Phone Comparison - Xiaomi Mi A2 (Mi 6X) vs Samsung Galaxy A51 vs Xiaomi Redmi 9A
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| Price Comparison (India) | - | - | |
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| Manufacturer | Xiaomi | Samsung | Xiaomi |
| Announced | April 2018 | December 2019 | Not announced yet |
| Status | Available - April 2018 | Coming Soon - December 12, 2019 | Rumored |
| Price | Rs. 16,900 ($250.00) [Similarly Priced] | Rs. 23,999 ($0.00) [Similarly Priced] | - |
| Colors | Cherry Pink, Flame Red, Sand Gold, Glacier Blue, Black | Prism Crush White, Black, Pink, Blue | Blue, other colors |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
158.7 x 75.4 x 7.3 mm (6.25 x 2.97 x 0.29 in) |
158.4 x 73.7 x 7.9 mm (6.24 x 2.9 x 0.31 in) |
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| Weight | 168 g (5.93 oz) | 172 g (6.07 oz) | - |
| SIM Type | Hybrid 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 CDMA 800 & TD-SCDMA - China |
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 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - China | LTE (unspecified) | LTE |
| Messaging | SMS, MMS, Push Mail, EMail, IM | ||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor(In-display) |
- Fingerprint Sensor |
| Notification LED | Yes | - | - |
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| OS | Android 8.1 (Oreo); Android One | Android 9.0 (Pie) | Android 10.0 |
| User Interface | - | One UI | MIUI 12 |
| Processor | Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260), Qualcomm SDM660 Snapdragon 660 | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) | , MediaTek Helio G25 |
| GPU | Adreno 512 | Mali-G72 MP3 | Mali-G31 |
| RAM | 6 GB | 8 GB | 3 GB |
| Internal Memory | 128 GB | 128 GB | 32 GB |
| External Memory | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 512 GB (dedicated slot) | microSDXC (dedicated slot) |
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| Type | LTPS IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 | Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.99 inches | 6.5 inches | 6.53 inches |
| Resolution | 1080 x 2160 pixels (403 ppi) | 1080 x 2340 pixels (396 ppi) | 720 x 1600 pixels (269 ppi) |
| Screen-to-Body Ratio | 77.44% | 89.06% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | Dual 12 MP + 20 MP | 48 MP + 12 MP + 5 MP + 5 MP | 13 MP |
| Flash | LED Flash | LED Flash | LED Flash |
| Features | Phase Detection Autofocus, 1.25µm, f/1.8 aperture lens, 2x Optical Zoom, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | 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 |
13 MP, f/1.8, (wide), 1/3.1", 1.12µm, PDAF HDR, Panorama |
| Video | 2160p@30fps, 1080p@30fps, 720p@120fps | 2160p@30fps, 1080p@30fps | 1080p@30fps |
| Front Camera | 20 MP (f/1.8, 1/2.8", 1.0µm), 1080p, Auto-HDR [Similar] |
32 MP, f/2.0, 25mm (wide) HDR 1080p@30fps [Similar] |
5 MP HDR 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE | HSPA, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | 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 | Wi-Fi 802.11 b/g/n, hotspot |
| USB | 2.0, Type-C 1.0 reversible connector | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 128 GB, 6 GB RAM or 64 GB, 4/6 GB RAM | 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 4 GB RAM | 32 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 512 GB (dedicated slot) | microSDXC (dedicated slot) |
| USB OTG | Not Supported | Supported | Supported |
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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 | Non-removable Li-Ion Battery | Non-removable Li-Po Battery Fast battery charging 15W |
Non-removable Li-Po Battery |
| Capacity | 3010 mAh | 4000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 25,250 
