Asus Zenfone Zoom (ZX550 64GB) vs Samsung Galaxy Alpha (SM-G850A)
Side by side comparison between Asus Zenfone Zoom (ZX550) vs Samsung Galaxy Alpha phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
13
MP
MP
5mp
2GB
RAM
RAM
Quad-core
3000
mAh
mAh
(Non removable)
vs
4.7"
AMOLED
AMOLED
720x1280
12
MP
MP
2.1mp
2GB
RAM
RAM
Quad-core
1860
mAh
mAh
(Removable)
What's the better phone? Asus Zenfone Zoom (ZX550 64GB)
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!
13 Advantages 
11 Advantages | 24 Common items in both devices |
| 2GB LPDDR3 |
| 16 million |
| LDAF: laser detection autofocus / Autofocus |
| HDR photo only main camera / HDR photo/video only main camera |
| Android 5.0.2 Lollipop |
| 4G LTE / 4G LTE-A |
| 150 Mbps |
| +17 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 Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| Model | Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) |
| Other model names | Asus Zenfone Zoom ZX550 (Dual-Sim), Asus ZX550 | AT&T Samsung Galaxy Alpha S801 SM-G850A for USA |
| Country or region available |  (Global, International) |  USA |
| Brand | Asus | Samsung |
| Release date | 12/1/2015 | 9/1/2014 |
| Depth | 12 millimeters (0.47 inches) | 6.7 millimeters (0.26 inches) |
| Size (width x height) | 78.8 x 158.9 millimeters (3.1 x 6.26 in) | 65.5 x 132.4 millimeters (2.58 x 5.21 in) |
| Weight | 185 grams (6.48 ounces) | 115 grams (4.03 ounces) |
| Build, materials | Aluminum frame, glass front, leather back | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 5.5" inches | 4.7" inches |
| Screen-to-body ratio | ~66.6% (screen-to-body ratio) | ~70.2% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 401 PPI | 312 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 4 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| System version | Android 5.0.2 Lollipop | Android 4.4.4 KitKat |
| Firmware update | feature not registered | Android 5.0.2 Lollipop |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| Chipset | 64bit: Intel Atom Z3580 (22nm) | 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 Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| RAM memory | 2GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 64GB (54GB available) | 32GB (25GB available) |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| 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) 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 850/900/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat4 (Bands 1, 2, 3, 4, 5, 7, 8, 9, 17, 18, 19, 20, 28, 29) TD-LTE (Bands 38, 39, 40, 41) | LTE 700/850/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,17) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
| 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 Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| Back camera (main camera) | 13 megapixels | 12 megapixels |
| Main camera resolution | 4128x3096 pixels | 4608x2592 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/2.7 (aperture) | f/2.2 (aperture) |
| Focal length | 28mm (lens) | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | LDAF: laser detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not 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 Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| Front camera (secondary) | 5 megapixels | 2.1 megapixels |
| Front camera resolution | 2560x1920 pixels | 1920x1080 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 |
🔉 Sound and multimedia | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 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+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | 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 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 | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 3000 mAh | 1860 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 11 hours |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (Swype), 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, White • Asus ZenUI • Hoya camera sensor • Laser autofocus camera (0.03 seconds) • 3x optical zoom camera • Dual tone flash • 5GB Asus Webstorage • Only one micro SIM card can connect to 3G/4G service at a time | • Colors: Black, Silver, White, Gold, Blue • USB OTG On-The-Go • Dual Shot camera (video + photo) • Fingerprint sensor (PayPal certified) • Dropbox 50GB • ANT+ support |
☢️ Radiation rate | ||
| Asus Zenfone Zoom (ZX550 64GB) | Galaxy Alpha (SM-G850A) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.25W/kg (head), 1.05W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.4W/kg (head), 0.265W/kg (body) |