Samsung Galaxy J7 Star vs Samsung Galaxy J7 Refine
| Type | Touch | Touch |
| Dimensions | 153.40 x 76.20 x 7.60 mm | 153.40 x 76.20 x 7.60 mm |
| Weight | 181.00 g | 181.00 g |
| Display size | 5.50" | 5.50" |
| Display | Color / IPS TFT 16M colors 720 x 1280 px (5.50") 267 ppi | Color / IPS TFT 16M colors 720 x 1280 px (5.50") 267 ppi |
| Display protection |   | |
| Additional display | | |
| Protection of the secondary display | | |
| Playback time (max.) | nd | Video: 20 h (0.8 days) |
| Standard battery | Li-Ion 3300 mAhBuy powerbank
| Li-Ion 3300 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Internal memory | 32 GB | 32 GB |
| RAM memory | 2 GB | 2 GB |
| Memory cards |  microSD, microSDHC, microSDXC up to 400 GBBuy memory card | microSD, microSDHC, microSDXC up to 400 GBBuy memory card |
| Operating system | Android 8.0 Oreo | Android 8.0 Oreo |
| Processor | Samsung Exynos 7884 | Samsung Exynos 7884 |
| Processor clock | 1600 MHz | 1600 MHz |
| GPU | - | - |
| Touchscreen | | |
| DualSIM | | |
| Announced | 3Q 2018 | 3Q 2018 |
| Other names | - | SM-J737P |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 1700 1900 2100 | 850 1700 1900 2100 |
| LTE standard | FDD LTE: 1900, 1700, 850, 700 | FDD LTE: 1900, 1700, 850, 700 |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 13 Mpx | 13 Mpx |
| Optical zoom | | |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video resolution | 1920x1080 px | 1920x1080 px |
| Video formats | H.263, H.264, MPEG4 - 30 fps | H.263, H.264, MPEG4 - 30 fps |
| Additional | AF, f/1.7 | AF, f/1.7 |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | 13 Mpx | 13 Mpx |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video formats | H.263, H.264, MPEG4 - 30 fps | H.263, H.264, MPEG4 - 30 fps |
| Additional | FF, f/1.9 | FF, f/1.9 |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | | v4.2 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n/ac | v802.11 a/b/g/n/ac |
| WiFi frequencies | 2,4 GHz; 5 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | T9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | z RDS | z RDS |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | AAC, AAC+, AMR, WAV, eAAC+ | 3GA, AAC, AMR, AWB, FLAC, IMY, M4A, MID, MXMF, OGA, OGG, OTA, RTTTL, RTX, WAV, WMA, XMF |
| 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 | | |