Screen size
Galaxy A216.5"
Galaxy A57Winner: 6.7"+3%
Quick verdict
Galaxy A57 leads the measured specs 18-3.
Measured wins
Galaxy A21
3
spec wins
Ties
2
equal specs
Galaxy A57
18
spec wins
Overall winner
Screen size
Technology
Galaxy A21
GSM / CDMA / HSPA / EVDO / LTE
Galaxy A57
GSM / HSPA / LTE / 5G
2G bands
Galaxy A21
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
Galaxy A57
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy A21
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA, CDMA2000 1xEV-DO
Galaxy A57
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Galaxy A21
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71 - USA
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired 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 A21
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Galaxy A57
HSPA, LTE, 5G
5G bands
Galaxy A21
-
Galaxy A57
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Announced
Galaxy A21
2020, April 08. Released 2020, June 26
Galaxy A57
2026, March 25
Status
Galaxy A21
Discontinued
Galaxy A57
Released Apr 10, 2026
Dimensions
Galaxy A21
167.8 x 76.7 x 8.1 mm (6.61 x 3.02 x 0.32 in)
Galaxy A57
161.5 x 76.8 x 6.9 mm (6.36 x 3.02 x 0.27 in)
Weight
Galaxy A21
193 g (6.81 oz)
Galaxy A57
179 g (6.31 oz)
Build
Galaxy A21
Glass front, plastic back, plastic frame
Galaxy A57
Glass front (Gorilla Glass Victus+), aluminum frame, glass back (Gorilla Glass Victus+)
SIM
Galaxy A21
· Nano-SIM· Nano-SIM + Nano-SIM
Galaxy A57
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
Other
Galaxy A21
-
Galaxy A57
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Type
Galaxy A21
IPS LCD
Galaxy A57
Super AMOLED+, 120Hz, HDR10+, 1200 nits (HBM), 1900 nits (peak)
Size
Galaxy A21
6.5 inches, 102.0 cm2 (~79.3% screen-to-body ratio)
Galaxy A57
6.7 inches, 110.2 cm2 (~88.8% screen-to-body ratio)
Resolution
Galaxy A21
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 A21
-
Galaxy A57
Corning Gorilla Glass Victus+, Mohs level 5
OS
Galaxy A21
Android 10, One UI 2.0
Galaxy A57
Android 16, up to 6 major Android upgrades, One UI 8.5
Chipset
Galaxy A21
Mediatek MT6765 Helio P35 (12 nm)
Galaxy A57
Exynos 1680 (4 nm)
CPU
Galaxy A21
Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Galaxy A57
Octa-core (1x2.9 GHz Cortex-720 & 4x2.6 GHz Cortex-720 & 3x1.95 GHz Cortex-520)
GPU
Galaxy A21
PowerVR GE8320
Galaxy A57
Xclipse 550
Card slot
Galaxy A21
microSDXC (dedicated slot)
Galaxy A57
No
Internal
Galaxy A21
32GB 3GB RAM
Galaxy A57
128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Other
Galaxy A21
eMMC 5.1
Galaxy A57
UFS
Quad
Galaxy A21
16 MP, f/1.8, (wide), 1/3.06", 1.0µm, PDAF 8 MP, f/2.2, (ultrawide), 1/4.0", 1.12µm 2 MP (macro) Auxiliary lens
Galaxy A57
-
Features
Galaxy A21
LED flash, panorama, HDR
Galaxy A57
Best Face, LED flash, panorama, HDR
Video
Galaxy A21
1080p@30fps
Galaxy A57
4K@30fps, 1080p@30/60fps, HDR, gyro-EIS
Triple
Galaxy A21
-
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 A21
13 MP, f/2.0, (wide), 1/3.1", 1.12µm
Galaxy A57
12 MP, f/2.2, (wide), 1/3.2", 1.12µm
Video
Galaxy A21
1080p@30fps
Galaxy A57
4K@30fps, 1080p@30/60fps, 10-bit HDR
Loudspeaker
Galaxy A21
Yes
Galaxy A57
Yes, with stereo speakers
3.5mm jack
Galaxy A21
Yes
Galaxy A57
No
WLAN
Galaxy A21
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 A21
5.0, A2DP, LE
Galaxy A57
6.0, A2DP, LE
Positioning
Galaxy A21
GPS, GLONASS, BDS
Galaxy A57
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
Galaxy A21
Yes (market/region dependent)
Galaxy A57
Yes (market/region dependent)
Radio
Galaxy A21
FM radio
Galaxy A57
No
USB
Galaxy A21
USB Type-C 2.0
Galaxy A57
USB Type-C 2.0, OTG
Sensors
Galaxy A21
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Galaxy A57
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
Galaxy A21
Li-Po 4000 mAh
Galaxy A57
5000 mAh
Charging
Galaxy A21
15W wired
Galaxy A57
45W wired
Colors
Galaxy A21
Black
Galaxy A57
Navy, Gray, Icyblue, Lilac
Models
Galaxy A21
SM-A215U, SM-A215U1, SM-S215DL, SM-A215W
Galaxy A57
SM-A576B, SM-A576B/DS, SM-A576Q, SM-A576U1, SM-A576W, SM-A576Z, SM-A5760
SAR
Galaxy A21
1.27 W/kg (head) 0.60 W/kg (body)
Galaxy A57
0.85 W/kg (head) 1.20 W/kg (body)
Price
Galaxy A21
$ 54.44 / C$ 155.00 / £ 79.99 / € 91.89
Galaxy A57
₹ 56,999
SAR EU
Galaxy A21
-
Galaxy A57
0.70 W/kg (head) 1.07 W/kg (body)