Phone Comparison - HTC Desire 820 vs Samsung Galaxy A5 vs Samsung Galaxy S21 Ultra 5G
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| Manufacturer | HTC | Samsung | Samsung |
| Announced | September 2014 | October 2014 | 2021, January 14 |
| Status | Coming Soon - September 2014 | Available - November 2014 | Coming soon. Exp. release 2021, January 29 |
| Price | - | Rs. 18,090 ($266.03) [Similarly Priced] | Rs. 105,999 ($0.00) [Similarly Priced] |
| Colors | Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tang | Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light B | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
157.7 x 78.7 x 7.7 mm (6.21 x 3.1 x 0.3 in) |
139.3 x 69.7 x 6.7 mm (5.48 x 2.74 x 0.26 in) |
165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in) |
| Weight | 155 g (5.47 oz) | 123 g (4.34 oz) | 227 g (8.01 oz) |
| SIM Type | - | - | Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only) CDMA2000 1xEV-DO |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 - EMEA version HSDPA 900 / 2100 - Asia version |
HSDPA 850 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE 900 / 1800 / 2100 / 2600 - EMEA version | LTE | LTE |
| 5G Network | - | - | SA/NSA/Sub6/mmWave |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail, IM | |
| Build Features | - | - | - Fingerprint Sensor (under display, ultrasonic) Samsung Pay (Visa, MasterCard certified) IP68 dust/water resistant (up to 1.5m for 30 mins) Stylus support Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+ |
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| OS | Android OS, v4.4.2 (KitKat) | Android OS, v4.4.2 (KitKat) | Android 11 |
| Processor | Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 | Quad-core 1.2 GHz | Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International / Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China/Korea, Exynos 2100 - Global / Qualcomm Snapdragon 875 - USA |
| GPU | Adreno 405 | - | Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea |
| RAM | 2 GB | 2 GB | 16 GB |
| Internal Memory | 16 GB | 16 GB | 512 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 64 GB | microSDXC (uses shared SIM slot) |
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| Type | LCD Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen | QHD+ Dynamic AMOLED 2X Display 120Hz Refresh Rate HDR10+ 1500 nits (peak) Corning Gorilla Glass Victus Always-on display |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 5.5 inches | 5.0 inches | 6.8 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 720 x 1280 pixels (294 ppi) | 1440 x 3200 pixels (516 ppi) |
| Screen-to-Body Ratio | 67.20% | 70.85% | 89.46% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | - | FM radio (Snapdragon model only; market/operator dependent) |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4160 x 3120 pixels | 13 MP, 4128 x 3096 pixels | 108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, Simultaneous HD Video And Image Recording, HDR | Auto focus, Geo-tagging, Face Detection, Panorama, HDR, Wide Selfie, Rear-cam Selfie | 108 MP (2nd gen), f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 10 MP, f/2.4, 70mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video auto-HDR, panorama |
| Video | 1080p@30fps, 720p@60fps | 1080p@30fps | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS |
| Front Camera | 8 MP, 1080p [Similar] | 5 MP [Similar] |
40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF Dual video call, Auto-HDR 4K@30/60fps, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G |
| Bluetooth | v4.0, A2DP | v4.0, BLE, ANT+ | 5.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | USB Type-C 3.2, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Browser | HTML5 | HTML5 | Yes |
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| Internal | 16 GB, 2 GB RAM | 16 GB, 2 GB RAM | 512 GB, 16 GB RAM or 256 GB, 12 GB RAM or 128 GB, 12 GB RAM UFS 3.1 |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 64 GB | microSDXC (uses shared SIM slot) |
| USB OTG | - | - | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Barometer 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 Fast battery charging 25W USB Power Delivery 3.0 Fast Qi/PMA wireless charging 15W Reverse wireless charging 4.5W |
| Capacity | 2600 mAh | 2300 mAh | 5000 mAh |
| Stand by | Up to 424 h (3G) | - | - |
| Talk Time | Up to 22 h 24 min (3G) | - | - |
