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Apple iPhone 4s vs Samsung Galaxy M31 vs Samsung Galaxy M51

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

Comparison mode:

Display

Size:

3.5 inches
6.4 inches
6.7 inches

Resolution:

960 x 640 pixels, 326 PPI
2340 x 1080 pixels, 19.5:9 ratio, 403 PPI
2340 x 1080 pixels, 20:9 ratio, 385 PPI

Technology:

IPS LCD
Super AMOLED
Super AMOLED Plus

Screen-to-body:

55.27 %
83.97 %
88.27 %

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
Qualcomm Snapdragon 730 SM7150-AA

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

GPU:

PowerVR SGX 543MP2
Mali-G72 MP3
Adreno 618

RAM:

0.5GB DDR2
6GB LPDDR4
6GB LPDDR4

Internal storage:

64GB
64GB (UFS 2.1), available to use: 49 GB
128GB, available to use: 106 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 (10), Samsung One UI

Battery

Capacity:

6000 mAh
7000 mAh

Type:

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

Charging:

Fast charging
Fast charging, Reverse charging

Max charge speed:

Wired: 15.0W
Wired: 25.0W

Camera

Rear:

Single camera
Quad camera
Quad camera

Main camera:

8 MP (Autofocus, BSI sensor)
64 MP (PDAF)
64 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: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; 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

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

Fourth camera:

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

Specifications:

Aperture size: F2.2
Aperture size: F2.4

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)

Features:

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)
6.45 x 3.00 x 0.37 inches (163.9 x 76.3 x 9.5 mm)

Weight:

4.94 oz (140.0 g)
6.74 oz (191.0 g)
7.51 oz (213.0 g)

Materials:

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

Biometrics:

2D Face unlock, Fingerprint (touch)
Fingerprint (touch)

Keys:

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

Colors:

Black, White
Blue, Black, Red
Black, White

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), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)

LTE (TDD):

Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 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, UMTS

Dual SIM:

Yes
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

Screen mirroring:

TV-out
Wireless screen share
Wireless screen share

Radio:

FM
FM, Stereo, RDS

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

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

Other:

Computer sync, OTA sync
NFC
NFC

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

FCC ID value:

BCG-E2430A
A3LSMM315F

Measured SAR:

Head:

1.18 W/kg
0.42 W/kg

Measured in:

1900 MHz

Body:

1.15 W/kg
0.41 W/kg

Measured in:

850 MHz

Simultaneous Transmission:

1.54 W/kg

Wireless Router:

0.74 W/kg

Buyers information

Price:

€ 240
€ 360

User Manual:

This is the official Samsu​ng Galaxy M31 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
Aug 31, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless