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Samsung Galaxy S24 (Snapdragon) vs Galaxy S21

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Samsung Galaxy S24 (Snapdragon) vs Galaxy S21

83 out of 100
Samsung Galaxy S24 (Snapdragon)
VS
66 out of 100
Samsung Galaxy S21
Samsung Galaxy S24 (Snapdragon)
Samsung Galaxy S21

Here we compared two flagship smartphones: the 6.2-inch Samsung Galaxy S24 (Snapdragon) (with Qualcomm Snapdragon 8 Gen 3) that was released on January 17, 2024, against the Samsung Galaxy S21, which is powered by Exynos 2100 and came out 3 years and 1 month before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy S24 (Snapdragon)
  • 2.2x better performance in AnTuTu Benchmark (1951K versus 903K)
  • The rear camera has a 3x optical zoom
  • Delivers 63% higher peak brightness (1403 against 862 nits)
  • Shows 10% longer battery life (19:44 vs 17:54 hours)
  • Newer Bluetooth version (v5.3)
  • The phone is 3 years and 1 month newer
  • Thinner bezels – 5% more screen real estate
  • Faster storage type - UFS 4.0 versus UFS 3.1
  • 64% faster in single-core GeekBench 6 test: 2188 and 1331 points
Reasons to consider the Samsung Galaxy S21
  • Slow-motion recording at 960FPS
  • Has 2 SIM card slots

Review

Evaluation of Samsung Galaxy S24 (Snapdragon) and Galaxy S21 crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
NanoReview Score
Final comparison evaluation
Choose the importance of each parameter to more accurately identify the smartphone that best meets your particular needs.

Tests and specifications

Comparison table of technical specifications and tests
Phone:
Galaxy S24 (Snapdragon)
vs
Galaxy S21

Display

TypeDynamic AMOLEDDynamic AMOLED
Size6.2 inches6.2 inches
Resolution1080 x 2340 pixels1080 x 2400 pixels
Aspect ratio19.5:920:9
PPI416 ppi421 ppi
Refresh rate120 Hz120 Hz
Adaptive refresh rateYes (24-120 Hz)Yes (48-120 Hz)
Max rated brightness2600 nits800 nits
HDR supportYes, HDR10+Yes, HDR10+
Screen protectionGorilla Glass Victus 2Gorilla Glass Victus
Screen-to-body ratio90.9%85.9%
Display features - DCI-P3
- Always-On Display		 - DCI-P3
- Always-On Display
Display tests
RGB color space - 99.5%
PWM - 240 Hz
Response time - 5 ms
Contrast - ∞ Infinity
Peak brightness test (auto)

Design and build

Height147 mm (5.79 inches)151.7 mm (5.97 inches)
Width70.6 mm (2.78 inches)71.2 mm (2.8 inches)
Thickness7.6 mm (0.3 inches)7.9 mm (0.31 inches)
Weight167 g (5.89 oz)169 g (5.96 oz)
WaterproofIP68IP68
Advanced coolingVapor chamber -
Rear materialGlassPlastic
Frame materialMetalMetal
ColorsBlack, Gray, Blue, Green, Orange, Purple, YellowWhite, Gray, Pink, Purple
Fingerprint scannerYes, in-displayYes, in-display
Screen-to-body ratio

Performance

Tests of Samsung Galaxy S24 (Snapdragon) and Samsung Galaxy S21 in the benchmarks
SoC
ChipsetQualcomm Snapdragon 8 Gen 3Samsung Exynos 2100
Max clock3300 MHz2900 MHz
CPU cores8 (1 + 3 + 2 + 2)8 (1 + 3 + 4)
Architecture- 2 cores at 2.27 GHz: Cortex-A520
- 2 cores at 2.96 GHz: Cortex-A720
- 3 cores at 3.15 GHz: Cortex-A720
- 1 core at 3.3 GHz: Cortex-X4		- 4 cores at 2.2 GHz: Cortex-A55
- 3 cores at 2.81 GHz: Cortex-A78
- 1 core at 2.91 GHz: Cortex-X1
L3 cache12 MB -
ManufacturingTSMCSamsung
Lithography process4 nanometers5 nanometers
Neural processor (NPU)HexagonYes
GraphicsAdreno 750Mali-G78 MP14
GPU shading units1536896
GPU clock903 MHz854 MHz
FLOPS~2774 GFLOPS~1530.4 GFLOPS

Benchmarks

Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
CPU459276253391
GPU815023281676
Memory369015158352
UX308612210361
Total score1951926903780
Samples[7 tests][17 tests]
3DMark Wild Life Performance
Max surface temperature - 38.9 °C
Stability47%66%
Graphics test104 FPS34 FPS
Graphics score175325715
PCMark 3.0
Web score1817312640
Video editing79837125
Photo editing3573729649
Data manipulation1637610398
Writing score2152116737

Memory

RAM
RAM size8 GB8 GB
Memory typeLPDDR5XLPDDR5
Memory clock4266 MHz2750 MHz
Channels42
Storage
Storage size128, 256, 512 GB128, 256 GB
Storage typeUFS 4.0UFS 3.1
Memory cardNoNo

Software

Operating systemAndroid 14 Android 11 (Can be upgraded to Android 14)
ROMOne UI 6.1One UI 6.0
OS size24.1 GB28.1 GB

Battery

Capacity4000 mAh4000 mAh
Max charge power25 W25 W
Battery typeLi-IonLi-Ion
ReplaceableNoNo
Wireless chargingYes (15 W)Yes (15 W)
Reverse chargingYes, (wireless)Yes, (wireless)
Fast chargingYes (59% in 30 min)Yes (55% in 50 min)
Full charging time1:15 hr1:35 hr
Battery life tests
Web browsing07:07 hr06:01 hr
Watching video15:32 hr11:06 hr
Gaming05:03 hr04:21 hr
Standby83 hr95 hr
General battery life

Main camera

Matrix50 megapixels12 megapixels
Image resolution8160 x 61204000 x 3000
ZoomOptical, 3xOptical, 1.1x
FlashLEDDual LED
StabilizationOpticalOptical
8K video recordingUp to 30FPSUp to 24FPS
4K video recordingUp to 60FPSUp to 60FPS
1080p video recordingUp to 60FPSUp to 60FPS
Slow motion240 FPS (1080p)960 FPS (720p)
Angle of widest lens120°120°
Lenses1) Standard: 50 MP
2) Telephoto: 10 MP
3) Ultrawide: 12 MP
1) Standard: 12 MP
2) Telephoto: 64 MP
3) Ultrawide: 12 MP
Camera features - Bokeh mode
- Pro mode
- RAW support		 - Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution50 MP12 MP
Aperturef/1.8f/1.8
Focal length24 mm26 mm
SensorSamsung ISOCELL GN3Sony IMX555
Sensor size1/1.56"1/1.76"
Pixel size1 micron1.8 micron
AutofocusPhase autofocus (Dual Pixel)Phase autofocus (Dual Pixel)
StabilizationOpticalOptical
Telephoto lens
Image resolution10 MP64 MP
Aperturef/2.4f/2.0
Focal length67 mm28 mm
SensorSamsung ISOCELL 3K1Samsung Bright S5KGW2
Sensor size1/3.94"1/1.72"
Pixel size1 micron0.8 micron
StabilizationOpticalOptical
Ultra-wide lens
Image resolution12 MP12 MP
Aperturef/2.2f/2.2
Focal length13 mm13 mm
SensorSony IMX564Sony IMX563
Sensor size1/2.55"1/2.55"
Pixel size1.4 micron1.4 micron
StabilizationDigitalDigital

DxOMark main camera tests

Photo quality
Video quality
Generic main camera score
Bokeh6570
Preview6972
Zoom135126
SamplesPhoto samples of Samsung Galaxy S24 (Snapdragon) from DxOMarkPhoto samples of Samsung Galaxy S21 from DxOMark

Selfie camera

Megapixels12 megapixels10 megapixels
Image resolution4000 x 30003872 x 2592
Aperturef/2.2f/2.2
Focal length26 mm26 mm
SensorSamsung S5K3LUSony IMX374
Sensor size1/3.2"1/3.24"
Pixel size1.12 micron1.22 micron
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationDigitalDigital
Video resolution2160p (4K) at 60 FPS2160p (4K) at 60 FPS
Depth sensor (TOF 3D)NoNo

Connectivity

Wi-Fi standardWi-Fi 6E (802.11 a/b/g/n/ac/ax)Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version5.35
Bluetooth featuresLELE, A2DP
USB typeUSB Type-CUSB Type-C
USB version3.23.2
USB features - Charging
- USB-Storage mode
- OTG		 - Charging
- USB-Storage mode
- USB-Host mode
- OTG
DisplayPortYes, DP 1.2 -
GPSGPS, GLONASS, Beidou, Galileo, QZSSGPS, GLONASS, Beidou, Galileo
NFC*YesYes
Infrared portNoNo
Network
Number of SIM*12
Type of SIM cardNanoNano
Multi SIM mode - Standby
eSIM support*YesYes
Hybrid slotNoNo
LTE Cat*2024
5G supportYesYes

Sound

SpeakersStereoStereo
Headphone audio jackNoNo
FM radioNoNo
Dolby AtmosYesYes
Speakers test
Max loudness

Other

CategoryFlagshipFlagship
AnnouncedJanuary 2024January 2021
Release dateJanuary 2024February 2021
Launch price$799$800
SAR (head)0.87 W/kg0.46 W/kg
SAR (body)1.35 W/kg1.51 W/kg
Sensors - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled chargerNot included -
Further details
Notes on Galaxy S24 (Snapdragon):
    - The 128 GB variant features UFS 3.1 memory, other models have UFS 4.0.
    - There are two models: one with dual Nano SIM, and the other with 1 Nano SIM + eSIM.
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
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