Oppo R7 (USA) vs HTC Desire 820 (Dual-Sim)
Side by side comparison between Oppo R7 vs HTC Desire 820 phones, differences, pros, cons and full specifications. What's the better?
,
5"
AMOLED
AMOLED
1080x1920
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
2320
mAh
mAh
(Non removable)
vs
5.5"
SLCD3
SLCD3
720x1280
13
MP
MP
8mp
2GB
RAM
RAM
Octa-core
2600
mAh
mAh
(Non removable)
What's the better phone? Oppo R7 (USA)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
10 Advantages 
3 Advantages | 32 Common items in both devices |
| 1.5GHz 64bit Octa-core |
| 16GB (12GB available) |
| 16 million |
| (back) 13MP |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| +25 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Model | Oppo R7 (USA) | Desire 820 (Dual-Sim) |
| Other model names | Oppo R7f USA version, Oppo R7 LTE, Oppo R7 Dual-Sim | HTC Desire 820q Dual Sim, HTC Desire 820 Dual Chip |
| Country or region available |  USA | feature not registered |
| Brand | Oppo | HTC |
| Release date | 5/20/2015 | 10/1/2014 |
| Depth | 6.3 millimeters (0.25 inches) | 7.7 millimeters (0.3 inches) |
| Size (width x height) | 71 x 143 millimeters (2.8 x 5.63 in) | 78.7 x 157.7 millimeters (3.1 x 6.21 in) |
| Weight | 147 grams (5.15 ounces) | 155 grams (5.43 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Display type | AMOLED | TFT Super LCD 3 |
| Screen size | 5" inches | 5.5" inches |
| Screen-to-body ratio | ~67.9% (screen-to-body ratio) | ~67.2% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 441 PPI | 267 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| System version | Android 4.4.2 KitKat | Android 4.4.2 KitKat |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Chipset | 64bit: Qualcomm Snapdragon 615 MSM8939 (28nm) | 64bit: Qualcomm Snapdragon 615 MSM8939 (28nm) |
| CPU | Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 405 | Qualcomm Adreno 405 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| RAM memory | 3GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 16GB (12GB available) | 16GB (12GB available) |
| External storage | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 128GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat4 700/800/1700/1800/2100/2600 (Bands 1,3,4,7,17,20) | LTE 900/1800/2100/2600, TD-LTE 1900/2300/2500/2600 (Bands 1,3,7,8,38,39,40,41) - Asia, India |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE |
📷 Camera | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Back camera (main camera) | 13 megapixels | 13 megapixels |
| Main camera resolution | 4128x3096 pixels | 4160x3120 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.2 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3" inches | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo/video and HDR photo on front camera | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Front camera (secondary) | 8 megapixels | 8 megapixels |
| Front camera resolution | 3264x2448 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.4 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot |
| DLNA | Supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 2320 mAh | 2600 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 22 hours |
| Standby | feature not registered | 424 hours (17.7 days) |
➕ Other features | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Golden, Silver • USB OTG On-The-Go • Color OS 2.1 UI • Samsung 3M2 sensor camera • Fast battery charging: 75% in 30min | • Colors: White, Grey, Tangerine, Blue, Orange • HTC Sense UI 6.0 • HTC BoomSound • Face Fusion Java framework |
☢️ Radiation rate | ||
| Oppo R7 (USA) | HTC Desire 820 (Dual-Sim) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |