Phone Comparison - Samsung Galaxy S6 (CDMA) vs Samsung Galaxy A21 vs Samsung Galaxy A11
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | March 2015 | 2020, April 8 | March 2020 |
| Status | Available - April 2015 | Coming soon. Exp. release 2020, April | Coming Soon - April 2020 |
| Price | Rs. 29,999 ($441.16) [Similarly Priced] | - | - |
| Colors | White Pearl, Black Sapphire, Gold Platinum | Various | Black, White, Blue, Red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
143.5 x 70.6 x 6.9 mm (5.65 x 2.78 x 0.27 in) |
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161.4 x 76.3 x 8 mm (6.35 x 3 x 0.31 in) |
| Weight | 140 g (4.94 oz) | - | 177 g (6.24 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) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - G920V, G920P CDMA2000 1xEV-DO - G920V, G920P, G920R |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 - G920V | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 13(700) - G920V | LTE | LTE (unspecified) |
| Messaging | SMS, MMS, EMail, IM | ||
| Build Features | - Corning Gorilla Glass 4 back panel - Fingerprint sensor (PayPal certified) - Samsung Pay (Visa, MasterCard certified) |
- Fingerprint Sensor Glass front, plastic back, plastic frame |
- Fingerprint Sensor |
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| OS | Android OS, v5.0.2 (Lollipop) | Android 10.0 | Android 10.0 |
| User Interface | - | One UI 2.0 | One UI 2.0 |
| Processor | Quad-core 1.5 GHz Cortex-A53 & Quad-core 2.1 GHz Cortex-A57, Exynos 7420 | Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765 Helio P35 (12nm) | Octa-core 1.8 GHz |
| GPU | Mali-T760MP8 | PowerVR GE8320 | - |
| RAM | 3 GB | 3 GB | 3 GB |
| Internal Memory | 32/64/128 GB | 64 GB | 32 GB |
| External Memory | No | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
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| Type | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 4 | HD+ Super AMOLED Capacitive Touchscreen | TFT Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.1 inches | 6.5 inches | 6.4 inches |
| Resolution | 1440 x 2560 pixels (576 ppi) | 720 x 1600 pixels (270 ppi) | 720 x 1560 pixels (268 ppi) |
| Screen-to-Body Ratio | 70.76% | - | 81.93% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 16 MP, 2988 x 5312 pixels | 16 MP + 8 MP + 2 MP + 2 MP | 13 MP + 5 MP + 2 MP |
| Flash | LED Flash | No | LED Flash |
| Features | OIS, Auto-focus, Geo-tagging, Touch Focus, Face Detection, Auto HDR, Panorama | 16 MP, f/1.9, 28mm (wide), AF 8 MP, f/2.2, 12mm (ultrawide) 2 MP, (macro) 2 MP, (depth) panorama, HDR |
13 MP, f/1.8, 28mm (wide), AF 5 MP, f/2.2 (ultrawide) 2 MP, f/2.4, (depth) Panorama, HDR |
| Video | 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec. | 1080p@30fps | 1080p@30fps |
| Front Camera | 5 MP, 1440p@30fps, dual video call, Auto [Similar] |
13 MP HDR 1080p@30fps [Similar] |
8 MP, f/2.0 HDR 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps, EV-DO Rev.A 3.1 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.1, A2DP, LE, apt-X | 5.0, A2DP, LE | Yes |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0, USB Host | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | Type-C 1.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 32/64/128 GB, 3 GB RAM | 64 GB, 3 GB RAM eMMC 5.1 | 32 GB, 3 GB RAM or 32 GB, 2 GB RAM |
| Expandable Storage | No | microSDXC (dedicated slot) | microSDXC (dedicated 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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| 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 Fast battery charging 15W |
| Capacity | 2550 mAh | 4000 mAh | 4000 mAh |
| Stand by | - | - | - |
| Talk Time | Up to 23 h (3G) | - | - |
