Celkon A20
#7195
Celkon A402
#7073Category Breakdown
Celkon A20
Celkon A402
Performance
53.027.6
Camera
39.639.6
Display
16.934.1
Battery
15.218.9
Build
0.20.2
Connectivity
26.127.5
Audio
8.98.9
Overall
20.120.7
Summary
- The Celkon A20 and A402 both feature a 4.0" TFT display with a resolution of 480 x 800 pixels, but the A402 supports 256K colors, enhancing visual quality.
- In terms of performance, the A20 is equipped with a dual-core 1.2 GHz CPU and 256MB RAM, while the A402 offers a more capable Spreadtrum 7715 chipset and 4GB RAM, resulting in better multitasking.
- Both devices have a 3.15 MP rear camera, but the A402 includes a 1.3 MP front camera for selfies.
- The A20 has a 1500 mAh battery, whereas the A402 features a larger 2000 mAh battery, providing longer usage time.
- The A20 runs on Android 4.2.0, while the A402 benefits from an updated Android 4.4.2, offering a slightly improved software experience.
- The A402 is also heavier at 104g and comes in multiple color options compared to the A20's single black variant.
Side-by-side Specification Comparison
Celkon A20
Celkon A402
General
Release Date
2013
2015
Announced
2013
2015
Description
N/A
N/A
Display
Size
4"
4"
Type
TFT
TFT, 256K colors
Resolution
480 x 800 pixels, 5:3 ratio (~233 ppi density)
480 x 800 pixels, 5:3 ratio (~233 ppi density)
PPI
480
480
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
Spreadtrum 7715
CPU
Dual-core 1.2 GHz
1.2 GHz
GPU
N/A
Mali-400
Memory
256MB 512MB RAM
4GB 512MB RAM
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot)
microSDHC
Camera
Main Camera
3.15 MP
3.15 MP
Main Camera Features
N/A
LED flash
Front Camera
VGA
1.3 MP
Front Camera Features
N/A
N/A
Video Recording
Yes
Yes
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1500 mAh
2000 mAh
Battery Details
Li-Ion 1500 mAh battery
Li-Ion 2000 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
N/A
125.5 x 64 x 10.2 mm (4.94 x 2.52 x 0.40 in)
Weight
N/A
104 g
Materials
N/A
N/A
Colors
Black
White, Black, Blue, Silver
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Dual SIM (Mini-SIM)
Dual SIM
Network
GSM / HSPA
GSM / HSPA
Network Speed
Yes, 384 kbps
Yes, 384 kbps
5G
✗
✗
4G
✗
✗
WiFi
Wi-Fi 802.11 b/g/n
Wi-Fi 802.11 b/g/n
Bluetooth
Yes
4.0, A2DP
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
No
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 4.2.0 (Jelly Bean)
Android 4.4.2 (KitKat)
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Proximity, gyro
Accelerometer