Sony Ericsson Z520
#11113
VK Mobile VK4100
#9213Category Breakdown
Sony Ericsson Z520
VK Mobile VK4100
Performance
54.358.8
Camera
41.841.8
Display
48.348.3
Battery
43.543.5
Build
70.870.8
Overall
50.051.3
Summary
- The Sony Ericsson Z520 and VK Mobile VK4100 both feature a 1.8-inch TFT display with a resolution of 128 x 160 pixels, but the VK4100 supports 256K colors compared to the Z520's 65K colors, potentially offering better color depth.
- In terms of performance, the Z520 has 16MB of storage and 16GB of RAM, while the VK4100 significantly increases this to 128MB of storage and 128GB of RAM.
- Both devices have a VGA rear camera with no optical image stabilization or video capabilities.
- The Z520 is equipped with a 900mAh battery, while the VK4100's battery capacity is unspecified.
- Build quality shows the Z520 is lighter at 96g with more compact dimensions, while the VK4100 is slightly bulkier and heavier.
- Both phones lack advanced software features, stereo speakers, and headphone jacks, providing a basic user experience.
Side-by-side Specification Comparison
Sony Ericsson Z520
VK Mobile VK4100
General
Release Date
2005
2006
Announced
2005
2006
Description
Z520i - GSM 900/1800/1900 in Europe and AsiaZ520a - GSM 850/900/1800/1900 in America
N/A
Display
Size
1.8"
1.8"
Type
TFT, 65K colors
TFT, 256K colors
Resolution
128 x 160 pixels (~114 ppi density)
128 x 160 pixels (~114 ppi density)
PPI
128
128
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
N/A
CPU
N/A
N/A
GPU
N/A
N/A
Memory
16MB
128MB
Expandable Storage
✗
✓
Card Slot
No
Yes
Camera
Main Camera
N/A
N/A
Main Camera Details
VGA
VGA
Front Camera
N/A
N/A
Front Camera Details
N/A
N/A
Video Recording
Yes
No
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
900 mAh
N/A
Battery Details
Removable Li-Ion 900 mAh battery (BST-37)
Removable Li-Ion battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
93 x 46 x 24 mm (3.66 x 1.81 x 0.94 in)
104 x 52 x 25.9 mm (4.09 x 2.05 x 1.02 in)
Weight
96 g
N/A
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Light Blue, Pale Purple, Pale Pink, Pale Yellow
Black
Foldable
✗
✗
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
GSM
GSM
Network Speed
N/A
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
2.0
Yes
NFC
✗
✗
USB
Proprietary
Proprietary
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
No
No
Software
Operating System
N/A
N/A
OS Version
N/A
N/A
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
N/A
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
No
Audio Jack
No
No