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Apple iPhone 4s vs Samsung Galaxy M31 vs Samsung Galaxy A51

Compare phone and tablet specifications of up to three devices at once.

Comparison mode:

Display

Size:

3.5 inches
6.4 inches
6.5 inches

Resolution:

960 x 640 pixels, 326 PPI
2340 x 1080 pixels, 19.5:9 ratio, 403 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI

Technology:

IPS LCD
Super AMOLED
Super AMOLED

Refresh rate:

60Hz

Screen-to-body:

55.27 %
83.97 %
87.37 %

Colors:

16 777 216

Peak brightness:

500 cd/m2 (nit)
420 cd/m2 (nit)

Touchscreen:

Capacitive, Multi-touch

Features:

Oleophobic coating, Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Apple A5
Exynos 9611
Samsung Exynos 9611

Processor:

Dual-core, 800 MHz, ARM Cortex-A9
Octa-core, 2300 MHz, Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU:

PowerVR SGX 543MP2
Mali-G72 MP3
Mali-G72 MP3

RAM:

0.5GB DDR2
6GB LPDDR4
4GB LPDDR4

Internal storage:

64GB
64GB (UFS 2.1), available to use: 49 GB
128GB, available to use: 105.9 GB

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

iOS (9.x, 8.x, 7.x, 6.1, 6.x, 5.1, 5)
Android (11, 10), Samsung One UI
Android (11, 10), Samsung One UI

Battery

Capacity:

6000 mAh
4000 mAh

Type:

Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results:

Charging:

Fast charging
Fast charging

Max charge speed:

Wired: 15.0W

Camera

Rear:

Single camera
Quad camera
Quad camera

Main camera:

8 MP (Autofocus, BSI sensor)
64 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F2.4; Focal length: 35.00 mm; Sensor size: 1/3.2"; Pixel size: 1.4 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)
12 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Third camera:

5 MP (Macro)
5 MP (Macro)

Specifications:

Aperture size: F2.2; Focal Length: 25 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.4; Focal Length: 40 mm

Fourth camera:

5 MP (Depth information)
5 MP (Depth information)

Specifications:

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

Video recording:

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

Features:

EIS
Hyperlapse, EIS
Hyperlapse, EIS

Front:

0.3 MP VGA
32 MP (HDR, Slow-motion videos)
32 MP (HDR)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

4.54 x 2.31 x 0.37 inches (115.2 x 58.6 x 9.3 mm)
6.27 x 2.96 x 0.35 inches (159.2 x 75.1 x 8.9 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

Weight:

4.94 oz (140.0 g)
6.74 oz (191.0 g)
6.07 oz (172.0 g)

Materials:

Back: Glass; Frame: Aluminum
Back: Plastic; Frame: Plastic
Back: Plastic; Frame: Plastic

Biometrics:

2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint

Keys:

Left: Volume control, Other
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black, White
Blue, Black, Red
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

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

LTE (TDD):

Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)

UMTS:

Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)

Data Speed:

HSDPA 14.4 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes

SIM type:

Micro SIM
Nano SIM
Nano SIM

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Album art cover, Background playback
Dolby Atmos
Dolby Atmos

Screen mirroring:

TV-out
Wireless screen share
Wireless screen share

Radio:

FM
FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

4.0
5.0
5.0

Wi-Fi:

802.11 b, g, n; Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

Proprietary, USB 2.0
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0

Features:

Charging
Charging
Charging, OTG

Location:

A-GPS, Glonass
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other:

Computer sync, OTA sync
NFC
NFC, ANT+

Phone features

Notifications:

Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone

Other features:

Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval:

Date approved:

Oct 04, 2011
Feb 07, 2020
Nov 28, 2019

FCC ID value:

BCG-E2430A
A3LSMM315F
A3LSMA515FN

Measured SAR:

Head:

1.18 W/kg
0.42 W/kg
0.89 W/kg

Measured in:

1900 MHz

Body:

1.15 W/kg
0.41 W/kg
1.18 W/kg

Measured in:

850 MHz

Simultaneous Transmission:

1.54 W/kg
1.56 W/kg

Wireless Router:

0.74 W/kg
1.12 W/kg

Phablet:

2.76 W/kg

Buyers information

Price:

€ 240
$ 400

User Manual:

This is the official Samsu​ng Galaxy M31 User Guide in English provided from the manufacturer.
This is the official Samsu​ng Galaxy A51 User Guide in English provided from the manufacturer.

In The Box:

Apple Earphones with Remote and Mic, Dock Connector to USB Cable, USB Power Adapter, Documentation
15W fast charger, Data cable, Ejection pin, User Manual

Availability

Officially announced:

Oct 04, 2011
Feb 25, 2020
Dec 12, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless