Samsung Galaxy M21 vs Samsung Galaxy S24 Specs Comparison

Availability

Officially announced
Mar 18, 2020	Jan 17, 2024
Prices (MSRP)
	8GB/128GB - $800 | €899 8GB/256GB - $860

Design

Dimensions
6.26 x 2.96 x 0.35 inches 159.0 x 75.1 x 8.9 mm	5.79 x 2.78 x 0.30 inches (~0.35 inches with camera bump) 147 x 70.6 x 7.6 mm (~8.85 mm with camera bump)
Weight
6.63 oz / 188.0 g	5.93 oz / 168.0 g
Materials
Back: Plastic Frame: Plastic	Back: Glass (Corning Gorilla Glass Victus 2) Frame: Aluminum
Resistance
	Water, Dust; IP68
Biometrics
2D Face unlock, Fingerprint (touch)	Ultrasonic in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Midnight blue, Raven black	Onyx Black, Marble Grey, Cobalt Violet, Amber Yellow, Jade Green, Sandstone Orange, Sapphire Blue

Display

Size
6.4-inch, 84.11% screen-to-body	6.2-inch, 90.87% screen-to-body
Type
Super AMOLED, 420 nits	Dynamic AMOLED, 120Hz, HDR, 2600 nits
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI	2340x1080px, 19.5:9 ratio, 416 PPI
Protection
Corning Gorilla Glass 3	Corning Gorilla Glass Victus 2
Features
Scratch-resistant glass, Proximity sensor

PhoneArena Display Test

Bright Max (20% APL)
Untested	2498 (Excellent)
Bright Min
Untested	0.9 (Excellent)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Exynos 9611 (10 nm)	Snapdragon 8 Gen 3 SM8650-AB (4 nm) International version - Exynos 2400
Processor
Octa-core 4x2.3GHz Cortex-A73 4x1.7G​Hz Cortex-A53	Octa-core 1x3.39GHz Cortex-X4 3x3.1GH​z Cortex-A720 2x2.9​GHz Cortex-A720 2x2.2​GHz Cortex-A520 International version - Deca-core, 1x3.2GHz Cortex-X4, 2x2.9GH​z Cortex-A720, 3x2.6​GHz Cortex-A720, 4x1.9​5GHz Cortex-A520
GPU
Mali-G72 MP3	Adreno 750 International version - Xclipse 940
Memory
4GB (LPDDR4)/64GB 6GB/128GB	8GB (LPDDR5X)/128GB (UFS 3.1) 8GB/256GB (UFS 4.0)
Storage expansion
microSDXC up to 512 GB	not expandable
OS
Android (11, 10)	Android (15, 14)

PhoneArena Performance Test

GeekBench 6 Single
Untested	2119
GeekBench 6 Multi
Untested	6820
3D Mark High
Untested	4246
3D Mark Low
Untested	2588

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
6000 mAh, Li - Polymer	4000 mAh, Li - Ion
Charging
Fast charging	Fast charging Qi wireless charging, Reverse wireless charging
Charge speed
	Wired: 25.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

6h 37min

Browsing

16h 18min

Video

8h 20min

Gaming

10h 45min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera	Triple camera
Main camera
48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm	50 MP (OIS, PDAF) Sensor name: Samsung GN3 Aperture size: F1.8 Focal length: 24 mm Sensor size: 1/1.56" Pixel size: 1.0 μm
Second camera
8 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/4" Pixel size: 1.12 μm	12 MP (Ultra-wide) Sensor name: Sony IMX564 Aperture size: F2.0 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Third camera
5 MP (Depth information) Aperture size: F2.2	10 MP (Telephoto) Sensor name: Samsung S5K3K1 Aperture size: F2.4 Focal Length: 67 mm Sensor size: 1/3.94" Pixel size: 1.0 μm
Flash
LED	LED
Video recording
4K UHD (30 fps), 1080p, 720p (240 fps) EIS	8K UHD (30 fps), 4K UHD (60 fps), 1080p (240 fps) HDR, Continuous autofocus, Picture-taking during video recording, 10-bit HDR
Front
20 MP (HDR) Video capture: 1080p (30 fps)	12 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

152

Overall

156

Photo

147

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.0	5.3
WLAN
dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	Wi-Fi 6,Wi-Fi 6E Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 2.0	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Proximity sensor	Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
	M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
	NFC

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Dolby Atmos
Screen mirroring
Wireless screen share
Radio
FM

Cellular

5G Bands
	n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, mmWave, 5G Ready
LTE Bands
1, 3, 5, 7, 8, 20	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
TDD Bands
38, 40, 41	38, 39, 40
3G Bands
1, 2, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A Pro Cat 20 (2000/150 Mbit/s)
Dual SIM
Yes
SIM type
Nano SIM	Dual Nano SIM + eSIM

Regulatory Approval

FCC approval
	Date approved: Nov 30, 2023 FCC ID value: A3LSMS921U
Measured SAR
	Head: 1.23 W/kg Body: 1.14 W/kg Simultaneous Transmission: 1.58 W/kg

Alternative variants

with 128GB storage

Memory	6GB/128GB

With 256GB internal storage

Memory	256GB (UFS 4.0)
Prices (MSRP)	$860

International

System chip	Exynos 2400 (4 nm)
Processor	Deca-core 1x3.2GHz Cortex-X4 2x2.9GH​z Cortex-A720 3x2.6​GHz Cortex-A720 4x1.9​5GHz Cortex-A520
GPU	Xclipse 940

Discover more

Full Specs Samsung Galaxy M21 Specs

Full Specs Samsung Galaxy S24 Specs PA Review Samsung Galaxy S24 Review