside the USGPS, GLONASS, BeiDou and Galileo

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