| Name | Apple's iPhone 4S
 | HTC Desire 820Q
 |
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| Processor: | Mac: OS X v10.5.8 or later | 1.2 GHz Quad-core |
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| Chipset: | | Snapdragon 410 |
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| GPU: | PowerVR SGX543MP2 | Adreno 306 |
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| Operating System: | iOS | Android |
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| Operating System Version: | iOS5 operating system | Android Kitkat |
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| Sensors: | Proximity sensor and Ambient light sensor | Compass/ Magnetometer, Proximity, Accelerometer and Ambient light |
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| Series Name: | iPhone | Desire |
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| Manufacturer: | Apple | HTC |
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| Weight: | 4.9 ounces (140 grams) | 155.00 g |
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| Dimensions: | 4.5 inches (115.2 mm) x 2.31 inches (58.6 mm) x 0.37 inch (9.3 mm) | 157.70 x 78.70 x 7.70 |
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| Camera Type: | Dual Camera | Dual Camera |
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| Front Camera: | Front camera with VGA-quality photos | 8 MP |
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| Back Camera: | 8-megapixel iSight camera | 13 MP, accompanied by single LED flash and BSI sensor |
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| Camera features: | Auto Focus Camera with LED Flash | BSI Sensor, f2.2, 2.8 cm Lens |
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| Video Camera features: | 1080p@30fps | 1080p HD video recording |
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| RAM: | 1 GB | 1 GB |
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| External Memory: | 64 GB | Up to 128 GB |
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| Internal Storage: | 16/32/64 GB flash memory | 16 GB |
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| Screen Size: | 3.5-inch (diagonal) widescreen | 5.5 inches |
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| Display: | Multi-Touch display | 5.5 inches with 1280 X 720 display resolution |
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| Ports: | 802.11b/g/n Wi-Fi (802.11n 2.4GHz only) | |
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| Battery Type: | Li-Po 1432 mAh (5.3 Wh) | 2600 mAh Li-ion |
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| Battery (Talk Time): | 8 hours on 3G, up to 14 hours on 2G (GSM) | 48 hours |
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| Battery (Standby Time): | 200 h (2G) / Up to 200 h (3G) | 300+ hours |
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| Video: | Video formats supported: H.264 video up to 1080p, 30 frames per second, High Profile level 4.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second | Pre-installed full HD video player |
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| Audio: | AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple Lossless, AIFF, and WAV | HTC BoomSound, Dual Frontal Stereo Speakers with Built-in Amplifiers, Sense Voice |
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| Accessories: | Apple In-Ear Headphones with Remote and Mic, Apple USB Power Adapter | Ear phone, 5 volt Battery charger, User manual |
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| Network: | UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz) | Wi-Fi, 3G |
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| GPRS: | Yes | Yes |
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| Connectivity: | Wi-Fi, Assisted GPS and GLONASS | microUSB v2.0, GPS, 3.5 mm audio jack, DLNA |
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| Bluetooth: | 4.0 wireless technology | Bluetooth v4.0 |
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| Available Colors: | White, Black | Santorini White, Milky-way Grey |
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| Announced/Launched Date: | NA | September 2014 |
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| Built-in Apps: | Apple's iOS related | HTC Connect, HTC BlinkFeed, HTC Sense |
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| SIM Slots: | Single SIM | Dual SIM |
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| SIM Card Type: | Regular SIM | Nano SIM |
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| Category: | Mid range Smartphone | Mid range Smartphone |
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| Price Range: | US$251 to US$499 | US$251 to US$499 |
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| Sensors: Accelerometer: | | Yes |
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| Sensors: Gyroscope: | | Yes |
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| Sensors: GPS: | | Yes |
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| Sensors: Compass: | | Yes |
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| Sensors: Barometer: | | No |
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| Read Apple's iPhone 4S reviews. | Read HTC Desire 820Q reviews. |
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| Compare Apple's iPhone 4S: HTC 8XSamsung Galaxy S DUOSSamsung Galaxy Note IINokia Lumia 920Samsung Galaxy Victory Lenovo S880LG Optimus L5 E612LG Optimus L7 P705SONY Xperia USony Xperia PSony Ericsson Xperia ARC S LT18iNokia Lumia 810LG Optimus L9 P765LG E730Lava XOLO A700Karbonn A11Karbonn A21Micromax A116 Canvas HDIntex Aqua StyleSamsung Galaxy S II plusSamsung Galaxy Grand Duos GT-i9082EWASony Xperia tipo dualSamsung Galaxy Fame S6810BLU Quattro 4.5 HDLava XOLO A1000 | Compare HTC Desire 820Q: HTC 8XSamsung Galaxy S DUOSSamsung Galaxy Note IINokia Lumia 920Samsung Galaxy Victory Lenovo S880LG Optimus L5 E612LG Optimus L7 P705SONY Xperia USony Xperia PSony Ericsson Xperia ARC S LT18iNokia Lumia 810LG Optimus L9 P765LG E730Apple's iPhone 4SLava XOLO A700Karbonn A11Karbonn A21Micromax A116 Canvas HDIntex Aqua StyleSamsung Galaxy S II plusSamsung Galaxy Grand Duos GT-i9082EWASony Xperia tipo dualSamsung Galaxy Fame S6810BLU Quattro 4.5 HD |