Phone Comparison - Samsung Galaxy A21s vs Xiaomi Redmi Note 10 Pro (China) vs Samsung Galaxy A04
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| Manufacturer | Samsung | Xiaomi | Samsung |
| Announced | Expected Announcement - May 2020 | May 2021 | August 2022 |
| Status | Rumored | Coming Soon - June 2021 | Available - December 2022 |
| Colors | Black, White, Blue | Gray, Blue/Green, White | Black, Green, White, Copper |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
8.9 mm thickness (0.35 in thickness) |
163.3 x 75.9 x 8.9 mm (6.43 x 2.99 x 0.35 in) |
164.4 x 76.3 x 9.1 mm (6.47 x 3 x 0.36 in) |
| Weight | 191 g (6.74 oz) | 193 g (6.81 oz) | 192 g (6.77 oz) |
| SIM Type | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM), 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 CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE | 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 | LTE |
| 5G Network | - | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 | - |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor (side-mounted) IP53, dust and splash protection |
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| OS | Android 10.0 | Android 11 | Android 12 |
| User Interface | One UI 2.0 | MIUI 12.5 | One UI Core 4.1 |
| Processor | Octa-core 2.0 GHz, Exynos 850 | Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55), MediaTek MT6891Z Dimensity 1100 5G (6 nm) | Octa-core, MediaTek Helio P35 |
| GPU | - | Mali-G77 MC9 | IMG PowerVR GE8320 |
| RAM | 3 GB | 8 GB | 32GB 4GB |
| Internal Memory | 64 GB | 256 GB | N/A |
| External Memory | microSDXC | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
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| Type | PLS TFT Capacitive Touchscreen | FHD+ IPS LCD Screen 120Hz Refresh Rate HDR10 450 nits (typ) Corning Gorilla Glass Victus |
HD+ PLS LCD Screen |
| Colors | 16M colors | 16M Colour | 16M Colors |
| Size | 6.55 inches | 6.6 inches | 6.5 inches |
| Resolution | 720 x 1600 pixels (268 ppi) | 1080 x 2400 pixels (399 ppi) | 720 x 1600 pixels (270 ppi) |
| Screen-to-Body Ratio | - | 84.75% | 81.28% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | No | Unspecified |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 8 MP + 2 MP | 64 MP + 8 MP + 2 MP | 50 MP + 2 MP |
| Flash | LED Flash | Dual-LED Dual-tone Flash | LED Flash |
| Features | 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.4, (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) Panorama, HDR |
64 MP, f/1.8, 26mm (wide), 1/1.97", 0.7µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) HDR, Panorama |
50 MP, f/1.8, (wide), AF 2 MP, f/2.4, (depth) |
| Video | 1080p@30fps | 4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR | 1080p@30fps |
| Front Camera |
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps [Similar] |
16 MP, f/2.5, (wide), 1/3.06", 1.0µm Panorama, HDR 1080p@30fps, 720p@120fps, HDR [Similar] |
5 MP, f/2.2 [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | 5.0, A2DP, LE | 5.2, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | Yes | USB Type-C 2.0 | microUSB 2.0 |
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS, QZSS | Yes, with A-GPS |
| Browser | Yes | Yes | Yes |
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| Internal | 64 GB, 3 GB RAM or 32 GB, 3 GB RAM | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM UFS 3.1 | 32GB 4GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 8GB RAM |
| Expandable Storage | microSDXC | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| USB OTG | Supported | Supported | Not 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 Battery Charging 10W |
Non-removable Li-Po Battery Fast charging 67W, 100% in 42 min (advertised) |
Non-removable Li-Po Battery |
| Capacity | 5000 mAh | 5000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
