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Apple iPhone 12 vs Samsung Galaxy Watch 4 (40mm) vs Samsung Galaxy S21

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

Comparison mode:

Display

Size:

6.1 inches
1.2 inches
6.2 inches

Resolution:

2532 x 1170 pixels, 19.5:9 ratio, 457 PPI
450 x 450 pixels, 530 PPI
2400 x 1080 pixels, 20:9 ratio, 424 PPI

Technology:

OLED
Super AMOLED
Dynamic AMOLED

Refresh rate:

60Hz
120Hz (adaptive)

Screen-to-body:

87.24 %
86.06 %

Peak brightness:

1200 cd/m2 (nit)
1300 cd/m2 (nit)

Features:

HDR support, Oleophobic coating, Scratch-resistant glass (Ceramic Shield), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass DX+), Ambient light sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Apple A14 Bionic
Exynos W920
Qualcomm Snapdragon 888

Processor:

Hexa-core, 3100 MHz, 64-bit, 5 nm
5 nm
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Yes
Adreno 660

RAM:

4GB
1.5GB
8GB LPDDR5

Internal storage:

64GB (NVMe), not expandable
16GB
128GB (UFS 3.0), not expandable

Device type:

Smartphone
Smartphone

OS:

iOS (15.x, 14.x)
Wear OS
Android (11), Samsung One UI

Battery

Capacity:

2815 mAh
247 mAh
4000 mAh

Type:

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

Battery life test results:

Charging:

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

Max charge speed:

Wireless: 15.0W
Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Dual camera
Triple camera

Main camera:

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

Specifications:

Aperture size: F1.6; Focal length: 26 mm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; Pixel size: 1.8 μm

Second camera:

12 MP (Ultra-wide, Sapphire crystal lens cover)
64 MP (Telephoto, OIS, PDAF)

Specifications:

Aperture size: F2.4; Focal Length: 13 mm
Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Third camera:

12 MP (Ultra-wide, Autofocus)

Specifications:

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

Video recording:

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

Features:

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

Front:

12 MP (EIS, HDR, Slow-motion videos)
10 MP (PDAF, HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)
3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

5.78 x 2.81 x 0.29 inches (146.7 x 71.5 x 7.4 mm)
5.97 x 2.80 x 0.31 inches (151.7 x 71.2 x 7.9 mm)

Weight:

5.78 oz (164.0 g)
6.03 oz (171.0 g)

Materials:

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

Materials & Colors:

Black, Silver, Green, Gold

Resistance:

Water, Dust; IP68
Water (up to 50 meters), Dust; IP68; MIL-STD-810 certified
Water, Dust; IP68

Biometrics:

3D Face unlock
2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

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

Colors:

Black, White, Red, Green, Blue, Purple
Phantom pink, Violet, Gray, White

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
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), 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), 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)

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+), 46, 48(3600)

UMTS:

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

Data Speed:

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

SIM type:

Nano SIM, eSIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes

Multimedia

Headphones:

No 3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Multiple speakers
Loudspeaker
Earpiece, Multiple speakers

Features:

Dolby Atmos
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation
for Noise cancellation, Video recording

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

USB:

Lightning
Type-C (reversible), USB 3.2

Features:

Charging, Headphones port
Charging, Headphones port, OTG, Video out

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass, Barometer
Accelerometer, Gyroscope, Compass, Heart rate, Barometer, ECG, Blood Oxygen
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other:

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

Hearing aid compatible:

M3, T4
M3, T3

Regulatory Approval

FCC approval:

Date approved:

Dec 08, 2020

FCC ID value:

A3LSMG991U

Measured SAR:

Head:

0.36 W/kg

Body:

1.08 W/kg

Simultaneous Transmission:

3.96 W/kg

Wireless Router:

1.09 W/kg

Phablet:

2.49 W/kg

Buyers information

Price:

$ 829
$ 800

In The Box:

USB-C to Lightning Cable, Documentation
C to C Data Cable, Ejection Pin

Availability

Officially announced:

Oct 13, 2020
Aug 11, 2021
Jan 14, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless