Phone Comparison - Samsung Array M390 vs Samsung Galaxy A51 vs Samsung Galaxy M31
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| Price Comparison (India) | - | ||
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | August 2012 | December 2019 | 2020, February 25 |
| Status | Available - September 2012 | Coming Soon - December 12, 2019 | Available. Released 2020, March 5 |
| Price | - | Rs. 23,999 ($0.00) [Similarly Priced] | Rs. 14,999 ($0.00) [Similarly Priced] |
| Colors | Black, Black/Silver | Prism Crush White, Black, Pink, Blue | Ocean Blue, Space Black, Red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
112 x 54 x 15 mm (4.41 x 2.13 x 0.59 in) |
158.4 x 73.7 x 7.9 mm (6.24 x 2.9 x 0.31 in) |
159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) |
| Weight | 117 g (4.13 oz) | 172 g (6.07 oz) | 191 g (6.74 oz) |
| SIM Type | - | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | CDMA 1900 | 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 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | - | LTE (unspecified) | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Messaging | SMS, MMS | ||
| Build Features | - | - Fingerprint Sensor(In-display) |
- Fingerprint Sensor |
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| OS | - | Android 9.0 (Pie) | Android 10.0 |
| User Interface | - | One UI | One UI 2.0 |
| Processor | 480 MHz, Qualcomm QSC 6155 | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) |
| GPU | - | Mali-G72 MP3 | Mali-G72 MP3 |
| RAM | N/A | 8 GB | 6 GB |
| Internal Memory | 40 MB | 128 GB | 128 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 512 GB (dedicated slot) | microSD, up to 512 GB |
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| Type | TFT | Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen | Full HD+ Infinity-U Super AMOLED Capacitive Touchscreen |
| Colors | TFT | 16M colors | 16M colors |
| Size | 2.4 inches | 6.5 inches | 6.4 inches |
| Resolution | 240 x 320 pixels (167 ppi) | 1080 x 2340 pixels (396 ppi) | 1080 x 2340 pixels (403 ppi) |
| Screen-to-Body Ratio | 29.38% | 89.06% | 83.97% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | Yes |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 2 MP, 1600x1200 pixels | 48 MP + 12 MP + 5 MP + 5 MP | 64 MP + 8 MP + 5 MP + 5 MP |
| Flash | No | LED Flash | LED Flash |
| Features | Shot Modes, Single, Continuous, Mosaic, Panorama, Night Shot; Camcorder | 48 MP, f/1.8, (wide), 1/2", 0.8µm, PDAF 12 MP, f/2.2, 13mm (ultrawide) 5 MP, f/2.2, depth sensor 5 MP, f/2.4, macro camera Panorama, HDR |
64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.2, 25mm (macro), 1/5.0", 1.12µm 5 MP, f/2.2, (depth) HDR, Panorama |
| Video | Yes | 2160p@30fps, 1080p@30fps | 2160p@30fps, 1080p@30fps, gyro-EIS |
| Front Camera | No [Similar] |
32 MP, f/2.0, 25mm (wide) HDR 1080p@30fps [Similar] |
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm HDR 1080p@30fps [Similar] |
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| GPRS | No | Yes | Yes |
| Edge | No | Yes | Yes |
| 3G | - | HSPA, LTE-A | HSPA, LTE-A |
| Bluetooth | Yes, with A2DP | 5.0, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | No | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | Yes | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | 2.0, Type-C 1.0 reversible connector |
| GPS | No | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS |
| Browser | WAP 2.0/xHTML, HTML | Yes | Yes |
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| Phonebook | Yes, Photocall | Practically unlimited entries and fields, Photocall | Practically unlimited entries and fields, Photocall |
| Call Records | Yes | Practically unlimited | Practically unlimited |
| Internal | 40 MB | 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 4 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 512 GB (dedicated slot) | microSD, up to 512 GB |
| USB OTG | - | Supported | Yes |
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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 | Standard battery, Li-Ion | Non-removable Li-Po Battery Fast battery charging 15W |
Non-removable Li-Po Battery Fast battery charging 15W |
| Capacity | 1000 mAh | 4000 mAh | 6000 mAh |
| Stand by | Up to 252 h | - | - |
| Talk Time | Up to 4 h | - | - |
Rs. 25,250 
