Asus Zenfone Selfie (ZD551KL 16GB) vs HTC One X (S720E)
Side by side comparison between Asus Zenfone Selfie vs HTC One X phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
13
MP
MP
13mp
2GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Removable)
vs
4.7"
SLCD2
SLCD2
720x1280
8
MP
MP
1.3mp
1GB
RAM
RAM
Quad-core
1800
mAh
mAh
(Non removable)
What's the better phone? Asus Zenfone Selfie (ZD551KL 16GB)
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!
20 Advantages 
6 Advantages | 21 Common items in both devices |
| 16 million |
| Only digital zoom |
| Autofocus |
| Full HD (1920x1080) |
| Capacitive |
| Multitouch |
| Accelerometer |
| +14 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 | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| Model | Zenfone Selfie (ZD551KL 16GB) | One X (S720E) |
| Other model names | Asus Zenfone Selfie Dual Sim ZD551KL | HTC One X S720E, HTC Supreme |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Asus | HTC |
| Release date | 7/1/2015 | 3/30/2012 |
| Depth | 10.8 millimeters (0.43 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 77.2 x 156.5 millimeters (3.04 x 6.16 in) | 69.9 x 134.36 millimeters (2.75 x 5.29 in) |
| Weight | 170 grams (5.95 ounces) | 130 grams (4.55 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| Display type | TFT IPS LCD | TFT Super LCD 2 |
| Screen size | 5.5" inches | 4.7" inches |
| Screen-to-body ratio | ~69% (screen-to-body ratio) | ~64.8% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 401 PPI | 312 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 4 | Gorilla Glass |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| System version | Android 5.0.2 Lollipop | Android 4.0.3 Ice Cream Sandwich ICS |
| Firmware update | Android 6.0 Marshmallow | Android 4.2.2 Jelly Bean |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| Chipset | 64bit: Qualcomm Snapdragon 615 MSM8939 (28nm) | 32bit: NVIDIA Tegra 3 AP33H |
| CPU | Octa-core, 2 processors: 4x 1.7GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) | Quad-core, 1 processor: 4x 1.5GHz ARM Cortex-A9 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 405 | NVIDIA GeForce |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| RAM memory | 2GB LPDDR3 | 1GB LPDDR2 |
| Internal storage | 16GB (12GB available) | 32GB (28GB available) |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| 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 | 21/5.76 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G |
| 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 850/900/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat4 800/850/900/1800/1900/2100/2600 (Bands 1,2,3,5,7,8,20) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| 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 Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| Back camera (main camera) | 13 megapixels | 8 megapixels |
| Main camera resolution | 4128x3096 pixels | 3264x2448 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 24 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.2" inches | feature not registered |
| Pixel size | feature not registered | feature not registered |
| 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 | Supported | Not supported |
| HDR | HDR photo only main camera | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| Front camera (secondary) | 13 megapixels | 1.3 megapixels |
| Front camera resolution | 4128x3096 pixels | 1280x1024 pixels |
| Video recording (secondary) | Full HD (1920x1080) | HD (1280x720) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | 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 | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.263, H.264, WMV |
| Audio formats | MP3, WAV, eAAC+ | MP3, eAAC+, WMA, WAV |
🔌 Connectivity | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Micro-B USB MHL | Micro-B USB MHL |
| Bluetooth | 4.0 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| Battery type | LiPo: li-ion polymer (Removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3000 mAh | 1800 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 23 hours | 8.5 hours |
| Standby | 255 hours (10.6 days) | 300 hours (12.5 days) |
➕ Other features | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| 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, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • 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 | • Colors: White, Gray • PenTile Matrix LCD • HTC Sense 4.0 UI • HTC Beats Audio • Video stabilization • Capture a photo in the midst of recording HD video Java framework |
☢️ Radiation rate | ||
| Asus Zenfone Selfie (ZD551KL 16GB) | HTC One X (S720E) | |
| 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 |