Screen size
Galaxy A21s6.5"
Galaxy A57Winner: 6.7"+3%
Quick verdict
Galaxy A57 leads the measured specs 17-3.
Measured wins
Galaxy A21s
3
spec wins
Ties
3
equal specs
Galaxy A57
17
spec wins
Overall winner
Screen size
Technology
Galaxy A21s
GSM / HSPA / LTE
Galaxy A57
GSM / HSPA / LTE / 5G
2G bands
Galaxy A21s
GSM 850 / 900 / 1800 / 1900
Galaxy A57
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy A21s
HSDPA 850 / 900 / 1900 / 2100
Galaxy A57
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Galaxy A21s
1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
NFC
equal specs3.5mm jack
SD card
Stereo speakers
Galaxy A57
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 32, 38, 40, 41, 66
Speed
Galaxy A21s
HSPA, LTE
Galaxy A57
HSPA, LTE, 5G
5G bands
Galaxy A21s
-
Galaxy A57
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Announced
Galaxy A21s
2020, May 15. Released 2020, June 02
Galaxy A57
2026, March 25
Status
Galaxy A21s
Discontinued
Galaxy A57
Released Apr 10, 2026
Dimensions
Galaxy A21s
163.7 x 75.3 x 8.9 mm (6.44 x 2.96 x 0.35 in)
Galaxy A57
161.5 x 76.8 x 6.9 mm (6.36 x 3.02 x 0.27 in)
Weight
Galaxy A21s
192 g (6.77 oz)
Galaxy A57
179 g (6.31 oz)
Build
Galaxy A21s
Glass front, plastic frame, plastic back
Galaxy A57
Glass front (Gorilla Glass Victus+), aluminum frame, glass back (Gorilla Glass Victus+)
SIM
Galaxy A21s
· Nano-SIM· Nano-SIM + Nano-SIM
Galaxy A57
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
Other
Galaxy A21s
-
Galaxy A57
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Type
Galaxy A21s
PLS LCD
Galaxy A57
Super AMOLED+, 120Hz, HDR10+, 1200 nits (HBM), 1900 nits (peak)
Size
Galaxy A21s
6.5 inches, 102.0 cm2 (~82.8% screen-to-body ratio)
Galaxy A57
6.7 inches, 110.2 cm2 (~88.8% screen-to-body ratio)
Resolution
Galaxy A21s
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Galaxy A57
1080 x 2340 pixels, 19.5:9 ratio (~385 ppi density)
Protection
Galaxy A21s
-
Galaxy A57
Corning Gorilla Glass Victus+, Mohs level 5
OS
Galaxy A21s
Android 10, upgradable to Android 12, One UI 4.1
Galaxy A57
Android 16, up to 6 major Android upgrades, One UI 8.5
Chipset
Galaxy A21s
Exynos 850 (8 nm)
Galaxy A57
Exynos 1680 (4 nm)
CPU
Galaxy A21s
Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)
Galaxy A57
Octa-core (1x2.9 GHz Cortex-720 & 4x2.6 GHz Cortex-720 & 3x1.95 GHz Cortex-520)
GPU
Galaxy A21s
Mali-G52
Galaxy A57
Xclipse 550
Card slot
Galaxy A21s
microSDXC (dedicated slot)
Galaxy A57
No
Internal
Galaxy A21s
32GB 2GB RAM, 32GB 3GB RAM, 32GB 4GB RAM, 64GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 2GB RAM, 128GB 3GB RAM, 128GB 4/6GB RAM
Galaxy A57
128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Other
Galaxy A21s
eMMC 5.1
Galaxy A57
UFS
Quad
Galaxy A21s
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro) Auxiliary lens
Galaxy A57
-
Features
Galaxy A21s
LED flash, panorama, HDR
Galaxy A57
Best Face, LED flash, panorama, HDR
Video
Galaxy A21s
1080p@30fps
Galaxy A57
4K@30fps, 1080p@30/60fps, HDR, gyro-EIS
Triple
Galaxy A21s
-
Galaxy A57
50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide), 1/3.06", 1.12µm 5 MP, f/2.4, (macro)
Single
Galaxy A21s
13 MP, f/2.2, (wide), 1/3.1", 1.12µm
Galaxy A57
12 MP, f/2.2, (wide), 1/3.2", 1.12µm
Video
Galaxy A21s
1080p@30fps
Galaxy A57
4K@30fps, 1080p@30/60fps, 10-bit HDR
Loudspeaker
Galaxy A21s
Yes
Galaxy A57
Yes, with stereo speakers
3.5mm jack
Galaxy A21s
Yes
Galaxy A57
No
WLAN
Galaxy A21s
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Galaxy A57
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band or tri-band, Wi-Fi Direct
Bluetooth
Galaxy A21s
5.0, A2DP, LE
Galaxy A57
6.0, A2DP, LE
Positioning
Galaxy A21s
GPS, GLONASS, GALILEO, BDS
Galaxy A57
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
Galaxy A21s
Yes (market/region dependent)
Galaxy A57
Yes (market/region dependent)
Radio
Galaxy A21s
FM radio, RDS, recording
Galaxy A57
No
USB
Galaxy A21s
USB Type-C 2.0
Galaxy A57
USB Type-C 2.0, OTG
Sensors
Galaxy A21s
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Galaxy A57
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
Galaxy A21s
Li-Po 5000 mAh
Galaxy A57
5000 mAh
Charging
Galaxy A21s
15W wired
Galaxy A57
45W wired
Colors
Galaxy A21s
Black, White, Blue, Red
Galaxy A57
Navy, Gray, Icyblue, Lilac
Models
Galaxy A21s
SM-A217F, SM-A217F/DS, SM-A217F/DSN, SM-A217M, SM-A217M/DS, SM-A217N
Galaxy A57
SM-A576B, SM-A576B/DS, SM-A576Q, SM-A576U1, SM-A576W, SM-A576Z, SM-A5760
SAR EU
Galaxy A21s
0.42 W/kg (head) 1.54 W/kg (body)
Galaxy A57
0.70 W/kg (head) 1.07 W/kg (body)
Price
Galaxy A21s
About 220 EUR
Galaxy A57
₹ 56,999
SAR
Galaxy A21s
-
Galaxy A57
0.85 W/kg (head) 1.20 W/kg (body)