Phone Comparison - Google Pixel 4a vs Google Pixel 5 vs Samsung Galaxy S21 Ultra 5G

general General Info

Manufacturer Google Google Samsung
Announced 2020, August 03 Exp. announcement 2020, September 2021, January 14
Status Coming soon. Exp. release 2020, August 20 Rumored. Exp. release 2020, October Coming soon. Exp. release 2021, January 29
Price - - Rs. 105,999 ($0.00) [Similarly Priced]
Colors Just Black Just Black Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown
Form Factor Candybar Candybar Candybar
Dimension 144 x 69.4 x 8.2 mm
(5.67 x 2.73 x 0.32 in)
8 mm thickness
(0.31 in thickness)
165.1 x 75.6 x 8.9 mm
(6.5 x 2.98 x 0.35 in)
Weight 143 g (5.04 oz) 151 g (5.33 oz) 227 g (8.01 oz)
SIM Type Dual SIM (Nano-SIM, dual stand-by) Nano-SIM and/or eSIM Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
CDMA2000 1xEV-DO
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100) LTE LTE
5G Network - SA/NSA SA/NSA/Sub6/mmWave
Messaging
Build Features - Fingerprint Sensor
- Fingerprint Sensor
- Fingerprint Sensor (under display, ultrasonic)
Samsung Pay (Visa, MasterCard certified)
IP68 dust/water resistant (up to 1.5m for 30 mins)
Stylus support
Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+

hardware Hardware and OS

OS Android 10.0 Android 11 Android 11
Processor Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver), Qualcomm SDM730 Snapdragon 730 (8 nm) Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver), Qualcomm SDM765 Snapdragon 765G (7 nm) Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International / Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China/Korea, Exynos 2100 - Global / Qualcomm Snapdragon 875 - USA
GPU Adreno 618 Adreno 620 Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea
RAM 6GB 8 GB 16 GB
Internal Memory 128 GB 128 GB 512 GB
External Memory No No microSDXC (uses shared SIM slot)

display Display

Type IPS LCD Capacitive Touchscreen AMOLED Capacitive Touchscreen
Corning Gorilla Glass 3
Always-on display
HDR10+
90Hz refresh rate
QHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1500 nits (peak)
Corning Gorilla Glass Victus
Always-on display
Colors 16M colors 16M colors 16M Colour
Size 5.81 inches 6.0 inches 6.8 inches
Resolution 1080 x 2340 pixels (444 ppi) 1080 x 2340 pixels (430 ppi) 1440 x 3200 pixels (516 ppi)
Screen-to-Body Ratio 82.76% - 89.46%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes no no
Radio - Unspecified FM radio (Snapdragon model only; market/operator dependent)
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes

camera Camera

Rear Camera 12.2 MP 12.2 MP + 16 MP 108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP
Flash LED Flash LED Flash LED flash
Features 12.2 MP, f/1.7, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS
Auto-HDR, Panorama
12.2 MP, f/1.7, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS
16 MP, f/2.2, 107˚ (ultrawide), 1.0µm
Auto-HDR, Panorama
108 MP (2nd gen), f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS
10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom
10 MP, f/2.4, 70mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom
12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
auto-HDR, panorama
Video 2160p@30fps, 1080p@30fps; gyro-EIS 4K@30fps, 1080p@30/60/120fps; gyro-EIS 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
Front Camera 8 MP, f/2.0, (wide), 1/4", 1.12µm
HDR
1080p@30fps [Similar]
8 MP, f/2.0, 24mm (wide), 1/4", 1.12µm
Auto-HDR
1080p@30fps [Similar]
40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF
Dual video call, Auto-HDR
4K@30/60fps, 1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE-A HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G
Bluetooth 5.1, A2DP, LE 5.0, A2DP, LE, aptX HD 5.2, A2DP, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot
USB 3.1, Type-C 1.0 reversible connector 3.1, Type-C 1.0 reversible connector USB Type-C 3.2, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, BDS, GALILEO Yes, with A-GPS, GLONASS, GALILEO, QZSS Yes, with A-GPS, GLONASS, BDS, GALILEO
Browser Yes Yes Yes

memory User Memory

Internal 128 GB, 6GB RAM (UFS 2.1) 128 GB, 8 GB RAM UFS 2.1 512 GB, 16 GB RAM or 256 GB, 12 GB RAM or 128 GB, 12 GB RAM UFS 3.1
Expandable Storage No No microSDXC (uses shared SIM slot)
USB OTG Supported Supported Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor present magnetic field sensor present
Gyroscope Sensor gyroscope sensor not present gyroscope sensor present gyroscope sensor present
Barometer Sensor barometer sensor not present barometer sensor present barometer sensor present
NFC NFC not supported NFC supported NFC supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 18W
Non-removable Li-Po Battery
Fast battery charging 18W
Reverse charging
Wireless charging
USB Power Delivery 2.0
Non-removable Li-Po Battery
Fast battery charging 25W
USB Power Delivery 3.0
Fast Qi/PMA wireless charging 15W
Reverse wireless charging 4.5W
Capacity 3140 mAh 4080 mAh 5000 mAh
Stand by - - -
Talk Time - - -