Asus Zenfone Zoom ZX550
#4944
Asus Zenfone Zoom ZX551ML
#4943Category Breakdown
Asus Zenfone Zoom ZX550
Asus Zenfone Zoom ZX551ML
Performance
54.354.3
Camera
48.948.9
Display
70.570.5
Battery
43.543.5
Build
68.868.8
Overall
56.056.0
Summary
- The Asus Zenfone Zoom ZX550 and ZX551ML share similar build quality with identical dimensions and weight, but the ZX551ML features a slightly upgraded chipset, the Intel Atom Z3590, providing improved performance with a higher CPU clock speed of 2.5 GHz compared to the ZX550's 2.3 GHz.
- Both models have a 5.5-inch IPS LCD display with the same resolution, though the ZX550 has a marginally higher pixel density.
- Camera specifications are identical, featuring a 13 MP rear camera with OIS and 3x optical zoom, while both models offer a 5 MP front camera.
- Battery capacity remains the same at 3000 mAh, but the ZX551ML supports faster 18W charging.
- Both run on Android 5.0 with ZenUI, but the ZX551ML can be upgraded to Android 6.0, enhancing the software experience.
Side-by-side Specification Comparison
Asus Zenfone Zoom ZX550
Asus Zenfone Zoom ZX551ML
General
Release Date
2015
2015
Announced
2015
2015
Description
N/A
For Europe
Display
Size
5.5"
5.5"
Type
IPS LCD
IPS LCD
Resolution
1080 x 1920 pixels, 16:9 ratio (~403 ppi density)
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
Corning Gorilla Glass 4
Performance
Chipset
Intel Atom Z3580
Intel Atom Z3590
CPU
Quad-core 2.3 GHz
Quad-core 2.5 GHz
GPU
PowerVR G6430
PowerVR G6430
Memory
16GB 2GB RAM, 32GB 2GB RAM, 64GB 2GB RAM, 128GB 4GB RAM
32GB 4GB RAM, 64GB 4GB RAM, 128GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP
13 MP
Main Camera Details
13 MP, f/2.7-4.8, 28-84mm (periscope telephoto zoom), OIS, 3x optical zoom
13 MP, f/2.7-4.8, 28-84mm (periscope telephoto zoom), OIS, 3x optical zoom
Front Camera
5 MP
5 MP
Front Camera Details
5 MP, f/2.0
5 MP, f/2.0
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
OIS
✓
✓
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
3000 mAh
3000 mAh
Battery Details
Li-Po 3000 mAh, non-removable
Li-Po 3000 mAh, non-removable
Charging Details
N/A
18W wired, 60% in 40 min
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
158.9 x 78.8 x 12 mm (6.26 x 3.10 x 0.47 in)
158.9 x 78.8 x 12 mm (6.26 x 3.10 x 0.47 in)
Weight
185 g
185 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Meteorite black, Glacier white
Pure Black, Ceramic White
Foldable
✗
✗
Connectivity
SIM
Dual SIM (Micro-SIM, dual stand-by)
Micro-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA 42.2/5.76 Mbps, LTE Cat4+ 250/50 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot
Bluetooth
4.0, A2DP, EDR
4.0, A2DP, EDR
NFC
✗
✓
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS
GPS, GLONASS, BDS
Software
Operating System
Android 5.0 (Lollipop), ZenUI
Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow), ZenUI
OS Version
Android 5.0 (Lollipop), ZenUI
Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow), ZenUI
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, gyro, proximity, compass
Accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes