Karbonn KT21 Express
#10084
Philips X525
#9718Category Breakdown
Karbonn KT21 Express
Philips X525
Performance
5.324.3
Camera
39.68.7
Display
15.226.3
Battery
10.315.9
Build
0.20.2
Connectivity
9.111.1
Audio
8.98.9
Overall
10.711.6
Summary
- The Karbonn KT21 Express features a 2.8-inch TFT display with a resolution of 240 x 320 pixels, while the Philips X525 has a slightly larger 3.0-inch TFT resistive touchscreen with a resolution of 240 x 400 pixels, offering a better pixel density.
- In terms of performance, the KT21 has no RAM or storage specifications, whereas the X525 includes 44MB of storage and 44GB of RAM, indicating a more capable performance.
- Both devices have a 3.15 MP rear camera, but the X525 supports QCIF video recording, while the KT21 does not specify video quality.
- The battery capacity of the KT21 is 1000 mAh, significantly lower than the X525's 1530 mAh, suggesting longer usage time for the latter.
- Both phones lack advanced software features, with no specified operating systems, but both include a headphone jack and do not support wireless charging.
Side-by-side Specification Comparison
Karbonn KT21 Express
Philips X525
General
Release Date
2012
2011
Announced
2012
2011
Description
N/A
N/A
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
44MB
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
3.15 MP
3.15 MP
Main Camera Features
LED flash
LED flash
Front Camera
N/A
N/A
Front Camera Features
N/A
N/A
Video Recording
Yes
QCIF
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1000 mAh
1530 mAh
Battery Details
Li-Ion 1000 mAh, removable
Removable Li-Ion 1530 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
N/A
160 x 51 x 14.4 mm (6.30 x 2.01 x 0.57 in)
Weight
N/A
108 g
Materials
N/A
N/A
Colors
Black
Silver
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Dual SIM (Mini-SIM)
Dual SIM (Mini-SIM, dual stand-by)
Network
No cellular connectivity
GSM
Network Speed
N/A
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
2.0
2.1, A2DP
NFC
✗
✗
USB
microUSB
miniUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
No
No
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