Samsung Galaxy J3 (2018) vs Samsung Galaxy A21 Specs Comparison
Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.
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Samsung Galaxy J3 (2018) | Samsung Galaxy A21 |
Released
·
Jun 13, 2018
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Released
·
Jun 29, 2020
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5.0-inch · 1280x720px
|
6.5-inch · 1600x720px
|
Single camera
|
Quad camera
|
2GB · 16GB
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3GB · 32GB
|
2600 mAh
|
4000 mAh
|
Design
Dimensions | |
---|---|
5.62 x 2.76 x 0.35 inches 142.7 x 70.1 x 8.9 mm |
6.61 x 3.02 x 0.32 inches 167.8 x 76.7 x 8.1 mm |
Weight | |
5.36 oz (152.0 g) | 6.81 oz (193.0 g) |
Materials | |
Back: Plastic | Back: Plastic Frame: Plastic |
Biometrics | |
Fingerprint (touch) | |
Features | |
Touch sensitive control keys | |
Keys | |
Left: Volume control; Right: Lock/Unlock key | Right: Volume control, Lock/Unlock key |
Colors | |
Silver | Black |
Display
Size | |
---|---|
5.0-inch | 6.5-inch |
Resolution | |
1280x720px, 16:9 ratio, 294 PPI | 1600x720px, 20:9 ratio, 270 PPI |
Technology | |
TFT | IPS LCD |
Refresh rate | |
60Hz | |
Screen-to-body | |
68.87 % | 79.20 % |
Colors | |
16 777 216 | |
Features | |
Proximity sensor | Ambient light sensor, Proximity sensor |
Hardware
System chip | |
---|---|
Samsung Exynos 7 Quad 7570 (14 nm) | Mediatek Helio P35 MT6765 (12 nm) |
Processor | |
Quad-core 1400 MHz ARM Cortex-A53 |
Octa-core 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53 |
GPU | |
Mali-T720 MP1 | PowerVR GE8320 |
RAM | |
2GB | 3GB (LPDDR4) |
Internal storage | |
16GB | 32GB (eMMC 5.1), available to use: 19.8 GB |
Storage expansion | |
microSDXC up to 400 GB | microSDXC up to 512 GB |
OS | |
Android (9.0 Pie, 8.0 Oreo) | Android (10), Samsung One UI |
Battery
Capacity | |
---|---|
2600 mAh | 4000 mAh |
Type | |
Li - Polymer | |
Charging | |
Fast charging | |
Charge speed | |
Wired: 15.0W |
Camera
Rear | |
---|---|
Single camera | Quad camera |
Main camera | |
8 MP (Autofocus, BSI sensor) Aperture size: F1.9 Focal length: 27 mm Sensor size: 1/4" Pixel size: 1.12 μm |
16 MP (PDAF) Aperture size: F1.8 Sensor size: 1/3.06" Pixel size: 1 μm |
Second camera | |
8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm |
|
Third camera | |
2 MP (Macro) Aperture size: F2.4 |
|
Fourth camera | |
2 MP (Depth information) Aperture size: F2.4 |
|
Flash | |
LED | LED |
Video recording | |
1920x1080 (Full HD) (30 fps) Video calling, Video sharing |
1920x1080 (Full HD) (30 fps) |
Front | |
5 MP, Video capture: 1920x1080 (Full HD) | 13 MP, Video capture: 1920x1080 (Full HD) |
Connectivity & Features
Bluetooth | |
---|---|
4.2 | 5.0 |
WLAN | |
802.11 b,g,n Hotspot, Wi-Fi Direct | 802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot |
USB | |
microUSB, USB 2.0 | Type-C, USB 2.0 |
Hearing aid compatible | |
M3/T3 | M4/T3 |
Location | |
GPS, A-GPS, Glonass | GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning |
Sensors | |
Accelerometer, Gyroscope, Compass | Accelerometer, Gyroscope, Compass |
Other | |
UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync | NFC |
Multimedia
Headphones | |
---|---|
3.5mm jack | 3.5mm jack |
Speakers | |
Earpiece, Loudspeaker | Earpiece, Loudspeaker |
Features | |
Album art cover, Background playback | |
Screen mirroring | |
Wireless screen share | Wireless screen share |
Radio | |
FM | FM |
Cellular
4G (FDD) | |
---|---|
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 14(700 PS) | Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600) |
4G (TDD) | |
Bands 38(2600), 39(1900+), 40(2300), 41(2600+) | |
3G | |
Bands 5(850), 2(1900), 1(2100) | Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) |
Data Speed | |
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, HSUPA, UMTS | LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s |
SIM type | |
Nano SIM | Nano SIM |
HD Voice | |
Yes | Yes |
Phone Features
Notifications | |
---|---|
Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone | |
Other features | |
Voice dialing, Voice commands, Voice recording, TTY/TDD |
Regulatory Approval
FCC approval | |
---|---|
Date approved: Apr 04, 2018 FCC ID value: A3LSMJ337A | Date approved: Apr 17, 2020 FCC ID value: ZCASMA215U |
Measured SAR | |
Head: 1.22 W/kg Body: 1.02 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 1.18 W/kg |
Head: 0.42 W/kg Body: 1.27 W/kg Simultaneous Transmission: 1.27 W/kg Wireless Router: 1.27 W/kg |
Buyers information
MSRP | |
---|---|
$ 250 | |
In The Box | |
Charger and microUSB cable | This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer. |
Availability
Officially announced | |
---|---|
Jun 07, 2018 | Apr 08, 2020 |
Alternative variants
for AT&T Prepaid
Colors | Black |
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for Verizon
4G (FDD) | Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT) |
---|---|
4G (TDD) | Bands 38(2600), 40(2300), 41(2600+) |
3G | Bands 5(850), 8(900), 2(1900), 1(2100) |
for Verizon
System chip | Samsung Exynos 7884A |
---|---|
Processor |
Octa-core 1350 MHz ARM-Cortex A73 and ARM-Cortex A53 |
4G (FDD) | Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c) |
FCC approval |
Date approved: May 07, 2018 FCC ID value: A3LSMJ337V |
Measured SAR |
Head: 1.14 W/kg Body: 0.92 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.17 W/kg |
for Sprint
4G (FDD) | Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600) |
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4G (TDD) | Bands 41(2600+) |
for Sprint and Boost Mobile
System chip | Samsung Exynos 7884A |
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Processor |
Octa-core 1350 MHz ARM-Cortex A73 and ARM-Cortex A53 |
4G (FDD) | Bands 25(1900+), 26(850+) |
4G (TDD) | Bands 41(2600+) |
for T-Mobile
4G (FDD) | Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 66(AWS-3), 71(600) |
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Links
Full specifications | |
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Samsung Galaxy J3 (2018) Specs | Samsung Galaxy A21 Specs |
User Reviews | |
Samsung Galaxy A21 User Reviews |