Phone Comparison - Samsung Galaxy S8 vs Samsung Galaxy J7 Duo (2018) vs Samsung Galaxy M55
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| Price Comparison (India) | - | ||
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | March 2017 | April 2018 | March 2024 |
| Status | Available - April 2017 | Available - April 2018 | Available - March 2024 |
| Price | Rs. 57,900 ($720.00) [Similarly Priced] | Rs. 16,990 ($260.00) [Similarly Priced] | Rs. 26,999 ($0.00) [Similarly Priced] |
| Colors | Black, White, Gold, Silver, Pink Gold | Black, Gold | Dark Blue, Light Green |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
148.9 x 68.1 x 8 mm (5.86 x 2.68 x 0.31 in) |
153.5 x 77.2 x 8.1 mm (6.04 x 3.04 x 0.32 in) |
163.9 x 76.5 x 7.8 mm (6.45 x 3.01 x 0.31 in) |
| Weight | 155 g (5.47 oz) | - | 180 g (6.35 oz) |
| SIM Type | Dual-SIM | Dual-SIM | Hybrid 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 (optional) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | HSDPA | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 38, 40, 41, 66 |
| 5G Network | - | - | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 |
| SAR EU |
- W/kg (head) - W/kg (body) |
- W/kg (head) - W/kg (body) |
0.96 W/kg (head) 0.98 W/kg (body) |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | |
| Build Features | - | - 2.5D Curved Glass - Fingerprint Sensor |
- Fingerprint Sensor (under display, optical) |
| Notification LED | Yes | Yes | - |
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| OS | Android OS, v7.0 (Nougat) | Android OS, v8.0 (Oreo) | Android 14 |
| Processor | Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo) Octa-core (4x2.3 GHz & 4x1.7 GHz), Qualcomm MSM8998 Snapdragon 835 Exynos 8895 Octa |
2.39 GHz Octa-core, Exynos 7870 | Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510), Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm) |
| GPU | Adreno 540 | Mali-T830 MP2 | Adreno 644 |
| RAM | 4 GB | 4 GB | 8 GB |
| Internal Memory | 64 GB | 32 GB | 256 GB |
| External Memory | microSD, up to 256 GB (dedicated slot) | microSD, up to 256 GB | microSDXC (uses shared SIM slot) |
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| Type | Super AMOLED capacitive touchscreen, Gorilla Glass 5 | Super AMOLED capacitive touchscreen | FHD+ Super AMOLED+ Screen 120Hz Refresh Rate, 1000 Nits (HBM) |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.8 inches | 5.5 inches | 6.7 inches |
| Resolution | 1440 x 2960 pixels (568 ppi) | 720 x 1280 pixels (267 ppi) | 1080 x 2400 pixels (393 ppi) |
| Screen-to-Body Ratio | 84.06% | 70.38% | 86.35% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio, recording | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 12 MP | Dual 13 MP + 5 MP | 50 MP + 8 MP + 2 MP |
| Flash | Dual-LED (Dual Tone) | LED flash | LED Flash |
| Features | Phase Detection Autofocus, OIS, f/1.7 aperture, Geo-tagging, Simultaneous 4K Video And 9MP Image Recording, Touch Focus, Face/smile Detection, Auto HDR, Panorama | Auto focus, Live Focus, f/1.9 aperture main, f/1.9 aperture secondary, Geo-tagging, Touch Focus, Face Detection, Panorama | 50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 123˚ (ultrawide) 2 MP, f/2.4, (macro) Panorama, HDR |
| Video | 2160p@60fps, 1080p@120fps, HDR, dual-video rec. | 1080p@30fps | 4K@30fps, 1080p@30/60fps, gyro-EIS |
| Front Camera | 8 MP, AF [Similar] | 8 MP, f/1.9 [Similar] |
50 MP, f/2.4, (wide) 4K@30fps, 1080p@30/60fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE, VoLTE | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, VoLTE | HSPA, LTE, 5G |
| Bluetooth | v4.2, A2DP, LE, aptX | v4.2, A2DP, EDR, LE, ANT+ | 5.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| USB | v3.1, Type-C 1.0 reversible connector | microUSB 2.0 | USB Type-C 2.0, OTG |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS | GPS, GALILEO, GLONASS, BDS, QZSS |
| Browser | HTML5 | HTML5 | Yes |
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| Internal | 64 GB, 4 GB RAM | 32 GB, 4 GB RAM | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM |
| Expandable Storage | microSD, up to 256 GB (dedicated slot) | microSD, up to 256 GB | 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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| 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-Ion Battery | Non-removable Li-Po Battery Fast battery Charging 45W |
| Capacity | 3000 mAh | 3000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 57,900 
Rs. 26,999 
