NIU C21A
#10729
VK Mobile VK4100
#9213Category Breakdown
NIU C21A
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 NIU C21A and VK Mobile VK4100 both feature a 1.8-inch TFT display with a resolution of 128 x 160 pixels, offering similar visual experiences.
- In terms of performance, the C21A has 32MB of RAM compared to the VK4100's 128MB, suggesting the latter may handle tasks more efficiently.
- Both devices have a VGA rear camera with no video capabilities and no front camera.
- The C21A is equipped with a 600mAh battery, while the VK4100 has an unspecified battery capacity, which may impact overall longevity.
- The C21A is lighter at 73g, whereas the VK4100's weight is not specified.
- Both phones lack advanced software features and modern connectivity options, with the C21A supporting Bluetooth 2.0 and the VK4100 featuring proprietary USB connectivity.
Side-by-side Specification Comparison
NIU C21A
VK Mobile VK4100
General
Release Date
2013
2006
Announced
2013
2006
Description
For Mexico
N/A
Display
Size
1.8"
1.8"
Type
TFT, 256K 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
32Mb 32Mb RAM
128MB
Expandable Storage
✗
✓
Card Slot
microSDHC
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
No
No
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
600 mAh
N/A
Battery Details
Li-Ion 600 mAh, removable
Removable Li-Ion battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
106 x 45 x 14.5 mm (4.17 x 1.77 x 0.57 in)
104 x 52 x 25.9 mm (4.09 x 2.05 x 1.02 in)
Weight
73 g
N/A
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Black, White, Blue, Green, Purple, Red, Fuchsia
Black
Foldable
✗
✗
Connectivity
SIM
Dual 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
microUSB
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