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Samsung Galaxy S24 Ultra vs Samsung Galaxy S21 Ultra 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.

Comparison mode:
Specs Size
Differences only
7.7
Samsung Galaxy S24 Ultra
9.1
Samsung Galaxy S21 Ultra
Samsung Galaxy S24 Ultra Samsung Galaxy S21 Ultra
Released · Jan 31, 2024
Released · Jan 29, 2021
6.8-inch · 3088x1440px
6.8-inch · 3200x1440px
Quad camera
Quad camera
12GB · 256GB
12GB · 128GB
5000 mAh
5000 mAh
Check prices Check prices

Design

Dimensions
6.39 x 3.11 x 0.34 inches (~0.37 inches with camera bump)
162.3 x 79 x 8.6 mm (~9.5 mm with camera bump) 		6.50 x 2.98 x 0.35 inches (~0.37 inches with camera bump)
165.1 x 75.6 x 8.9 mm (~9.4 mm with camera bump)
Weight
8.22 oz (233.0 g) 8.04 oz (229.0 g)
Materials
Back: Glass (Corning Gorilla Glass Armor)
Frame: Titanium 		Back: Glass (Corning Gorilla Glass Victus)
Frame: Aluminum
Resistance
Water, Dust; IP68 Water, Dust; IP68
Biometrics
Ultrasonic in-screen fingerprint 2D Face unlock, Ultrasonic in-screen fingerprint
Features
Stylus
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Titanium Black, Titanium Gray, Titanium Violet, Titanium Yellow, Titanium Blue, Titanium Green, Titanium Orange Phantom black, Silver

Display

Size
6.8-inch 6.8-inch
Resolution
3088x1440px, 19.5:9 ratio, 501 PPI 3200x1440px, 20:9 ratio, 516 PPI
Technology
Dynamic AMOLED Dynamic AMOLED
Refresh rate
120Hz 120Hz (adaptable)
Screen-to-body
89.12 % 89.33 %
Peak brightness
2600 cd/m2 (nit) 1500 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass Armor), Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 8 Gen 3 SM8650-AB (4 nm) Qualcomm Snapdragon 888 SM8350 (5 nm)
Processor
Octa-core
1x3.39GHz Cortex-X4
5x3.1GH​z Cortex-A720
2x2.2​GHz Cortex-A520 		Octa-core
1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680
GPU
Adreno 750 Adreno 660
RAM
12GB (LPDDR5X) 12GB (LPDDR5)
Internal storage
256GB (UFS 4.0) 128GB (UFS 3.1)
Storage expansion
not expandable not expandable
OS
Android (14), up to 7 OS updates Android (14, 13, 12, 11), One UI

Battery

Capacity
5000 mAh 5000 mAh
Type
Li - Ion Li - Polymer
Charging
Fast charging, Qi wireless charging, Reverse 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: 45.0W
Wireless: 15.0W 		Wired: 25.0W
Wireless: 15.0W
PhoneArena Battery Tests
Battery Life Estimate
7h 39min
Browsing
20h 6min
Video
8h 18min
Gaming
13h 53min
Battery Life Estimate
6h 15min
Browsing
14h 43min
Video
8h 52min
Gaming
8h 40min
Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera Quad camera
Main camera
200 MP (OIS, Laser and PDAF)
Sensor name: Samsung ISOCELL HP2
Aperture size: F1.7
Focal length: 24 mm
Sensor size: 1/1.3"
Pixel size: 0.6 μm 		108 MP (OIS, Laser and PDAF)
Aperture size: F1.8
Focal length: 24 mm
Sensor size: 1/1.33"
Pixel size: 0.8 μm
Second camera
12 MP (Ultra-wide, PDAF)
Sensor name: Sony IMX564
Aperture size: F2.2
Focal Length: 13 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm 		12 MP (Ultra-wide, PDAF)
Aperture size: F2.2
Focal Length: 13 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Third camera
10 MP (Telephoto, OIS, PDAF)
Sensor name: Sony IMX754
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 67 mm
Sensor size: 1/3.52"
Pixel size: 1.12 μm 		10 MP (Telephoto, OIS, PDAF)
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 70 mm
Sensor size: 1/3.2"
Pixel size: 1.22 μm
Fourth camera
50 MP (Telephoto, Periscope, OIS, PDAF)
Sensor name: Sony IMX854
Optical zoom: 5.0x
Aperture size: F3.4
Focal Length: 111 mm
Sensor size: 1/2.52"
Pixel size: 0.7 μm 		10 MP (Telephoto, Periscope, OIS, PDAF)
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 70 mm
Sensor size: 1/3.2"
Pixel size: 1.22 μm
Flash
LED LED
Video recording
7680x4320 (8K UHD) (30 fps), 3840x2160 (4K UHD) (120 fps), 1920x1080 (Full HD) (240 fps)
HDR, Continuous autofocus, Picture-taking during video recording 		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
12 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps) 40 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)
PhoneArena Camera Tests
156
Overall
162
Photo
151
Video
N/A
Overall
N/A
Photo
N/A
Video
Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.3 5.1
WLAN
802.11 a,b,g,n,ac,ax(Wi-Fi 6),Wi-Fi 6E,Wi-Fi 7,tri-band
Wi-Fi Direct, Hotspot 		802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band
MIMO, Wi-Fi Direct, Hotspot
USB
Type-C, USB 3.2 Type-C, USB 3.2
Hearing aid compatible
M3/T4 M3/T3
Location
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, Barometer Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
NFC, Ultra Wideband (UWB) NFC, ANT+

Multimedia

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

Cellular

5G
Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6, mmWave 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), 32(1500 L-band), 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), 5(850), 8(900) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s LTE-A Pro Cat 20 (2000/150 Mbit/s)
SIM type
Dual Nano SIM + eSIM Nano SIM

Regulatory Approval

FCC approval
Date approved: Nov 29, 2023
FCC ID value: A3LSMS928U 		Date approved: Dec 22, 2020
FCC ID value: A3LSMG998U
Measured SAR
Head: 1.26 W/kg
Body: 0.62 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.26 W/kg 		Head: 0.77 W/kg
Body: 1.02 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.16 W/kg
Phablet: 3.15 W/kg

Buyers information

MSRP
$ 1300 / € 1449 $ 1200 / € 1399
In The Box
USB-C cable, SIM ejector tool, Paperwork C to C Data Cable, Ejection Pin

Availability

Officially announced
Jan 17, 2024 Jan 14, 2021

Alternative variants

With 512GB internal storage
Internal storage 512GB
MSRP $ 1420
with 256GB storage
Internal storage 256GB
Colors Phantom black
MSRP $ 1250
With 1TB internal storage
Internal storage 1024GB
MSRP $ 1660
with 512GB storage
RAM 16GB
Internal storage 512GB
Colors Phantom black
MSRP $ 1380
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 8.01 oz (227.0 g)
5G Bands SA, NSA, Sub-6
FCC approval Date approved: Dec 22, 2020
FCC ID value: A3LSMG998B
Measured SAR Head: 0.16 W/kg
Body: 0.72 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.34 W/kg
Phablet: 3.86 W/kg
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