Karbonn A4
#7169
Samsung Comment 2 R390C
#8715Category Breakdown
Karbonn A4
Samsung Comment 2 R390C
Performance
36.336.1
Camera
39.62.5
Display
33.233.2
Battery
14.010.3
Build
0.215.9
Connectivity
27.08.3
Audio
8.98.9
Overall
20.214.3
Summary
- The Karbonn A4 features a larger 4.0-inch TFT display with a resolution of 320 x 480 pixels, offering a higher pixel density compared to the Samsung Comment 2 R390C's 2.4-inch display at 320 x 240 pixels.
- In terms of performance, both devices have 256MB of RAM, but the A4's higher resolution display may affect its performance.
- The A4 has a rear camera of 3.15 MP, superior to the 2 MP camera on the Comment 2, although neither offers advanced features like optical image stabilization.
- The A4 is equipped with a 1400 mAh battery, providing a longer usage time than the Comment 2's 1000 mAh battery.
- Both devices run on older software, with the A4 using Android 2.3.6, while the Comment 2 lacks a specified OS.
- Build quality-wise, the A4 is lighter at 75g compared to the 95g of the Comment 2, but the latter has a more compact design.
Side-by-side Specification Comparison
Karbonn A4
Samsung Comment 2 R390C
General
Release Date
2013
2012
Announced
2013
2012
Description
N/A
For CricketAlso known as Samsung Freeform 4 for U.S. Cellular
Display
Size
4"
2.4"
Type
TFT, 256K colors
TFT, 256K colors
Resolution
320 x 480 pixels, 3:2 ratio (~144 ppi density)
320 x 240 pixels, 4:3 ratio (~167 ppi density)
PPI
320
320
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
256MB 512MB
256MB
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
3.15 MP
2 MP
Main Camera Features
N/A
N/A
Front Camera
Yes
N/A
Front Camera Features
N/A
N/A
Video Recording
Yes
176x144
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1400 mAh
1000 mAh
Battery Details
Li-Ion 1400 mAh battery
Li-Ion 1000 mAh, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
124.8 x 66 x 9.5 mm (4.91 x 2.60 x 0.37 in)
110 x 61 x 10.9 mm (4.33 x 2.40 x 0.43 in)
Weight
75 g
95 g
Materials
N/A
N/A
Colors
White/Black
Black
Foldable
✗
✗
SAR
N/A
0.97 W/kg (head) 1.07 W/kg (body)
Connectivity
SIM
Dual SIM (Mini-SIM)
Mini-SIM
Network
GSM / HSPA
CDMA
Network Speed
HSPA
N/A
5G
✗
✗
4G
✗
✗
WiFi
Wi-Fi 802.11 b/g/n, hotspot
No
Bluetooth
Yes
2.1, A2DP
NFC
✗
✗
USB
Proprietary
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
No
No
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 2.3.6 (Gingerbread)
N/A
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer
N/A