Category Breakdown
Asus Zenfone 2 ZE551ML
vivo Y55s (2017)
Performance
58.353.5
Camera
19.119.1
Display
58.956.5
Battery
24.222.8
Build
71.877.8
Connectivity
59.450.8
Audio
8.98.9
Overall
35.435.7
Summary
- The Asus Zenfone 2 ZE551ML features a larger 5.5-inch IPS LCD display with a higher resolution of 1080 x 1920 pixels, compared to the 5.2-inch 720 x 1280 pixels display of the vivo Y55s (2017).
- In terms of performance, the Zenfone is powered by an Intel Atom Z3580 chipset with a quad-core CPU running at 2.3 GHz, while the Y55s uses a Qualcomm Snapdragon 425 with a 1.4 GHz quad-core CPU, resulting in superior processing capabilities for the Zenfone.
- Both phones have a 13 MP rear camera, but the Zenfone has a slightly wider aperture at f/2.0, potentially offering better low-light performance.
- The Zenfone also has a larger 3000 mAh battery compared to the Y55s's 2730 mAh, which may provide longer usage time.
- In terms of software, the Zenfone runs on Android 5.0 (upgradable to 6.0), while the Y55s comes with Android 6.0, offering a more updated software experience.
- Build quality favors the Y55s with its aluminum back and frame, making it lighter and slimmer than the Zenfone, which has a plastic back and frame.
Side-by-side Specification Comparison
Asus Zenfone 2 ZE551ML
vivo Y55s (2017)
General
Release Date
2015
2017
Announced
2015
2017
Description
N/A
N/A
Display
Size
5.5"
5.2"
Type
IPS LCD
IPS LCD
Resolution
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
720 x 1280 pixels, 16:9 ratio (~282 ppi density)
PPI
1080
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
N/A
Performance
Chipset
Intel Atom Z3580 (4 GB RAM model)Intel Atom Z3560 (2 GB RAM model)
Qualcomm MSM8917 Snapdragon 425 (28 nm)
CPU
Quad-core 2.3 GHz (4 GB RAM model)Quad-core 1.8 GHz (2 GB RAM model)
Quad-core 1.4 GHz Cortex-A53
GPU
PowerVR G6430
Adreno 306
Memory
16GB 2GB RAM, 32GB 2GB RAM, 32GB 4GB RAM, 64GB 4GB RAM, 128GB 4GB RAM
16GB 2GB RAM, 16GB 3GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP, f/2.0, AF
13 MP, f/2.2, AF
Main Camera Features
Dual-LED dual-tone flash, panorama, HDR
LED flash, HDR, panorama
Front Camera
5 MP, f/2.0
5 MP, f/2.2
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3000 mAh
2730 mAh
Battery Details
Li-Po 3000 mAh, non-removable
Li-Ion 2730 mAh, non-removable
Charging Details
18W wired, 60% in 40 min
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
152.5 x 77.2 x 10.9 mm (6.00 x 3.04 x 0.43 in)
147.9 x 72.9 x 7.5 mm (5.82 x 2.87 x 0.30 in)
Weight
170 g
142 g
Materials
Glass front (Gorilla Glass 3), plastic back, plastic frame
Glass front, aluminum back, aluminum frame
Colors
Osmium Black, Sheer Gold, Glacier Gray, Glamor Red, Ceramic White
Crown Gold, Rose Gold, Space Gray
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Dual SIM (Micro-SIM, dual stand-by)
Nano-SIM + 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 150/50 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
4.0, A2DP, EDR
4.2, A2DP, LE
NFC
✓
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS
GPS, GLONASS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow)
Android 6 (Marshmallow), Funtouch 3
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, gyro, proximity, compass
Accelerometer, proximity, compass

