Skip to content

Samsung Galaxy A24 (SM-A245M/N 128GB/4GB) vs Samsung Galaxy S21 Ultra (SM-G998B 128GB)

Side by side comparison between Samsung Galaxy A24 vs Samsung Galaxy S21 Ultra phones, differences, pros, cons and full specifications. What's the better?

,
Compare Samsung Galaxy S21 Ultra X Samsung Galaxy A24 (SM-A245M/N 128GB/4GB) 05Points
6.5"
AMOLED

1080x2340

50
MP

13mp

4GB
RAM

Octa-core

5000
mAh

(Non removable)

vs
28Points Samsung Galaxy S21 Ultra (SM-G998B 128GB) Compare Samsung Galaxy A24 X
6.8"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 Ultra (SM-G998B 128GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

Galaxy A24 (SM-A245M/N 128GB/4GB)} 5 Advantages Samsung Galaxy A24 (SM-A245M/N 128GB/4GB) vs Galaxy S21 Ultra (SM-G998B 128GB)} 28 Advantages Samsung Galaxy S21 Ultra (SM-G998B 128GB)
+Until 1TB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+195 grams (6.83 ounces)16%
Lighter
vs227 grams (7.95 ounces)
+8.3 millimeters (0.33 inches)7%
Thinner
vs8.9 millimeters (0.35 inches)
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+5.3 + A2DP/LEAdvantage
Bluetooth 5.3 + A2DP/LE is newer and faster
vs5.2 + A2DP/LE
2.2GHz 64bit Octa-core (6nm)vs+2.9GHz 64bit Octa-core (5nm)21%
More powerful processor, you can open your applications faster
4GB LPDDR4Xvs+12GB LPDDR52 times
More RAM memory. Typically more responsive and better for multitasking.
UFS 2.2vs+UFS 3.1Advantage
Fastest write and read storage.
Plastic body, glass frontvs+Aluminum frame, glass front/backAdvantage
More resistant material
Not supportedvs+HDR10+Advantage
The HDR10+ display provides vibrant colors and more details
90Hzvs+120Hz33%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
1080x2340 pixelsvs+1440x3200 pixels82%
Higher resolution screen
396 PPIvs+516 PPI30%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.5"vs+6.8"5%
Larger screen
(triple camera) 50MP + 5MP + 2MPvs+(quad camera) 108MP + 10MP + 10MP + 12MP146%
Higher resolution main camera
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
(front) 13MPvs+(front) 40MP2 times
Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)vs+8K UHD (7680x4320)15 times
More image quality for recording videos with the primary camera
(front) Full HD (1920x1080)vs+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
4G LTE-Avs+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
(4G LTE-A) 300 Mbpsvs+(5G SA/NSA) 5000 Mbps16 times
Faster for surfing the internet and download files
Not supportedvs+BarometerAdvantage
Sensors help you use the device
Virtual proximity sensorvs+Proximity sensorAdvantage
Sensors help you use the device
Not supportedvs+UWB (Ultra Wideband)Advantage
Sensors help you use the device
Not supportedvs+Qi wireless charging (Qi/PMA)Advantage
Wireless charging is another way to charge the battery.
1 slot (Single-SIM)
(dedicated slot)
vs+1 slot (Single-SIM) + e-SIM (Eletronic)Advantage
You can have more mobile carriers/operators on the same device.
Mono sound (not stereo)vs+Stereo soundAdvantage
Better sound quality for listening to music or clearer hands-free calls
Not supportedvs+FMAdvantage
The radio lets you listen to your songs and sports in general
802.11 a/b/g/n/ac [wifi5]vs+802.11 a/b/g/n/ac/ax [wifi6]Advantage
WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
USB 2.0 Type-C reversible connectorvs+USB 3.2 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
Not supportedvs+Gorilla Glass VictusAdvantage
Protection against scratches on the screen lets you carry your phone with your keys
Not supportedvs+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

23 Common items in both devices
128GB (101GB available)
Super AMOLED / Dynamic AMOLED
16 million
LED flash
PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras
OIS: Optical stabilization
HDR photo on both cameras / HDR photo/video on both cameras
+16 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences Clear highlight

📱 Model features

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
ModelGalaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
Other model namesGalaxy A24 4G LTE SM-A245M Single-SIM NFCGalaxy S21 Ultra 5G (SM-G998B Single-SIM)
Country or region available(Latin America)MexicoPeru
(Latin America), Mexico, Peru
Australia
Australia
BrandSamsungSamsung
Release date5/5/2023, Announced: 4/19/20231/29/2021, Announced: 1/14/2021
Depth8.3 millimeters (0.33 inches)8.9 millimeters (0.35 inches)
Size (width x height)77.6 x 162.1 millimeters (3.06 x 6.38 in)75.6 x 165.1 millimeters (2.98 x 6.5 in)
Weight195 grams (6.83 ounces)227 grams (7.95 ounces)
Build, materialsPlastic body, glass frontAluminum frame, glass front/back
Protection against water and othersNot supportedIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant

📲 Display

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
Display typeSuper AMOLEDDynamic AMOLED
Screen size6.5" inches6.8" inches
Screen-to-body ratio~82.4% (screen-to-body ratio)~89.4% (screen-to-body ratio)
Display resolution1080x2340 pixels (19.5:9)1440x3200 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch 10-points
Pixel density (dot pitch)396 PPI516 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedGorilla Glass Victus
Refresh rate90Hz120Hz
Display features1000nits[peak]1500nits[peak]
HDR10+
Always-On Display

🤖 Operating System

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
System versionAndroid 13Android 11
Firmware updateAndroid 14Android 14
User InterfaceOne UI 5.1 / 6.0One UI 3.1 / 4.1 / 5.1 / 6.0

⚙️ Processor

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
Chipset64bit: MediaTek Helio G99 (6nm)64bit: Samsung Exynos 2100 (5nm)
CPUOcta-core, 2 processors:
2x 2.2GHz ARM Cortex-A76 (Dual-core)
6x 2GHz ARM Cortex-A55 (Hexa-core)
Octa-core, 3 processors:
1x 2.9GHz ARM Cortex-X1 (Single-core)
3x 2.8GHz ARM Cortex-A78 (Triple-core)
4x 2.2GHz ARM Cortex-A55 (Quad-core)
GPU graphical controllerARM Mali-G57 MC2ARM Mali-G78 MP14 (854MHz)
Performance (benchmark)AnTuTu: 398500 (v9)
Geekbench: 1890 (v5.5), 1900 (v6.0)
GFXBench: 12fps (ES 3.1 onscreen)
AnTuTu: 657150 (v8), 727634 (v9)
Geekbench: 3457 (v5.2)
GFXBench: 51fps (ES 3.1 onscreen)

💽 Memory and storage

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
RAM memory4GB LPDDR4X12GB LPDDR5
Internal storage128GB (101GB available)
UFS 2.2
128GB (101GB available)
UFS 3.1
External storageUntil 1TB microSD, microSDXC
(dedicated slot)
Not supported

📶 Mobile networks

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
SIM card1 slot (Single-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
nano-SIM (4FF) + e-SIM
Maximum Download / Upload300/150 Mbps5000/1920 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat7 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 26, 28, 66)
TD-LTE (38, 40, 41)
VoLTE
LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66)
TD-LTE (38, 39, 40, 41)
VoLTE
Primary 5G networkNot supportedSA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 850/900/1700/1900/2100
Secondary 4G networkNot supportedLTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66)
TD-LTE (38, 39, 40, 41)
VoLTE
Secondary data networkNot supportedGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA

📷 Camera

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
Back camera (main camera)(triple camera)
50 megapixels
5MP ultrawide f/2.2123°1/5"1.12µm
2MP macro f/2.4
(quad camera)
108 megapixels
10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom
10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom
12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video
Main camera resolution8160x6120 pixels12000x9000 pixels
Video recording (primary)Full HD (1920x1080) 30 fps8K UHD (7680x4320) 24 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal lengthfeature not registered26mm lens
Sensor sizefeature not registered1/1.33" inches
Pixel sizefeature not registered1.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus on both cameras
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationOIS: Optical stabilization
ZoomOnly digital zoomDigital and optical zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedSupported
HDRHDR photo on both camerasHDR photo/video on both cameras
Camera extras1080p@30fps
720p@30/60/120fps
Slow motion
4K@60fps
1080p@240fps
720p@960fps

📸 Front camera

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
Front camera (secondary)13 megapixels40 megapixels
Front camera resolution4128x3096 pixels7296x5472 pixels
Video recording (secondary)Full HD (1920x1080)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.2 (aperture)
Focal lengthfeature not registered26mm lens
Sensor sizefeature not registered1/2.8" inches
Pixel sizefeature not registered0.7µm pixel

🔉 Sound and multimedia

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
LoudspeakerMono sound (not stereo)Stereo sound
32-bit/384kHz
Dolby Atmos
Tuned by AKG
Active noise cancellation2 microphones or more2 microphones or more
RadioNot supportedFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
USBUSB 2.0 Type-C reversible connectorUSB 3.2 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputNot supportedUSB Type-C (reversible)
Bluetooth5.3 + A2DP/LE5.2 + A2DP/LE
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedSupported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
SensorsAccelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Virtual proximity sensor
Accelerometer
Ambient light sensor
Barometer
Compass
Face unlock
Fingerprint sensor (under display)
Gesture
Gyroscope
Hall effect
Proximity sensor
UWB (Ultra Wideband)
Vibrating alertSupportedSupported

🔋 Battery

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
Battery typeLiPo: li-ion polymer (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity5000 mAh5000 mAh
Charger, watts25W Wired fast charging25W Wired fast charging
USB Power Delivery 3.0
Inductive / wireless chargingNot supported15W Qi wireless charging (Qi/PMA)
4.5W Reverse wireless charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Black, Lime Green, Blue, Dark red• Colors: Phantom Black, Silver, Titanium, Navy, Brown
• Samsung Pay (Visa, MasterCard)
• Samsung DeX
• Stylus pen support

☢️ Radiation rate

Galaxy A24 (SM-A245M/N 128GB/4GB)Galaxy S21 Ultra (SM-G998B 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.62W/kg (head), 0.49W/kg (body)0.24W/kg (head), 0.72W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered0.714W/kg (head), 1.58W/kg (body)
X

We use cookies to provide and improve our services. By using our site, you consent to cookies. See more details: Privacy policy.