Phone Comparison - Samsung Galaxy J7 (2018) vs Samsung Galaxy A40 vs Samsung Galaxy M30s
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | June 2018 | March 2019 | August 2019 |
| Status | Coming Soon - July 2018 | Coming Soon - April 2019 | Coming Soon - September 18, 2019 |
| Price | Rs. 14,999 ($225.00) [Similarly Priced] | - | Rs. 13,999 ($0.00) [Similarly Priced] |
| Colors | Black | Black, White, Blue, Coral | Black, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - |
144.3 x 69.1 x 7.9 mm (5.68 x 2.72 x 0.31 in) |
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| Weight | - | - | 188 g (6.63 oz) |
| SIM Type | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) | LTE |
| Messaging | SMS, MMS, Push Mail, EMail, IM | ||
| Build Features | - | - Fingerprint Sensor |
- Fingerprint Sensor |
| Notification LED | No | - | - |
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| OS | Android 8.0 (Oreo) | Android 9.0 (Pie) | Android 9.0 (Pie) |
| User Interface | Samsung Experience | - | One UI |
| Processor | 1.4 GHz Quad-core, Exynos 7570 | Octa-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53), Exynos 7885 Octa (14 nm) | Octa-Core (Quad 2.3GHz + Quad 1.7GHz), Exynos 9610 (10nm) |
| GPU | Mali-T720 MP1 | Mali-G71 | Mali-G72 |
| RAM | 2/3 GB | 4 GB | 6 GB |
| Internal Memory | 16/32 GB | 64 GB | 128 GB |
| External Memory | microSD, up to 256 GB | microSD, up to 512 GB (dedicated slot) | microSD, up to 512 GB |
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| Type | Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen | Full HD+ Infinity-U Super AMOLED Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 5.9 inches | 6.4 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 1080 x 2280 pixels (428 ppi) | 1080 x 2340 pixels (403 ppi) |
| Screen-to-Body Ratio | - | 86.97% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | Yes |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 3264 x 2448 pixels | 16 MP + 5 MP | 48 MP + 8 MP + 5 MP |
| Flash | LED Flash | LED Flash | LED Flash |
| Features | Autofocus, f/1.7, Geo-tagging, Touch Focus, Face Detection, HDR | 16 MP, f/2.0, PDAF 5 MP, f/2.2, 12mm, (ultrawide) Panorama, HDR |
48 MP, f/2.0, PDAF 8 MP, 12mm (ultrawide) 5 MP, f/2.2, depth sensor HDR, Panorama |
| Video | 1080p@30fps | 2160p@30fps, 1080p@30fps | 2160p@30fps, 1080p@30fps |
| Front Camera | 13 MP, f/1.9 [Similar] | 25 MP, 1080p@30fps [Similar] | 16 MP, HDR, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, 4G, LTE, VoLTE | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat12 600/150 Mbps | HSPA, LTE-A |
| Bluetooth | Yes | 4.2, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Yes | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB 2.0, USB On-The-Go | Type-C 1.0 reversible connector | 2.0, Type-C 1.0 reversible connector |
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 16/32 GB, 2/3 GB RAM | 64 GB, 4 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 256 GB | microSD, up to 512 GB (dedicated slot) | microSD, up to 512 GB |
| USB OTG | Supported | Supported | Yes |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Magnetic-Field Sensor (Compass) | |
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| Gyroscope Sensor | |
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| NFC | |
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| Type | Li-Ion battery | Non-removable Li-Po Battery | Non-removable Li-Po Battery Fast battery charging 15W |
| Capacity | 3000 mAh | 3100 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
