Samsung Galaxy A51 vs realme 7 vs Google Pixel 4a - specs comparison

Display

Size:

6.5 inches

5.8 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 405 PPI

2340 x 1080 pixels, 19.5:9 ratio, 444 PPI

Technology:

Super AMOLED

IPS LCD

OLED

Screen-to-body:

87.37 %

83.31 %

82.53 %

Features:

60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

90Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass), Ambient light sensor, Proximity sensor

60Hz refresh rate, HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 9611

MediaTek Helio G95

Qualcomm Snapdragon 730 SM7150-AA

Processor:

Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

Octa-core, 2050 MHz, Arm Cortex-A76 and Arm Cortex-A55, 64-bit, 12 nm

Octa-core, 2200 MHz, Kryo 470, 64-bit, 8 nm

GPU:

Mali-G72 MP3

Mali G76 MC4

Adreno 618

RAM:

4GB LPDDR4

6GB LPDDR4

Internal storage:

128GB, available to use: 105.9 GB

64GB (UFS 2.1)

128GB, not expandable

Storage expansion:

microSDXC up to 512 GB

microSDXC

Device type:

Smartphone

OS:

Android (11, 10), Samsung One UI

Android (10)

Android (11, 10)

Battery

Capacity:

4000 mAh

5000 mAh

3140 mAh

Type:

Li - Polymer, Not user replaceable

Battery life test results:

link

Charging:

Fast charging

USB Power Delivery

Max charge speed:

Wired: 30.0W

Wired: 18.0W

Camera

Rear:

Quad camera

Single camera

Main camera:

48 MP (PDAF)

12.2 MP (OIS, PDAF)

Specifications:

F2.0; 26 mm; 1/2"; 0.8 μm

F1.8; 26 mm; 1/2"; 0.8 μm

F1.7; 27 mm; 1/2.55"; 1.4 μm

Second camera:

12 MP (Ultra-wide)

8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Aperture size: F2.3; Focal Length: 16 mm; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera:

5 MP (Macro)

2 MP (Macro)

Specifications:

Aperture size: F2.4; Focal Length: 40 mm

Aperture size: F2.4

Fourth camera:

5 MP (Depth information)

2 MP (Black and White)

Specifications:

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Aperture size: F2.4

Video recording:

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

Features:

Hyperlapse, EIS

EIS

Front:

32 MP (HDR)

16 MP (Slow-motion videos)

8 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

6.39 x 2.97 x 0.37 inches (162.3 x 75.4 x 9.4 mm)

5.67 x 2.73 x 0.32 inches (144 x 69.4 x 8.2 mm)

Weight:

6.07 oz (172.0 g)

6.93 oz (196.5 g)

5.04 oz (143.0 g)

Materials:

Back: Plastic; Frame: Plastic

Biometrics:

2D Face unlock, In-screen fingerprint

Fingerprint (touch)

Keys:

Right: Volume control, Lock/Unlock key

Left: Volume control; Right: Lock/Unlock key

Right: Volume control, Lock/Unlock key

Colors:

Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Mist blue, Mist white

Just black

Cellular

LTE (FDD):

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), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

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), 17(700 b), 18(800 Lower), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)