Energizer E4
#10017
Yezz C21
#10024Category Breakdown
Energizer E4
Yezz C21
Performance
57.357.3
Camera
41.841.8
Display
48.348.3
Battery
43.543.5
Build
70.870.8
Overall
50.950.9
Summary
- The Energizer E4 features a slightly smaller 1.77-inch TFT display compared to the Yezz C21's 1.8-inch screen, both with a resolution of 128 x 160 pixels and similar pixel densities.
- In terms of performance, the E4 has a marginally lower CPU speed at 312 MHz versus the C21's 321 MHz, but both devices have 4GB of RAM and 4MB of storage.
- The camera capabilities are limited on both phones, with the E4 using a QVGA rear camera and the C21 utilizing a VGA camera, both lacking front-facing cameras.
- The E4 has a larger 1000 mAh battery compared to the C21's 600 mAh, which may contribute to longer usage times.
- Build quality shows the E4 is lighter at 65g, while the C21 weighs 70g and has slightly different dimensions.
- Lastly, the E4 includes a headphone jack, whereas the C21 does not, and the C21 has Bluetooth 2.1 compared to the E4's Bluetooth 2.0.
Side-by-side Specification Comparison
Energizer E4
Yezz C21
General
Release Date
2022
2016
Announced
2022
2016
Description
N/A
N/A
Display
Size
1.77"
1.8"
Type
TFT
TFT, 256K colors
Resolution
128 x 160 pixels (~116 ppi density)
128 x 160 pixels (~114 ppi density)
PPI
128
128
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Unisoc SC6531DA
Spreadtrum SC6531DA
CPU
312 MHz
321 Mhz
GPU
N/A
N/A
Memory
4MB
4MB 4MB RAM
Expandable Storage
✗
✗
Card Slot
microSDHC
microSDHC (dedicated slot)
Camera
Main Camera
N/A
N/A
Main Camera Details
QVGA
VGA
Front Camera
N/A
N/A
Front Camera Details
N/A
N/A
Video Recording
Yes
Yes
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
1000 mAh
600 mAh
Battery Details
Li-Ion 1000 mAh battery, removable
Li-Ion 600 mAh, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
115 x 46 x 13.5 mm (4.53 x 1.81 x 0.53 in)
113 x 48.5 x 14.6 mm (4.45 x 1.91 x 0.57 in)
Weight
65 g
70 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Black, Blue, Red, Gold, Silver
Black, White, Red, Blue
Foldable
✗
✗
Connectivity
SIM
Dual SIM (Mini-SIM, dual stand-by)
Dual SIM (Mini-SIM)
Network
GSM
GSM
Network Speed
No
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
2.0
2.1
NFC
✗
✗
USB
microUSB
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✗
Radio
✗
✗
Positioning
No
No
Software
Operating System
N/A
N/A
OS Version
N/A
N/A
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
No
N/A
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
No