Compare Samsung Galaxy S21

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Photos relative in size Front Side Back	Samsung Galaxy S21‎ $ 299.99	Samsung Galaxy Z Flip 4‎ $ 479.99	Apple iPhone 11‎

Dimensions	151.7 x 71.2 x 7.9 mm	84.9 x 71.9 x 17.1 mm	150.9 x 75.7 x 8.3 mm
Weight	171 grams	187 grams	194 grams
Stand-by	depends on usage	depends on usage	depends on usage
Talk time	depends on usage	depends on usage	depends on usage
Design type
Monoblock
Clamshell
Controls
Facial unlock
Fingerprint recognition	Pressure sensitive in-screen
Touchscreen	Multi-touch, Capacitive	Multi-touch, Capacitive	Multi-touch, Capacitive
Voice command
Voice dialing
Operating system
Android	11	12
iOS			13
User interface
One UI	3.1	4.1
Display
Auto-rotate
Color display	Adjustable display brightness, 16.777.216 colors (24 bits), Infinity-O Display, Always On feature, HDR10+, Hole-punch display	Adjustable display brightness, 16.777.216 colors (24 bits), Dynamic AMOLED 2X, HDR10, Hole-punch display, Foldable	Adjustable display brightness, 16.777.216 colors (24 bits), Liquid Retina, DCI-P3, Notch
Size	6.2 inch	6.7 inch	6.1 inch
Resolution	2400 x 1080 pixels	2640 x 1080 pixels	1792 x 828 pixels
Refresh rate	120 Hz	120 Hz
Aspect ratio	20:9	22:9	19.5:9
Peak brightness	1300 nits
Pixels Per Inch (PPI)	424	426	324
Screen-to-body ratio	85.9%		80%
External display		Super AMOLED
Size		1.9 inch
Resolution		260 x 512 pixels
Aspect ratio		16:8.1
Pixels Per Inch (PPI)		302
Screen-to-body ratio		15.4%
Hardware
Camera	Tri camera sensor, Auto focus, Image stabilization, Blink Shot, Digital zoom, Effects/camera settings, Flash, Geotagging, Face recognition, Quality settings, Macro mode, Mosaic photo, Burst (Continuous) Shooting, Night mode, Panoramic photo, Portrait mode, Smile Shot, Video recorder, self-timer	Dual camera sensor, Auto focus, Image stabilization, Digital zoom, Effects/camera settings, Flash, Geotagging, Face recognition, Quality settings, Panoramic photo, Portrait mode, Video recorder, self-timer	Dual camera sensor, Auto focus, Image stabilization, Blink Shot, Digital zoom, Effects/camera settings, Flash, Geotagging, Face recognition, Landscape mode, Macro mode, Burst (Continuous) Shooting, Panoramic photo, Portrait mode, Smile Shot, Video recorder
Type	12 MP + 12 MP + 64 MP	12 MP + 12 MP	12 MP + 12 MP
Angle of view (AOV)	120° + 76° + 79°	123° + 83°	120°
DxOMark score	116		119
F-number	f/1.8 + f/2.0 + f/2.2	f/1.8 + f/2.2	f/1.8 + f/2.4
Max. resolution	(camera) 4032 x 3024 pixels + (video) 3840 x 2160 pixels	(camera) 4000 x 3000 pixels	(camera) 4000 x 3000 pixels + (video) 3840 x 2160 pixels
Haptic feedback
Integrated antenna
Processor	Samsung Exynos 2100, Octa core	Qualcomm Snapdragon 8+ Gen 1, Octa core	Apple A13 Bionic
Clock Frequency	2.4 GHz + 2.8 GHz + 2.9 GHz
Secondary camera	Autofocus
Type	10 MP	10 MP	12 MP
Angle of view (AOV)	80°	80°
DxOMark score	98		91
F-number	f/2.2	f/2.4	f/2.2
Max. resolution	(video) 3840 x 2160 pixels		(camera) 4000 x 3000 pixels + (video) 3840 x 2160 pixels
Foldable design
Materials
Aluminium
Dust and waterproof	IP68	IPX8	IP68
Gorilla Glass	7 (Victus)
Plastic
Glass
Telephony
Dual SIM
eSIM
Flight mode
Integrated handsfree speaker
nano-SIM (4FF)
Vibrating alert
Videoconferencing
Operating frequency
Quad band
Data network
4G (LTE)	Cat 20 (2 Gbps)	Cat 20 (2 Gbps), Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41	Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 29, Band 30
5G
EDGE
GPRS
HSDPA	Cat20 42 Mbps
HSUPA	Cat6 5.76 Mbps
UMTS
Personalisation
Multiple homescreens
Widgets
Personal Information Management (PIM)
Agenda
Alarm clock
Calculator
Contact list
Date and time notation
Document viewer	Excel files, PowerPoint files, PDF files, Word files	Excel files, PDF files, Word files	Excel files, PowerPoint files, PDF files, Word files
Phonebook with groups
Photo phonebook
Reminder list
Stopwatch & countdown timer
To-do list
Voice memo
Available applications
Image editor
Java application support
Movie editor
Photo album
Video codec support	DivX, H.263, H.264, MPEG-4, Sorenson Spark, VC-1, VP8	MPEG-4	H.264, H.265, MPEG-4
Video file support	3GP, 3G2, ASF, AVI, FLV, M4V, MKV, MP4, WebM, WMV	3GP, 3G2, ASF, AVI, FLV, M4V, MKV, MP4, WebM, WMV	AVI, M4V, MOV, MP4
Messaging
E-mail	POP3, SMTP, IMAP4	POP3, SMTP, IMAP4	POP3, SMTP, IMAP4
Instant messaging	Google Talk
MMS	Video MMS		Changeable MMS distribution list, Video MMS
Predictive Text Input	T9
SMS	Group messaging, Receive and send concatenated messages	Group messaging, Receive and send concatenated messages	Group messaging, Receive and send concatenated messages
Internet
Internet browser		Google Chrome	Safari browser
RSS reader
YouTube support
Navigation
A-GPS
Beidou
Build-in navigation system	Google Maps, Google Maps Navigation	Google Maps, Google Maps Navigation	Apple Maps
Digital Compass
Galileo
GLONASS
GPS receiver
Quasi-Zenith (QZSS)
Audio
Audio codec support	AAC, AAC+, AC3, eAAC+, AMR, FLAC, MIDI, Mobile XMF, MP3 VBR, OGG Vorbis, OTA, RTTL/RTX	AAC, AMR, DSF, FLAC, MIDI, Mobile XMF, MP3 VBR, OGG Vorbis, OTA, RTTL/RTX	AAC, AAC Protected, AC3, HE-AAC, AIFF, Apple Lossless, Audible, FLAC, MP3 VBR
Audio file support	M4A, MP3, WAV, WMA	3GA, APE, M4A, MP3, WAV, WMA	MP3, WAV
Polyphonic ringtones	MP3 ringtones		MP3 ringtones
Stereo speakers
Build-in memory
Internal memory
Size (RAM)	8 GB	8 GB	4 GB
Storage	128 GB + 256 GB	128 GB + 256 GB + 512 GB	128 GB + 256 GB + 64 GB
Connections
USB	v3.2, Type-C	v3.0, Type-C
Connectivity
ANT+
Bluetooth	v5.0, Advanced Audio Distribution Profile (A2DP)	v5.2	v5.0, Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Hands-Free Profile (HFP), Human Interface Device Profile (HID), Personal Area Network Profile (PAN), Phonebook Access Profile (PBAP)
DLNA support
NFC
Synchronisation	ActiveSync, SyncML		ActiveSync, Apple iSync
Tethering
Ultra-wideband (UWB)
WAP	2.0		2.0
Wireless Lan (WLAN/Wi-Fi)	Wi-Fi 6 (802.11ax), WiFi Direct support	Wi-Fi 6 (802.11ax), WiFi Direct support	Wi-Fi 6 (802.11ax)
Video Out
Power supply
Battery	Li-ion		Li-ion
Capacity	4000 mAh	3700 mAh	3110 mAh
Fast charging	Samsung Adaptive Fast Charging, USB Power Delivery	Qualcomm Quick Charge, Samsung Adaptive Fast Charging
Max. power	25 Watt	25 Watt
Wireless charging	Omgekeerd opladen	Omgekeerd opladen
Max. power	15 Watt	10 Watt
Sensors
Ambient light sensor
Barometer
Gesture recognition
Gyroscope
Proximity sensor