Phone Comparison - Samsung Galaxy S9+ vs Samsung Galaxy A21s vs Samsung Galaxy A02
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | February 2018 | Expected Announcement - May 2020 | 2021, January 27 |
| Status | Coming Soon, March 2018 | Rumored | Available. Released 2021, January 27 |
| Price | Rs. 57,999 ($890.00) [Similarly Priced] | - | - |
| Colors | Various | Black, White, Blue | Black, Blue, Red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
158.1 x 73.8 x 8.5 mm (6.22 x 2.91 x 0.33 in) |
8.9 mm thickness (0.35 in thickness) |
164 x 75.9 x 9.1 mm (6.46 x 2.99 x 0.36 in) |
| Weight | 189 g (6.67 oz) | 191 g (6.74 oz) | 206 g (7.27 oz) |
| SIM Type | Single SIM (Nano-SIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) | 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 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | 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 / 1900 / 2100 | HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE | LTE | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900) 20(800), 28(700), 32(1500), 38(2600), 40(2300), 41(2500) |
| Messaging | SMS, MMS, EMail, IM | ||
| Build Features | - Fingerprint Sensor - Samsung Pay (Visa, MasterCard certified) - IP68 certified - dust/water proof over 1.5 meter and 30 minutes |
- Fingerprint Sensor |
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| Notification LED | Yes | - | - |
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| OS | Android 8.0 (Oreo) | Android 10.0 | Android 10 |
| User Interface | - | One UI 2.0 | One UI 2.5 |
| Processor | Octa-core (4x2.8 GHz Mongoose M3 & 4x1.7 GHz Cortex-A55) - EMEA Octa-core (4x2.7 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver) - USA & China, Exynos 9810 Octa - EMEA Qualcomm Snapdragon 845 |
Octa-core 2.0 GHz, Exynos 850 | Octa-core 1.8 GHz Cortex-A53, Qualcomm SM4250 Snapdragon 450 (11 nm) |
| GPU | Mali-G72 MP18 - EMEA Adreno 630 - USA & China |
- | Adreno 506 |
| RAM | 6 GB | 3 GB | 2 GB |
| Internal Memory | 64 GB | 64 GB | 32 GB |
| External Memory | microSD, up to 256 GB (uses SIM 2 slot) - dual SIM model only | microSDXC | microSDXC (dedicated slot) |
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| Type | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 5 | PLS TFT Capacitive Touchscreen | PLS TFT Display |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 6.2 inches | 6.55 inches | 6.5 inches |
| Resolution | 1440 x 2960 pixels (531 ppi) | 720 x 1600 pixels (268 ppi) | 720 x 1520 pixels (259 ppi) |
| Screen-to-Body Ratio | 83.59% | - | 84.56% |
| 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 | Dual12 MP + 12 MP | 48 MP + 8 MP + 2 MP | 13 MP + 2 MP |
| Flash | LED Flash | LED Flash | LED Flash |
| Features | Phase Detection Autofocus, f/1.6 + f/2.4, 26mm, 1/2.55", 1.4 µm, 52mm, 1/3.6", 1 µm, Dual Pixel AF, OIS, 2x Optical Zoom, Geo-tagging, Simultaneous 4K Video And 9MP Image Recording, Touch Focus, Face/smile Detection, Auto HDR, Panorama | 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 |
13 MP, f/2.2, 28mm (wide), 1/3.1", 1.12µm, AF 2 MP, f/2.4, (depth) |
| Video | 2160p@30fps, 1080p@60fps, HDR, dual-video rec. | 1080p@30fps | 1080p@30fps |
| Front Camera | 8 MP, f/1.6, autofocus, 1440p, dual video call, Auto HDR [Similar] |
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps [Similar] |
8 MP, f/2.2, 1/4", 1.12µm [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A (4CA) Cat16 1024/150 Mbps | HSPA 42.2/5.76 Mbps, LTE-A | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | 5.0, A2DP, LE, aptX | 5.0, A2DP, LE | 4.2, A2DP, LE |
| 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 | 3.1, Type-C 1.0 reversible connector | Yes | microUSB 2.0 |
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 64 GB, 6 GB RAM | 64 GB, 3 GB RAM or 32 GB, 3 GB RAM | 32 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 256 GB (uses SIM 2 slot) - dual SIM model only | microSDXC | microSDXC (dedicated slot) |
| USB OTG | Not 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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| Barometer Sensor | |
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| Heart-rate Sensor | |
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| NFC | |
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| Type | Non-removable Li-Ion battery | Non-removable Li-Po Battery Battery Charging 10W |
Non-removable Li-Po Battery Battery Charging 10W |
| Capacity | 3500 mAh | 5000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
