Category Breakdown
NIU GO 20
VK Mobile VK4000
Performance
22.632.0
Camera
2.50.0
Display
19.530.6
Battery
3.41.6
Build
0.20.2
Connectivity
6.88.5
Audio
8.90.0
Overall
8.38.7
Summary
- The NIU GO 20 features a compact build with dimensions of 101 x 43.8 x 14 mm and a weight of 60g, while the VK Mobile VK4000 is slightly smaller and heavier at 85 x 43 x 21 mm and 79g.
- Both devices have a 1.8" TFT display with the same resolution, but the VK4000 supports 256K colors compared to the 65K colors of the GO 20.
- In terms of performance, the VK4000 offers 128MB of RAM, significantly more than the 32MB in the GO 20.
- Both phones have a VGA rear camera with no front camera, and neither supports video recording.
- The GO 20 is equipped with a 500mAh battery, while the VK4000's battery capacity is unspecified.
- Both devices lack advanced software features, with no stereo speakers or headphone jacks present.
Side-by-side Specification Comparison
NIU GO 20
VK Mobile VK4000
General
Release Date
2013
2006
Announced
2013
2006
Description
Single SIM: GO 20CDual SIM: GO 20
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
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 (dedicated slot)
Yes
Camera
Main Camera
VGA
VGA
Main Camera Features
N/A
N/A
Front Camera
N/A
N/A
Front Camera Features
N/A
N/A
Video Recording
N/A
No
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
500 mAh
N/A
Battery Details
Li-Ion 500 mAh, removable
Removable Li-Ion battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
101 x 43.8 x 14 mm (3.98 x 1.72 x 0.55 in)
85 x 43 x 21 mm (3.35 x 1.69 x 0.83 in)
Weight
60 g
79 g
Materials
N/A
N/A
Colors
Black, White, Silver, Purple, Blue, Red
Black
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Dual SIM (Mini-SIM)
Mini-SIM
Network
GSM
GSM
Network Speed
N/A
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
2.1
Yes
NFC
✗
✗
USB
Proprietary
Proprietary
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
No
No
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
No
Audio Jack
No
No
Software & Security
Operating System
N/A
N/A
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
N/A

