Phone Comparison - Nokia Lumia 638 vs HTC Desire 820s dual sim
Nokia Lumia 638.jpg)
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HTC Desire 820s dual sim.jpg)
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| Manufacturer | Nokia | HTC |
| Announced | December 2014 | March 2015 |
| Status | Available - December 2014 | Available - March 2015 |
| Price | Rs. 7,999 ($117.63) [Similarly Priced] | Rs. 27,900 ($410.29) [Similarly Priced] |
| Colors | Black | Marble White, Milkyway Gray, Monarch Orange, Santorini White, Tu |
| Form Factor | Candybar | Candybar |
| Dimension |
129.5 x 66.7 x 9.2 mm (5.1 x 2.63 x 0.36 in) |
157.7 x 78.7 x 7.7 mm (6.21 x 3.1 x 0.3 in) |
| Weight | 136 g (4.8 oz) | 155 g (5.47 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 TD-SCDMA 1900 / 2000 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE 1800 / 1900 / 2100 / 2300 / 2500 / 2600 (Bands 3, 7, 38, 39, 40, 41) | LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600 (Bands 1, 3, 7, 8, 38, 39, 40, 41) |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | Microsoft Windows Phone 8.1 | Android OS, v4.4.4 (KitKat) |
| Processor | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 [Similar] | Octa-core 1.7 GHz Cortex-A53, Mediatek MT6752 [Similar] |
| GPU | Adreno 305 [Similar] | Mali-T760MP2 [Similar] |
| RAM | 1 GB [Browse Similar] | 2 GB [Browse Similar] |
| Internal Memory | 8 GB | 16 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 32 GB |
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| Type | IPS LCD capacitive touchscreen, Corning Gorilla Glass 3, ClearBlack Display | Capacitive Touchscreen, Corning Gorilla Glass 3 |
| Colors | 16M colors | 16M colors |
| Size | 4.5 inches [Similar] | 5.5 inches [Similar] |
| Resolution | 480 x 854 pixels (218 ppi) [Similar] | 720 x 1280 pixels (267 ppi) [Similar] |
| Screen-to-Body Ratio | 64.43% | 67.20% |
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| Radio | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable |
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| Rear Camera | 5 MP, 2592 х 1944 pixels [Similar] | 13 MP, 4160 x 3120 pixels [Similar] |
| Flash | No | LED flash |
| Features | Auto focus, 1/4 | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | Yes | 1080p@30fps |
| Front Camera | No [Similar] | 8 MP, 1080p [Similar] |
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| GPRS | Yes | Yes |
| Edge | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP, LE/ apt-X after WP8 Denim update | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 b/g/n, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 32 GB |
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| Type | Li-Ion Battery (BL-5H) | Non-removable Li-Po Battery |
| Capacity | 1830 mAh | 2600 mAh |
| Stand by | - | Up to 560 h (3G) |
| Talk Time | - | Up to 12 h 10 min (3G) |
