Phone Comparison - Xiaomi Mi 9 vs Google Pixel 3a vs Samsung Galaxy A52s 5G
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| Manufacturer | Xiaomi | Samsung | |
| Announced | February 2019 | 2019, May | August 2021 |
| Status | Coming Soon - March 2019 | Available. Released 2019, May | Coming Soon - September 2020 |
| Colors | Lavender Violet, Ocean Blue, Piano Black | Clearly White, Just Black, Not Pink | Awesome Black, Awesome White, Awesome Purple, Awesome Mint |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
157.5 x 74.7 x 7.6 mm (6.2 x 2.94 x 0.3 in) |
151.3 x 70.1 x 8.2 mm (5.96 x 2.76 x 0.32 in) |
159.9 x 75.1 x 8.4 mm (6.3 x 2.96 x 0.33 in) |
| Weight | 173 g (6.1 oz) | 147 g (5.19 oz) | 189 g (6.67 oz) |
| SIM Type | Dual SIM (Nano-SIM, dual stand-by) | Nano-SIM | Single SIM (Nano-SIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA |
GSM 850 / 900 / 1800 / 1900 CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 28(700), 38(2600), 39(1900), 40(2300) | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 42(3500), 46, 66(1700/2100), 71(600) | 2, 4, 5, 12, 17, 26, 40, 41, 66 |
| 5G Network | - | - | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA/Sub6 |
| Messaging | |||
| Build Features | Fingerprint Sensor (In-display) |
- Fingerprint Sensor - IP68 dust/water resistant (up to 1.5m for 30 mins) |
- Fingerprint Sensor (under display, optical) IP67 dust/water resistant (up to 1m for 30 mins) |
| Notification LED | - | Yes | - |
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| OS | Android 9.0 (Pie); MIUI 10 | Android 9.0 (Pie) | Android 11 |
| Processor | Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485), Qualcomm SDM855 Snapdragon 855 (7 nm) | Octa-Core (2 x 2GHz Kryo 360 + 6 x 1.7GHz Kryo 360), Qualcomm SDM670 Snapdragon 670 | Octa-core (1x2.4 GHz Kryo 670 Prime & 3x2.2 GHz Kryo 670 Gold & 4x1.9 GHz Kryo 670 Silver), Qualcomm Snapdragon 778G 5G (6 nm) |
| GPU | Adreno 640 | Adreno 615 | Adreno 642L |
| RAM | 6/8 GB | 4 GB | 8 GB |
| Internal Memory | 64/128 GB | 32/64 GB | 256 GB |
| External Memory | No | No | microSDXC (uses shared SIM slot) |
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| Type | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 6 | P-OLED Capacitive Touchscreen, Corning Gorilla Glass 5 | FHD+ Super AMOLED Screen 120Hz Refresh Rate 800 nits (HBM) Corning Gorilla Glass 5 |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 6.39 inches | 5.6 inches | 6.5 inches |
| Resolution | 1080 x 2340 (403 ppi) | 1080 x 2220 pixels (441 ppi) | 1080 x 2400 pixels (405 ppi) |
| Screen-to-Body Ratio | 85.33% | 74.99% | 84.90% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | Unspecified |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 16 MP + 12 MP | 12.2 MP | 64 MP + 12 MP + 5 MP + 5 MP |
| Flash | Dual-LED Flash | Dual-LED Flash | LED Flash |
| Features | 48 MP, f/1.8, 1/2", 0.8µm, Laser/PDAF 16 MP, f/2.2, 13mm (ultrawide), 1/3.0", 1.0µm, Laser/PDAF 12 MP, f/2.2, 54mm (telephoto), 1/3.6", 1.0µm, Laser/PDAF, 2x optical zoom HDR, panorama |
12.2 MP, f/1.8, 28mm (wide), 1/2.55", 1.4µm, OIS, dual pixel PDAF Auto-HDR, Panorama |
64 MP, f/1.8, 26mm (wide), 1/1.7", 0.8µm, PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide), 1.12µm 5 MP, f/2.4, (macro) 5 MP, f/2.4, (depth) panorama, HDR |
| Video | 2160p@30/60fps, 1080p@30/120/240fps, 1080p@960fps | 2160p@30fps, 1080p@30/60/120fps, 720p@240fps, 1080p@30fps (gyro-EIS) | 4K@30fps, 1080p@30fps |
| Front Camera | 20 MP, f/2.0, 0.9µm, HDR, 1080p@30fps [Similar] |
8 MP, f/1.8, 28mm PDAF No AF, Auto-HDR, 1080p@30fps [Similar] |
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm HDR 4K@30fps, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A (5CA) Cat16 1024/75 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (CA) Cat18 1200/150 Mbps, 5G |
| Bluetooth | 5.0, A2DP, LE, aptX HD | 5.0, A2DP, LE, aptX HD | 5.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | 2.0, Type-C 1.0 reversible connector | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | Yes | Yes | |
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| Internal | 64/128 GB, 6/8 GB RAM | 32/64 GB, 4 GB RAM | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM |
| Expandable Storage | No | No | microSDXC (uses shared SIM slot) |
| USB OTG | 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-Po Battery | Non-removable Li-Ion Battery Fast Battery Charging 18W |
Non-removable Li-Po Battery Fast battery charging 25W |
| Capacity | 3300 mAh | 3000 mAh | 4500 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
