Apple iPhone 12 mini vs Samsung Galaxy A21 vs Samsung Galaxy A51

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

Display

Size:

5.4 inches
6.5 inches
6.5 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 477 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI

Technology:

OLED
IPS LCD
Super AMOLED

Screen-to-body:

85.83 %
79.20 %
87.37 %

Peak brightness:

1200 cd/m2 (nit)

Features:

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

Hardware

System chip:

Apple A14 Bionic
Mediatek Helio P35
Samsung Exynos 9611

Processor:

Hexa-core, 3100 MHz, 64-bit, 5 nm
Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU:

Yes
PowerVR GE8320
Mali-G72 MP3

RAM:

4GB
3GB LPDDR4
4GB LPDDR4

Internal storage:

64GB (NVMe), not expandable
32GB (eMMC 5.1), available to use: 19.8 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 (14.x)
Android (10), Samsung One UI
Android (11, 10), Samsung One UI

Battery

Capacity:

2227 mAh
4000 mAh
4000 mAh

Type:

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

Battery life test results:

Charging:

USB Power Delivery, Qi wireless charging, MagSafe wireless charging
Fast charging
Fast charging

Max charge speed:

Wireless: 15.0W
Wired: 15.0W

Camera

Rear:

Dual camera
Quad camera
Quad camera

Main camera:

12 MP (Sapphire crystal lens cover, OIS, PDAF)
16 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F1.6; Focal length: 26 mm
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

12 MP (Ultra-wide, Sapphire crystal lens cover)
8 MP (Ultra-wide)
12 MP (Ultra-wide)

Specifications:

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

Third camera:

2 MP (Macro)
5 MP (Macro)

Specifications:

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

Fourth camera:

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

Specifications:

Aperture size: F2.4
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Video recording:

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD)
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

Features:

OIS, Time-lapse video, Continuous autofocus, Picture-taking during video recording, Video light
Hyperlapse, EIS

Front:

12 MP (EIS, HDR, Slow-motion videos)
13 MP
32 MP (HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)
1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

5.18 x 2.53 x 0.29 inches (131.5 x 64.2 x 7.4 mm)
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

Weight:

4.76 oz (135.0 g)
6.81 oz (193.0 g)
6.07 oz (172.0 g)

Materials:

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

Resistance:

Water, Dust; IP68

Biometrics:

3D Face unlock
Fingerprint (touch)
2D Face unlock, In-screen fingerprint

Keys:

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

Colors:

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

Cellular

5G:

n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n71, n77, n78, n79, n260, n261, 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), 14(700 PS), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 32(1500 L-band), 66(AWS-3), 71(600)
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), 66(AWS-3), 71(600)
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 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500), 46, 48(3600)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)

UMTS:

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

Data Speed:

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A Cat 6 (300/50 Mbit/s), 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:

Nano SIM, eSIM
Nano SIM
Nano SIM

HD Voice:

Yes
Yes

VoLTE:

Yes

Multimedia

Headphones:

No 3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Dolby Atmos
Dolby Atmos

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM
FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.0
5.0

Wi-Fi:

802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, 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:

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

Features:

Charging, Headphones port
Charging
Charging, OTG

Location:

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

Sensors:

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

Other:

NFC, UMA (Wi-Fi Calling)
NFC
NFC, ANT+

Hearing aid compatible:

M3, T4
M4, T3

Regulatory Approval

FCC approval:

Date approved:

Apr 17, 2020
Nov 28, 2019

FCC ID value:

ZCASMA215U link
A3LSMA515FN link

Measured SAR:

Head:

0.42 W/kg
0.89 W/kg

Body:

1.27 W/kg
1.18 W/kg

Simultaneous Transmission:

1.27 W/kg
1.56 W/kg

Wireless Router:

1.27 W/kg
1.12 W/kg

Phablet:

2.76 W/kg

Buyers information

Price:

$ 729
$ 250
$ 400

User Manual:

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

In The Box:

USB-C to Lightning Cable, Documentation
This is the official Samsu​ng Galaxy A21 User Guide in English provided from the manufacturer.

Availability

Officially announced:

Oct 13, 2020
Apr 08, 2020
Dec 12, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless