Category Breakdown
Energizer E29
Karbonn K451+ Sound Wave
Performance
3.35.3
Camera
39.639.6
Display
27.221.2
Battery
16.717.4
Build
0.20.2
Connectivity
10.69.4
Audio
8.98.9
Overall
17.112.5
Summary
- The Energizer E29 features a 2.8-inch TFT LCD display with a resolution of 240 x 320 pixels, while the Karbonn K451+ Sound Wave has a slightly smaller 2.4-inch TFT display with the same resolution but a higher pixel density of approximately 167 ppi.
- In terms of performance, both devices are limited with 0GB RAM, but the E29 is powered by a single-core Unisoc 6531E CPU, whereas the K451+ lacks specified performance metrics.
- The K451+ offers a 1.3 MP rear camera, providing better photographic capabilities compared to the E29's VGA camera.
- The E29 has a 1700 mAh battery, while the K451+ has a slightly larger 1800 mAh battery, which may provide marginally better longevity.
- Both phones lack advanced software features and connectivity options, with basic Bluetooth and microUSB support, and neither supports modern connectivity standards.
Side-by-side Specification Comparison
Energizer E29
Karbonn K451+ Sound Wave
General
Release Date
2023
2012
Announced
2023
2012
Description
N/A
N/A
Display
Size
2.8"
2.4"
Type
TFT LCD
TFT, 65K colors
Resolution
240 x 320 pixels, 4:3 ratio (~143 ppi density)
240 x 320 pixels, 4:3 ratio (~167 ppi density)
PPI
240
240
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Unisoc 6531E
N/A
CPU
Single-core 312 MHz
N/A
GPU
N/A
N/A
Memory
N/A
N/A
Expandable Storage
✗
✗
Card Slot
microSDHC
microSDHC (dedicated slot)
Camera
Main Camera
VGA
1.3 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
1700 mAh
1800 mAh
Battery Details
Li-Ion 1700 mAh battery
Li-Ion 1800 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
137.6 x 62.5 x 15.6 mm (5.42 x 2.46 x 0.61 in)
116.5 x 51.9 x 14.6 mm (4.59 x 2.04 x 0.57 in)
Weight
N/A
N/A
Materials
N/A
N/A
Colors
Black
Silver/Black
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Dual SIM (Mini-SIM)
Dual SIM (Mini-SIM)
Network
GSM
GSM
Network Speed
N/A
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
2.1
2.0
NFC
✗
✗
USB
microUSB
microUSB
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
N/A
N/A

