Category Breakdown
Asus Zenfone Go ZB551KL
Microsoft Lumia 640 Dual SIM
Performance
53.743.6
Camera
19.119.1
Display
56.556.5
Battery
25.021.8
Build
0.20.2
Connectivity
47.037.0
Audio
8.98.9
Overall
28.525.2
Summary
- The Asus Zenfone Go ZB551KL features a larger 5.5-inch IPS LCD display with a resolution of 720 x 1280 pixels, compared to the 5.0-inch display of the Microsoft Lumia 640 Dual SIM, which has the same resolution but a higher pixel density.
- In terms of performance, the Zenfone Go is powered by a slightly faster Qualcomm Snapdragon 400 chipset with a 1.6 GHz CPU and offers more RAM at 2GB, while the Lumia 640 has a 1.2 GHz CPU and 1GB of RAM.
- Both devices have an 8 MP rear camera capable of 1080p video recording, but the Lumia's camera has a wider aperture.
- The Zenfone Go has a larger 3010 mAh battery compared to the Lumia's 2500 mAh, which may provide better longevity.
- Software-wise, the Zenfone runs on Android 5.1, while the Lumia operates on Windows Phone 8.1, upgradable to Windows 10, offering different user experiences.
Side-by-side Specification Comparison
Asus Zenfone Go ZB551KL
Microsoft Lumia 640 Dual SIM
General
Release Date
2016
2015
Announced
2016
2015
Description
N/A
N/A
Display
Size
5.5"
5"
Type
IPS LCD
IPS LCD
Resolution
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
Corning Gorilla Glass 3
Performance
Chipset
Qualcomm MSM8928 Snapdragon 400 (28 nm)
Qualcomm MSM8926 Snapdragon 400 (28 nm)
CPU
Quad-core 1.6 GHz Cortex-A7
Quad-core 1.2 GHz Cortex-A7
GPU
Adreno 305
Adreno 305
Memory
16GB 2GB RAM, 32GB 2GB RAM
8GB 1GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
8 MP or 13 MP, f/2.0, AF
8 MP, f/2.2, 28mm (wide), 1/4.0", AF
Main Camera Features
Dual-LED dual-tone flash, HDR, panorama
LED flash
Front Camera
5 MP, f/2.0
1 MP
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
720p
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3010 mAh
2500 mAh
Battery Details
Li-Ion 3010 mAh, removable
Li-Ion 2500 mAh, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
151 x 76.9 x 10.7 mm (5.94 x 3.03 x 0.42 in)
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
Weight
160 g
145 g
Materials
N/A
N/A
Colors
Charcoal Black, Pearl White, Lake Blue, Glacier Gray, Sheer Gold, Glamour Red, Floral Pink, Silver Blue
Glossy cyan, Orange, White, Matte black
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Dual SIM (Micro-SIM, dual stand-by)
Dual SIM (Micro-SIM, dual stand-by)
Network
GSM / HSPA / LTE
GSM / HSPA
Network Speed
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA 42.2/5.76 Mbps
5G
✗
✗
4G
✓
✗
WiFi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth
4.0, A2DP, EDR
4.0, A2DP
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS, GLONASS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 5.1 (Lollipop)
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, proximity
Accelerometer, proximity, compass

