Google Pixel 3a vs Samsung Galaxy S21 Ultra - specs comparison

Display

Size:

5.6 inches

6.8 inches

Resolution:

2220 x 1080 pixels, 18.5:9 ratio, 444 PPI

3200 x 1440 pixels, 20:9 ratio, 516 PPI

Technology:

OLED

Dynamic AMOLED

Screen-to-body:

73.93 %

89.33 %

Peak brightness:

1600 cd/m2 (nit)

Features:

Scratch-resistant glass (Dragontrail), Ambient light sensor, Proximity sensor

120Hz refresh rate (adaptable), HDR video support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 670 SDM670

Qualcomm Snapdragon 888

Processor:

Octa-core, 2000 MHz, Kryo 360, 64-bit, 10 nm

Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Adreno 615

Adreno 660

RAM:

4GB LPDDR4

12GB LPDDR5

Internal storage:

64GB (eMMC), not expandable

128GB (UFS 3.1), not expandable

Device type:

Smartphone

OS:

Android (11, 10, 9.0 Pie)

Android (11), Samsung One UI

Battery

Capacity:

3000 mAh

5000 mAh

Type:

Not user replaceable

Li - Polymer, Not user replaceable

Battery life test results:

link

Charging:

USB Power Delivery

Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Single camera

Quad camera

Main camera:

12.2 MP (OIS, PDAF)

108 MP (OIS, Laser and PDAF)

Specifications:

F1.8; 28 mm; 1/2.55"; 1.4 μm

F1.8; 26 mm; 1/1.33"; 0.8 μm

Second camera:

10 MP (Telephoto, OIS, PDAF)

Specifications:

Optical zoom: 3x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Third camera:

12 MP (Ultra-wide, PDAF)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Fourth camera:

10 MP (Periscope, OIS, PDAF)

Specifications:

Optical zoom: 10x; Aperture size: F4.9; Focal Length: 240 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

EIS

HDR, Hyperlapse, EIS

Front:

8 MP

40 MP (PDAF, HDR)

Video capture:

1920x1080 (Full HD)

3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

5.96 x 2.76 x 0.32 inches (151.3 x 70.1 x 8.2 mm)

6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)

Weight:

5.19 oz (147.0 g)

8.04 oz (229.0 g)

Materials:

Back: Plastic

Back: Glass (Corning Gorilla Glass Victus); Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

Fingerprint (touch)

2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Black, Purple, White

Phantom black, Silver

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)