Phone Comparison - Samsung Galaxy Note 4 vs Samsung Galaxy A20 vs Samsung Galaxy A21s
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | September 2014 | March 2019 | Expected Announcement - May 2020 |
| Status | Available - October 2014 | Coming Soon - April 2019 | Rumored |
| Colors | Frosted white, Charcoal black, Bronze Gold, Blossom Pink | Blue, Black | Black, White, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
153.5 x 78.6 x 8.5 mm (6.04 x 3.09 x 0.33 in) |
- |
8.9 mm thickness (0.35 in thickness) |
| Weight | 176 g (6.21 oz) | - | 191 g (6.74 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 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE 800 / 850 / 900 / 1800 / 2100 / 2600 | LTE | LTE |
| Messaging | SMS, MMS, EMail, IM | ||
| Build Features | - | - Fingerprint Sensor |
- Fingerprint Sensor |
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| OS | Android OS, v4.4.4 (KitKat) | Android 9.0 (Pie) | Android 10.0 |
| Processor | Quad-core 2.7 GHz Krait 450 (SM-N910S) Quad-core 1.3 GHz Cortex-A53 & 1.9GHz quad-core Cortex-A57 (SM-N910C), Qualcomm Snapdragon 805 (SM-N910S) Exynos 5433 (SM-N910C) |
Octa-core (2x1.6 GHz & 6x1.35 GHz), Exynos 7884 Octa | Octa-core 2.0 GHz, Exynos 850 |
| GPU | Adreno 420 (SM-N910S) Mali-T760 (SM-N910C) |
- | - |
| RAM | 3 GB | 3 GB | 3 GB |
| Internal Memory | 32 GB | 32 GB | 64 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 512 GB (dedicated slot) | microSDXC |
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| Type | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 3 | Super AMOLED Capacitive Touchscreen | PLS TFT Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.7 inches | 6.4 inches | 6.55 inches |
| Resolution | 1440 x 2560 pixels (515 ppi) | 720 x 1560 pixels (268 ppi) | 720 x 1600 pixels (268 ppi) |
| Screen-to-Body Ratio | 74.32% | - | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | FM radio | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 16 MP, 3456 x 4608 pixels | 13 MP + 5 MP | 48 MP + 8 MP + 2 MP |
| Flash | LED Flash | LED Flash | LED Flash |
| Features | Auto focus, Smart OIS, Dual Shot, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, Panorama, HDR | 13 MP, f/1.9, 28mm (wide), AF 5 MP, f/2.2, depth sensor Panorama, HDR |
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 |
| Video | 2160p@30fps, 1080p@60fps, optical stabilization | 1080p@30fps | 1080p@30fps |
| Front Camera | 3.7 MP, 1080p@30fps [Similar] | 8 MP, f/2.0 [Similar] |
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42 Mbps; HSUPA; LTE, Cat4 (N910C), Cat6 (N910S), 50 Mbps UL, 300 Mbps (N910S), 150 Mbps (N910C) DL | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | v4.1, A2DP, EDR, LE | 4.2, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi 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 (MHL 2), USB Host | microUSB 2.0 | Yes |
| GPS | Yes, with A-GPS, GLONASS, Baidu | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 32 GB, 3 GB RAM | 32 GB, 3 GB RAM | 64 GB, 3 GB RAM or 32 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 512 GB (dedicated slot) | microSDXC |
| 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 | Li-Ion Battery | Non-removable Li-Po Battery | Non-removable Li-Po Battery Battery Charging 10W |
| Capacity | 3220 mAh | 4000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
