Samsung Galaxy J2 Core vs Samsung Galaxy A20 Dual SIM
| Type | Touch | Touch |
| Dimensions | 143.40 x 72.10 x 8.90 mm | 158.40 x 74.70 x 7.80 mm |
| Weight | 154.00 g | 169.00 g |
| Display size | 5.00" | 6.40" |
| Display | Color / PLS TFT 16M colors 540 x 960 px (5.00") 220 ppi | Color / Super AMOLED 16M colors 720 x 1560 px (6.40") 268 ppi |
| Display protection |   | |
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) |  | 3G: 1560 min. (26.0 h) |
| Playback time (max.) | Audio: 75 h (3.1 days) Video: 18 h (0.8 days) | Audio: 82 h (3.4 days) Video: 21 h (0.9 days) |
| Internet browsing time (max.) | WiFi: 18 h (0.8 days) 3G: 14 h (0.6 days) 4G: 17 h (0.7 days) | WiFi: 13 h (0.5 days) 3G: 12 h (0.5 days) 4G: 13 h (0.5 days) |
| Standard battery | Li-Ion 2600 mAhBuy powerbank
| Li-Ion 4000 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Internal memory | 8 GB | 32 GB |
| End-user memory | 4.9 GB | 21.7 GB |
| RAM memory | 1 GB | 3 GB |
| Memory cards |  microSD, microSDHC, microSDXC | microSD, microSDHC, microSDXC up to 512 GBBuy memory card |
| Operating system | Android 8.1 Oreo Go | Android 9.0 Pie |
| Processor | Samsung Exynos 7570 | Samsung Exynos 7884 |
| Processor clock | 1400 MHz | 1600 MHz |
| GPU | ARM Mali-T720 | - |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | SingleSIM(microSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Announced | 3Q 2018 | 1Q 2019 |
| Other names | SM-J260A; SM-J260AZ; SM-J260F; SM-J260G; SM-J260M; SM-J260Y | SM-A205F/DS |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 850, 800 | FDD LTE: 2600, 2100, 1800, 900, 850, 800 TDD LTE: 2600, 2500, 2300 |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | Standard | |
| Photo matrix | 8 Mpx | 13 Mpx |
| Resolution | 3264x2448 px | |
| Optical zoom | | |
| Digital zoom | 4x | |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video resolution | 1920x1080 px | 1920x1080 px |
| Video formats | H.263, MPEG4 - 30 fps | H.263, H.264, H.264 - 30 fps |
| Additional | f/2.2 | f/1.9 |
| Second camera | | |
| Photo matrix | nd | 5 Mpx |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, H.264 - 30 fps |
| Additional | nd | f/2.2 |
CAMERAS - FRONT
| First camera | | |
| Camera type | Portrait | |
| Photo matrix | 5 Mpx | 8 Mpx |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video formats | H.263, MPEG4 - 30 fps | H.263, H.264, H.264 - 30 fps |
| Additional | FF, f/2.2 | f/2.0 |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | - | |
| LTE UP | 51.00 Mbit/s | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.2 | v5.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 b/g/n | v802.11 b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| QZSS | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | XT9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | 3GA, AAC, AMR, FLAC, IMY, M4A, MID, MIDI, OGA, OGG, WAV, WMA, XMF | AAC, AAC+, AMR, WAV, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | ART | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |