Apple iPhone X vs Samsung Galaxy S21+ Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

9.0
Apple iPhone X
8.5
Samsung Galaxy S21+
Apple iPhone X Samsung Galaxy S21+
Released · Nov 03, 2017
Released · Jan 29, 2021
5.8-inch · 2436x1125px
6.7-inch · 2400x1080px
Dual camera
Triple camera
3GB · 256GB
8GB · 128GB
2716 mAh
4800 mAh
Check prices

Design

Dimensions
5.65 x 2.79 x 0.30 inches
143.6 x 70.9 x 7.7 mm
6.35 x 2.98 x 0.31 inches
161.5 x 75.6 x 7.8 mm
Weight
6.14 oz (174.0 g) 7.13 oz (202.0 g)
Materials
Back: Glass
Frame: Stainless steel
Back: Glass (Corning Gorilla Glass Victus)
Frame: Aluminum
Resistance
Water, Dust; IP67 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
Silver, Space gray Phantom silver, Black, Violet

Display

Size
5.8-inch 6.7-inch
Resolution
2436x1125px, 19.5:9 ratio, 459 PPI 2400x1080px, 20:9 ratio, 393 PPI
Technology
OLED Dynamic AMOLED
Refresh rate
120Hz (adaptive)
Screen-to-body
82.35 % 88.63 %
Peak brightness
625 cd/m2 (nit) 1300 cd/m2 (nit)
Features
HDR support, Pressure-sensitive, Oleophobic coating, Scratch-resistant glass, Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip
Apple A11 Bionic APL1W72 (10 nm) Qualcomm Snapdragon 888 (5 nm)
Processor
Hexa-core
2390 MHz
Monsoon and Mistral
Octa-core
1x2.84GHz Kryo 680
3x2.42GHz Kryo 680
4x1.80GHz Kryo 680
GPU
Apple 3-core GPU Adreno 660
RAM
3GB (LPDDR4) 8GB (LPDDR5)
Internal storage
256GB 128GB (UFS 3.0)
Storage expansion
not expandable not expandable
OS
iOS (15.x, 14.x, 13.x, 12.x, 11.x) Android (13, 12, 11), Samsung One UI

Battery

Capacity
2716 mAh 4800 mAh
Type
Li - Ion Li - Polymer
Charging
USB Power Delivery, Qi wireless charging Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Charge speed
Wired: 15.0W
Wireless: 7.5W
Wired: 25.0W
Wireless: 15.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
5h 26min
Browsing
10h 50min
Video
8h 27min
Gaming
8h 36min

Camera

Rear
Dual camera Triple camera
Main camera
12 MP (Sapphire crystal lens cover, OIS, PDAF, CMOS image sensor, BSI sensor)
Aperture size: F1.8
Focal length: 28 mm
Sensor size: 1/3"
Pixel size: 1.22 μm
12 MP (OIS, PDAF)
Aperture size: F1.8
Focal length: 26 mm
Sensor size: 1/1.76"
Pixel size: 1.8 μm
Second camera
12 MP (Telephoto, Sapphire crystal lens cover, OIS, PDAF, CMOS image sensor, BSI sensor)
Optical zoom: 2.0x
Aperture size: F2.4
Focal Length: 52 mm
Sensor size: 1/3.4"
Pixel size: 1 μm
12 MP (Ultra-wide, PDAF)
Aperture size: F1.8
Focal Length: 13 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Third camera
64 MP (Telephoto, OIS, PDAF)
Aperture size: F2.0
Focal Length: 29 mm
Sensor size: 1/2.55"
Pixel size: 0.8 μm
Flash
Quad LED LED
Video recording
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (30 fps)
OIS, Time-lapse video, Continuous autofocus, Video light, Video calling, Video sharing
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
OIS, HDR, Hyperlapse, Video light, EIS
Front
7 MP (HDR), Video capture: 1920x1080 (Full HD) 10 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
802.11 a,b,g,n,ac,dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band
MIMO, Wi-Fi Direct, Hotspot
USB
Lightning Type-C, USB 3.2
Hearing aid compatible
M3/T4 M3/T3
Location
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Barometer Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
NFC, UMA (Wi-Fi Calling) NFC, ANT+

Multimedia

Headphones
No 3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers
Features
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation, Video recording Noise cancellation, Video recording

Cellular

5G
Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
4G (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), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 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), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+) Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
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 Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
SIM type
Nano SIM Nano SIM
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: Dec 18, 2020
FCC ID value: A3LSMG996U
Measured SAR
Head: 0.65 W/kg
Body: 0.95 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.04 W/kg
Phablet: 3.97 W/kg

Buyers information

MSRP
$ 1149 $ 1000
In The Box
EarPods with Lightning Connector, Lightning to 3.5 mm Headphone Jack Adapter, Lightning to USB Cable, USB Power Adapter, Documentation C to C Data Cable, Ejection Pin

Availability

Officially announced
Sep 12, 2017 Jan 14, 2021

Alternative variants

with 64 GB storage
Internal storage 64GB
MSRP $ 999
with 256GB storage
Internal storage 256GB
MSRP $ 1050
A1865
for Europe
System chip Samsung Exynos 2100 (5 nm)
Processor Octa-core
1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55
GPU Mali G78 MP14
Weight 7.05 oz (200.0 g)
5G Bands SA, NSA, Sub-6
FCC approval Date approved: Dec 18, 2020
FCC ID value: A3LSMG996B
Measured SAR Head: 0.24 W/kg
Body: 0.75 W/kg
Simultaneous Transmission: 3.59 W/kg
Wireless Router: 1.26 W/kg
Phablet: 1.95 W/kg
FCC OKs Cingular\'s purchase of AT&T Wireless