Phone Comparison - HTC One M8 vs Samsung Galaxy A20 vs Samsung Galaxy A40
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| Manufacturer | HTC | Samsung | Samsung |
| Announced | March 2014 | March 2019 | March 2019 |
| Status | Available - March 2014 | Coming Soon - April 2019 | Coming Soon - April 2019 |
| Colors | Glacial Silver, Gunmetal Gray, Amber Gold | Blue, Black | Black, White, Blue, Coral |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
146.4 x 70.6 x 9.4 mm (5.76 x 2.78 x 0.37 in) |
- |
144.3 x 69.1 x 7.9 mm (5.68 x 2.72 x 0.31 in) |
| Weight | 160 g (5.64 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 / 1900 / 2100 HSDPA 850 / 1700 / 1900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE 800 / 900 / 1800 / 2600 LTE 700 / 1700 / 2100 LTE 700 / 900 / 1800 / 2100 / 2600 LTE 700 / 850 / 1700 / 1800 / 1900 / 2100 / 2600 |
LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Messaging | SMS, MMS, Push Mail, EMail | ||
| Build Features | Corning Gorilla Glass 3 | - Fingerprint Sensor |
- Fingerprint Sensor |
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| OS | Android OS, v4.4.2 (KitKat) | Android 9.0 (Pie) | Android 9.0 (Pie) |
| Processor | Quad-core 2.3 GHz Krait 400, Qualcomm MSM8974AB Snapdragon 801 | Octa-core (2x1.6 GHz & 6x1.35 GHz), Exynos 7884 Octa | Octa-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53), Exynos 7885 Octa (14 nm) |
| GPU | Adreno 330 | - | Mali-G71 |
| RAM | 2 GB | 3 GB | 4 GB |
| Internal Memory | 16/32 GB | 32 GB | 64 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 512 GB (dedicated slot) | microSD, up to 512 GB (dedicated slot) |
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| Type | Super LCD3 Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 6.4 inches | 5.9 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 720 x 1560 pixels (268 ppi) | 1080 x 2280 pixels (428 ppi) |
| Screen-to-Body Ratio | 66.55% | - | 86.97% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | Dual 4 MP, 2688х1520 pixels | 13 MP + 5 MP | 16 MP + 5 MP |
| Flash | Dual-LED | LED Flash | LED Flash |
| Features | Auto focus, 1/3' Sensor Size, 2µm Pixel Size, Simultaneous HD Video And Image Recording, Geo-tagging, Face And Smile Detection | 13 MP, f/1.9, 28mm (wide), AF 5 MP, f/2.2, depth sensor Panorama, HDR |
16 MP, f/2.0, PDAF 5 MP, f/2.2, 12mm, (ultrawide) Panorama, HDR |
| Video | Yes, 1080p@30fps, 720p@60fps, HDR, Stereo Sound Rec., Video Stabilization | 1080p@30fps | 2160p@30fps, 1080p@30fps |
| Front Camera | Yes, 5 MP, 1080p@30fps, HDR [Similar] | 8 MP, f/2.0 [Similar] | 25 MP, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42 Mbps (21 Mbps - AT&T), HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat12 600/150 Mbps |
| Bluetooth | Yes, v4.0 with A2DP | 4.2, A2DP, LE | 4.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot |
| USB | Yes, microUSB v2.0 (MHL), USB On-the-go, USB Host | microUSB 2.0 | Type-C 1.0 reversible connector |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 16/32 GB, 2 GB RAM | 32 GB, 3 GB RAM | 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 512 GB (dedicated slot) | microSD, up to 512 GB (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-Po Battery | Non-removable Li-Po Battery | Non-removable Li-Po Battery |
| Capacity | 2600 mAh | 4000 mAh | 3100 mAh |
| Stand by | Up to 271 h (2G) Up to 496 h (3G) |
- | - |
| Talk Time | Up to 14 h (2G) Up to 20 h (3G) |
- | - |
