📱 Model features |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Model | Zenfone 2 (ZE551ML 32GB) | One (16GB) |
| Other model names | Asus Zenfone 2 ZE551ML Dual-sim (32GB + 4GB RAM) | OnePlus One A0001 Cyanogen, OnePlus 1 4G LTE, BBK Bacon |
| Country or region available | feature not registered |   
(Global, International), USA, (Europe) |
| Brand | Asus | OnePlus |
| Release date | 3/1/2015 | 5/1/2014 |
| Depth | 10.9 millimeters (0.43 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 77.2 x 152.5 millimeters (3.04 x 6 in) | 75.9 x 152.9 millimeters (2.99 x 6.02 in) |
| Weight | 170 grams (5.95 ounces) | 162 grams (5.67 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
🤖 Operating System |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| System version | Android 5.0 Lollipop | Android 4.4.2 KitKat |
| Firmware update | Android 6.0 Marshmallow | Android 6.0.1 Marshmallow |
| User Interface | feature not registered | feature not registered |
⚙️ Processor |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Chipset | 64bit: Intel Atom Z3580 | 32bit: Qualcomm Snapdragon 801 MSM8974-AC (28nm) |
| CPU | Quad-core, 1 processor:
4x 2.3GHz Intel Silvermont (Quad-core) | Quad-core, 1 processor:
4x 2.5GHz Krait 400 (Quad-core) |
| GPU graphical controller | PowerVR G6430 MP4 | Qualcomm Adreno 330 578Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| RAM memory | 4GB LPDDR3 | 3GB LPDDR3 |
| Internal storage | 32GB (28GB available) | 16GB (13GB available) |
| External storage | Until 64GB microSD, microSDXC
(dedicated slot) | Not supported |
📲 Display |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Display type | TFT IPS LCD | LTPS IPS LCD |
| Screen size | 5.5" inches | 5.5" inches |
| Screen-to-body ratio | ~70.8% (screen-to-body ratio) | ~71.9% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 1920x1080 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 401 PPI | 401 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 3 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
📶 Mobile networks |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card
(dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM)
micro-SIM (3FF) | 1 slot (Single-SIM)
micro-SIM (3FF) |
| Maximum Download / Upload | 150/50 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 | UMTS 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat4 800/850/900/1700/1800/1900/2100/2600 Bands (1,2,3,4,5,7,8,20) - USA: 700/800/850/900/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,8,17,20) | LTE Cat4 (Bands 1, 3, 4, 7, 17)
TD-LTE (Bands 38, 40) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Back camera (main camera) | 13 megapixels | 13 megapixels |
| Main camera resolution | 4128x3096 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 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 | feature not registered | 1/3" inches |
| Pixel size | feature not registered | 1.12µm pixel |
| Autofocus | Autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | feature not registered | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo only main camera | HDR photo/video only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Front camera (secondary) | 5 megapixels | 5 megapixels |
| Front camera resolution | 2560x1920 pixels | 2592x1944 pixels |
| Video recording (secondary) | HD (1280x720) | HD (1280x720) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| 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 |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM (RDS) | 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+ | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| USB | MicroUSB 2.0 | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 4.1 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz)
WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz)
WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Sensors | Accelerometer
Ambient Light sensor
Compass
Gyroscope
Proximity sensor | Accelerometer
Ambient Light sensor
Compass
Gyroscope
Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Battery type | LiPo: Li-Ion polymer (Non removable) | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 3000 mAh | 3100 mAh |
| Charger, watts | Wired charging | Wired charging |
| Wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| Call control | Voice dialing, Voice recorder | 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: Black, Gold, Gray, Red, White
• Asus ZenUI
• Fast battery charging: 60% in 40min
• 5GB free ASUS WebStorage
• OpenGL 3.0
• Asus BoostMaster 18W adapter included | • Colors: Silk White
• CyanogenMod 11S
• Sony Exmor IMX214 camera
• Records video 1080p@60fps and 720p@120fps
• LED notification
• WiFi display Miracast
• Java framework |
☢️ Radiation rate |
| Asus Zenfone 2 (ZE551ML 32GB) | OnePlus One (16GB) |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.62W/kg (head), 0.75W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |