Karbonn KT21 Express
#10084
Pantech Crux
#9356Category Breakdown
Karbonn KT21 Express
Pantech Crux
Performance
5.35.3
Camera
39.639.6
Display
15.226.3
Battery
10.31.6
Build
0.215.2
Connectivity
9.118.8
Audio
8.98.9
Overall
10.712.5
Summary
- The Karbonn KT21 Express features a 2.8-inch TFT display with a resolution of 240 x 320 pixels, while the Pantech Crux has a slightly larger 3.0-inch TFT resistive touchscreen with a resolution of 240 x 400 pixels, offering a different aspect ratio and pixel density.
- Both phones have a 3.15 MP rear camera with video capabilities, but neither has optical image stabilization or a front-facing camera.
- In terms of performance, both devices lack RAM and advanced processing capabilities, limiting their multitasking abilities.
- The KT21 Express is powered by a 1000 mAh battery, whereas the Crux's battery capacity is unspecified.
- The Crux is heavier at 122g compared to the KT21 Express, which does not have a listed weight, and both devices lack modern connectivity options like WiFi and 5G.
- Both run on unspecified software but include a headphone jack.
Side-by-side Specification Comparison
Karbonn KT21 Express
Pantech Crux
General
Release Date
2012
2010
Announced
2012
2010
Description
N/A
For Verizon
Display
Size
2.8"
3"
Type
TFT
TFT resistive touchscreen, 256K colors
Resolution
240 x 320 pixels, 4:3 ratio
240 x 400 pixels, 5:3 ratio (~155 ppi density)
PPI
240
240
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
N/A
N/A
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
3.15 MP
3.15 MP
Main Camera Features
LED flash
N/A
Front Camera
N/A
N/A
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
1000 mAh
N/A
Battery Details
Li-Ion 1000 mAh, removable
Removable Li-Ion battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
N/A
109 x 58 x 13 mm (4.29 x 2.28 x 0.51 in)
Weight
N/A
122 g
Materials
N/A
N/A
Colors
Black
Gray
Foldable
✗
✗
SAR
N/A
1.25 W/kg (head) 0.61 W/kg (body)
Connectivity
SIM
Dual SIM (Mini-SIM)
Mini-SIM
Network
No cellular connectivity
CDMA / EVDO
Network Speed
N/A
EV-DO Rev.0, 153.2 Kbps
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
2.0
2.1, A2DP
NFC
✗
✗
USB
microUSB
2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
No
GPS, A-GPS, VZ Navigator
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
N/A
N/A
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Proximity
N/A