Google Pixel 3a vs Google Pixel 4

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Main
Model
Price
Advantages

launch
Announced
Status
platform
OS
Chipset
CPU
GPU
camera
Rear
Front
Video
Features
display
Size
Resolution
Technology
Protection
battery
General
Charging
body
Dimensions
Weight
Build
SIM card
Miscellaneous
Colors
memory
Internal Storage & RAM
Card slot
comms
WLAN
Bluetooth
GPS
NFC
Radio
USB
features
Sensors
sound
3.5mm jack
network
Technology
2G bands
3G bands
4G bands
Speed
Videos

Main
Model
Google Pixel 3a
Price
Advantages
BATTERY General: Non-removable Li-Po 3000 mAh battery
SOUND 3.5mm jack : Yes
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Main
Model
Google Pixel 4
Price
Advantages
PLATFORM GPU: Adreno 640
DISPLAY Size: 5.7 inches, 80.7 cm2
DISPLAY Resolution: 1080 x 2280 pixels, 19:9 ratio (~444 ppi density)
BODY Dimensions: 147.1 x 68.8 x 8.2 mm (5.79 x 2.71 x 0.32 in)
MEMORY Internal Storage & RAM: 64GB 6GB RAM, 128GB 6GB RAM UFS 2.1
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launch
Announced
2019, May
Status
Available. Released 2019, May
platform
OS
Android 9.0 (Pie), upgradable to Android 10.0
Chipset
Qualcomm SDM670 Snapdragon 670 (10 nm)
CPU
Octa-core (2x2.0 GHz 360 Gold & 6x1.7 GHz Kryo 360 Silver)
GPU
Adreno 615
camera
Rear
Single: 12.2 MP, f/1.8, 28mm (wide), 1/2.55", 1.4Âµm, dual pixel PDAF, OIS
Front
Single: 8 MP, f/2.0, 24mm (wide), 1/4", 1.12Âµm
Video
4K@30fps, 1080p@30/60/120fps
Features
Dual-LED flash, Pixel Shift, HDR, panorama
display
Size
5.6 inches, 79.6 cm2
Resolution
1080 x 2220 pixels, 18.5:9 ratio (~441 ppi density)
Technology
OLED capacitive touchscreen, 16M colors
Protection
Asahi Dragontrail Glass Always-on display
battery
General
Non-removable Li-Po 3000 mAh battery
Charging
Fast battery charging 18W USB Power Delivery 2.0
body
Dimensions
151.3 x 70.1 x 8.2 mm (5.96 x 2.76 x 0.32 in)
Weight
147 g (5.19 oz, 0.32 lb)
Build
Glass front (Asahi Dragontrail), plastic back, plastic frame
SIM card
Nano-SIM
Miscellaneous
Colors
Just Black, Clearly White, Purple-ish
memory
Internal Storage & RAM
64GB 4GB RAM
Card slot
No
comms
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.0, A2DP, LE, aptX HD
GPS
Yes, with A-GPS, GLONASS, GALILEO
NFC
Yes
Radio
No
USB
2.0, Type-C 1.0 reversible connector
features
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer
sound
3.5mm jack
Yes
network
Technology
GSM / CDMA / HSPA / EVDO / LTE
2G bands
GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO
4G bands
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 40(2300), 41(2500), 66(1700/2100), 71(600)
Speed
HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat11 600/75 Mbps
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launch
Announced
2019, October
Status
Available. Released 2019, October
platform
OS
Android 10.0
Chipset
Qualcomm SM8150 Snapdragon 855 (7 nm)
CPU
Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
GPU
Adreno 640
camera
Rear
—
Front
No
Video
—
Features
—
display
Size
5.7 inches, 80.7 cm2
Resolution
1080 x 2280 pixels, 19:9 ratio (~444 ppi density)
Technology
P-OLED capacitive touchscreen, 16M colors
Protection
Corning Gorilla Glass 5 DCI-P3 100% HDR Always-on display 90Hz
battery
General
Non-removable Li-Po 2800 mAh battery
Charging
Fast battery charging 18W USB Power Delivery 2.0 QI wireless charging
body
Dimensions
147.1 x 68.8 x 8.2 mm (5.79 x 2.71 x 0.32 in)
Weight
162 g (5.71 oz, 0.36 lb)
Build
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
SIM card
Nano-SIM
Miscellaneous
Colors
Clearly White, Just Black, Oh So Orange
memory
Internal Storage & RAM
64GB 6GB RAM, 128GB 6GB RAM UFS 2.1
Card slot
No
comms
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
Bluetooth
5.0, A2DP, LE, aptX HD
GPS
Yes, with A-GPS, GLONASS, BDS, GALILEO
NFC
Yes
Radio
No
USB
3.1, Type-C 1.0 reversible connector
features
Sensors
Face ID, accelerometer, gyro, proximity, compass, barometer
sound
3.5mm jack
No
network
Technology
GSM / CDMA / HSPA / EVDO / LTE
2G bands
GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO
4G bands
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100), 71(600) - Global LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500), 46(5200), 48, 66(1700/2100), 71(600) - USA
Speed
HSPA 42.2/5.76 Mbps, LTE-A (5CA) Cat18 1200/150 Mbps
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Summary

The Pixel 4 has better graphics processor Adreno 640 thanks to which the user will be able to run more number of new game apps.

The Google Pixel 4 has 4K UHD (1080 x 2280 pixels) screen resolution with 442 ppi pixel density which is better than the Google Pixel 3a 4K UHD (1080 x 2220 pixels) screen resolution with 440 ppi pixel density. It makes this phone a good choice for reading books. The Pixel 4 device is easier to use as it has more portable dimensions than the Pixel 3a: 147.1 x 68.8 x 8.2 mm versus 151.3 x 70.1 x 8.2 mm. The Pixel 3a model weight 147g which is 15g less in compare with the weight of the Google Pixel 4.

The Pixel 3a is produced with a 3.5mm jack which is the most simple way to connect earphones for listening music. The Pixel 3a has a better battery life as it is equipped with 3000mah battery which is 200mah bigger compared to the Google Pixel 4 cell. It means that this phone can be used for a longer time without charging.

Taking into account the above-mentioned differences the Pixel 4 is the best buy. Check the lowest price on Amazon.