| Physical features | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Model | Find 7 (X9077) | Zenfone Selfie (ZD551KL 16GB) |
| Other model names | Oppo Find 7 QHD (China Mobile), Oppo Find 7 X9077 | Asus Zenfone Selfie Dual Sim ZD551KL |
| Country or region available | 
China | 
(Global, International) |
| Brand | Oppo | Asus |
| Release date | April, 2014 | July, 2015 |
| Depth | 9.2 millimeters (0.36 inches) | 10.8 millimeters (0.43 inches) |
| Size (width x height) | 75 x 152.6 millimeters (2.95 x 6.01 in) | 77.2 x 156.5 millimeters (3.04 x 6.16 in) |
| Weight | 171 grams (5.99 ounces) | 170 grams (5.95 ounces) |
| Qwerty physical keyboard | Not supported | Not supported |
| Antenna | Internal antenna | Internal antenna |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
| System (OS) | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Operating system | Android 4.3 Jelly Bean | Android 5.0.2 Lollipop |
| Firmware update | feature not registered | Android 6.0 Marshmallow |
| Hardware | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Chipset | 32bit - Qualcomm Snapdragon 801 MSM8974-AC (28nm) | 64bit - Qualcomm Snapdragon 615 MSM8939 (28nm) |
| CPU processor | 2.5Ghz Quad-Core Krait 400 | Octa-Core, 2 processors:
1.7Ghz Quad-Core ARM Cortex-A53
1Ghz Quad-Core ARM Cortex-A53 |
| GPU graphical controller | Qualcomm Adreno 330 578Mhz | Qualcomm Adreno 405 |
| RAM memory | 3GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 32GB (25GB available) | 16GB (12GB available) |
| External storage | Until 128GB microSD, microSDXC
(dedicated slot) | Until 64GB microSD, microSDXC
(dedicated slot) |
| Display | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5.5" inches | 5.5" inches |
| Screen-to-body ratio | ~72.9% (screen-to-body ratio) | ~69% (screen-to-body ratio) |
| Display resolution | 1440x2560 pixels | 1080x1920 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 534 PPI | 401 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 4 |
| Display features | feature not registered | feature not registered |
| Mobile networks | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card
(dedicated slot) |
| SIM card | 1 slot (Single-SIM)
micro-SIM (3FF) | 2 slots (Dual-SIM)
micro-SIM (3FF) |
| Maximum download/upload | 100/50 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band detailsCollapse 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 | TD-SCDMA 1900/2000
UMTS 850/900/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | TD-LTE 1900/2300/2600 (Bands 38,39,40) | LTE Cat4 800/850/900/1800/1900/2100/2600 (Bands 1,2,3,5,7,8,20) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
| Calling | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Speakerphone | Supported | Supported |
| Video calling | Supported | Supported |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Camera | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Back camera (main camera) | 13 megapixels | 13 megapixels |
| Main camera resolution | 4128x3096 pixels | 4128x3096 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | Dual-LED flash |
| Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3" inches | 1/3.2" inches |
| Pixel size | feature not registered | feature not registered |
| Autofocus | 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 only main camera | HDR photo only main camera |
| 2ª camera | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Front camera (secondary) | 5 megapixels | 13 megapixels |
| Front camera resolution | 2592x1944 pixels | 4128x3096 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (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 |
| Multimedia | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Radio | Not supported | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, eAAC+ |
| Connectivity | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| TV output | Not supported | Micro-B USB MHL |
| Audio output | 3.5mm jack | 3.5mm jack |
| Bluetooth | 4.0 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO | 802.11 b/g/n/ac (2.4Ghz, 5Ghz) |
| DLNA | Supported | Not supported |
| NFC | Supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS |
| Infrared port | Not supported | Not supported |
| Other functions | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Active noise cancellation | Supported | Not supported |
| Vibrating alert | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Sensors | Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
| Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Hall effect
|
| Other features | - Colors: Black, White
- ColorOS UI
- LED notification light
- USB On-The-Go 1.3
- 720p slow motion video 120fps
- Oppo MaxxAudio sound enhancement
- WiFi display
- WiFi direct
- WiFi hotspot
- Support for gloved and wet touch
- Rapid Charge battery | - Colors: Pure White, Chic Pink, Aqua Blue
- ASUS ZenUI
- ASUS TruVivid
- Oleophobic coating on screen
- Laser autofocus camera
- Toshiba sensor camera
- 5GB ASUS WebStorage
- Beidou GPS
- WiFi direct, hotspot |
| Power supply | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| Battery | LiPo: Li-Ion polymer (Removable)
BLP575 | LiPo: Li-Ion polymer (Removable) |
| Battery capacity | 3000 mAh | 3000 mAh |
| Charger, watts | Standard charging | Standard charging |
| Talk time autonomy | feature not registered | 1380 minutes | 23 hours | 1 day |
| Standby | feature not registered | 15300 minutes | 255 hours | 10.6 days |
| Radiation rate | Oppo Find 7 (X9077) | Asus Zenfone Selfie (ZD551KL 16GB) |
| 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 |