Phone Comparison - Samsung Galaxy Express 2 vs Samsung Galaxy J1 vs Samsung Galaxy J7 (2017)
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | October 2013 | January 2015 | June 2017 |
| Status | Available - October 2013 | Available - January 2015 | Available - July 2017 |
| Price | - | Rs. 5,850 ($86.03) [Similarly Priced] | Rs. 24,500 ($330.00) [Similarly Priced] |
| Colors | Blue | Blue, Black, White | Gold, Black, Pink, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
132.4 x 65.7 x 9.8 mm (5.21 x 2.59 x 0.39 in) |
129 x 68.2 x 8.9 mm (5.08 x 2.69 x 0.35 in) |
152.4 x 74.7 x 7.9 mm (6 x 2.94 x 0.31 in) |
| Weight | 134.2 g (4.73.0.07 oz) | 122 g (4.3 oz) | - |
| SIM Type | - | - | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 2100 | HSDPA 900 / 2100 (single or dual SIM) HSDPA 850 / 2100 (dual SIM) |
HSDPA 850 / 900 / 1900 / 2100 - J710F, J710H HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - J710M |
| 4G Network | LTE 800 / 900 / 1800 / 2600 | - | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 40(2300) - J710F |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.4.x (KitKat) | Android OS, v7.1 (Nougat) |
| Processor | Dual-core 1.7 GHz | Dual-core 1.2 GHz Cortex-A7 | Octa-core 1.6 GHz Cortex-A53, Exynos 7870 |
| GPU | - | - | Mali-T830 MP2 |
| RAM | 1.5 GB | 512 MB | 3 GB |
| Internal Memory | 8 GB | 4 GB | 16 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 128 GB | microSD, up to 256 GB |
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| Type | Capacitive touchscreen | TFT Capacitive Touchscreen | Super AMOLED capacitive touchscreen, 2.5D Gorilla Glass |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.5 inches | 4.3 inches | 5.5 inches |
| Resolution | 540 x 960 pixels (245 ppi) | 480 x 800 pixels (217 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 64.05% | 59.80% | 73.08% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS, FM recording | - | FM radio, RDS, recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 5 MP, 2592 х 1944 pixels | 13 MP |
| Flash | LED flash | LED Flash | LED Flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face Detection | Autofocus, f/1.7, 28mm, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | Yes, 720p@30fps, stereo sound rec. | 720p@30fps | 1080p@30fps |
| Front Camera | Yes [Similar] | 2 MP [Similar] | 13 MP, f/1.9 [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21.1 Mbps; HSUPA, 5.76 Mbps, LTE | HSPA | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | Yes, v4.0 with A2DP, EDR | v4.0, A2DP | v4.1, A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| USB | Yes, microUSB v2.0 (MHL) | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML | HTML5 |
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| Internal | 8 GB, 1.5 GB RAM | 4 GB, 512 MB RAM | 16 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 128 GB | microSD, up to 256 GB |
| USB OTG | - | - | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Li-Ion Battery | Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 2100 mAh | 1850 mAh | 3600 mAh |
| Stand by | - | - | - |
| Talk Time | - | Up to 10 h (3G) | - |
