Celkon A21
#6465
Samsung Galaxy Attain 4G
#5299Category Breakdown
Celkon A21
Samsung Galaxy Attain 4G
Performance
62.565.5
Camera
41.941.9
Display
57.057.0
Battery
43.543.5
Build
70.870.8
Overall
54.255.1
Summary
- The Celkon A21 features a 4.0-inch TFT display with a resolution of 320 x 480 pixels, while the Samsung Galaxy Attain 4G has a smaller 3.5-inch TFT display with the same resolution but a higher pixel density of approximately 165 ppi.
- In terms of performance, the A21 is powered by a quad-core 1.3 GHz Cortex-A7 processor, compared to the Attain's single-core 1.0 GHz CPU, which may result in better multitasking on the A21.
- Both devices have a 3.15 MP rear camera and a 1.3 MP front camera, providing similar photographic capabilities.
- The A21 has a 1500 mAh battery, while the Attain offers a slightly larger 1650 mAh battery, potentially providing longer usage time.
- The A21 runs on Android 4.2.2 (Jelly Bean), offering a more updated software experience compared to the Attain's Android 2.3 (Gingerbread).
- Overall, the A21 presents a better build quality and performance profile, while the Attain has a slightly more compact design and larger battery.
Side-by-side Specification Comparison
Celkon A21
Samsung Galaxy Attain 4G
General
Release Date
2014
2012
Announced
2014
2012
Description
N/A
For MetroPCSAlso known Samsung SCH-R920
Display
Size
4"
3.5"
Type
TFT
TFT, 256K colors
Resolution
320 x 480 pixels, 3:2 ratio (~144 ppi density)
320 x 480 pixels, 3:2 ratio (~165 ppi density)
PPI
320
320
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Mediatek MT6582 (28 nm)
N/A
CPU
Quad-core 1.3 GHz Cortex-A7
1.0 GHz
GPU
Mali-400MP2
N/A
Memory
512MB 256MB RAM
512MB RAM
Expandable Storage
✗
✗
Card Slot
microSDHC
microSDHC (dedicated slot)
Camera
Main Camera
3.15 MP
3.15 MP
Main Camera Details
3.15 MP
3.15 MP
Front Camera
1.3 MP
1.3 MP
Front Camera Details
1.3 MP
1.3 MP
Video Recording
Yes
Yes
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
1500 mAh
1650 mAh
Battery Details
Li-Ion 1500 mAh battery
Removable Li-Ion 1650 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
124.8 x 66.1 x 10.8 mm (4.91 x 2.60 x 0.43 in)
113.1 x 60.5 x 11.7 mm (4.45 x 2.38 x 0.46 in)
Weight
115.3 g
119.1 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Black, Blue, Red
Black
Foldable
✗
✗
Connectivity
SIM
Dual SIM (Dual stand-by)
Mini-SIM
Network
GSM / HSPA
CDMA / EVDO / LTE
Network Speed
HSPA
EV-DO Rev.A 3.1 Mbps, LTE
5G
✗
✗
4G
✗
✓
WiFi
Wi-Fi 802.11 b/g/n
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
4.0, A2DP
Yes
NFC
✗
✗
USB
microUSB
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
No
GPS, A-GPS
Software
Operating System
Android 4.2.2 (Jelly Bean)
Android 2.3 (Gingerbread)
OS Version
Android 4.2.2 (Jelly Bean)
Android 2.3 (Gingerbread)
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer
Accelerometer, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes