Acer Liquid Z4
#8608
Karbonn A21
#7445Category Breakdown
Acer Liquid Z4
Karbonn A21
Performance
35.827.9
Camera
15.439.6
Display
16.934.1
Battery
16.317.4
Build
0.20.2
Connectivity
25.225.0
Audio
8.98.9
Overall
14.618.8
Summary
- The Acer Liquid Z4 features a compact build with a 4.0-inch TFT display, while the Karbonn A21 has a slightly larger 4.5-inch TFT screen, both offering a resolution of 480 x 800 pixels.
- In terms of performance, the Liquid Z4 is powered by a Mediatek MT6572 chipset with a dual-core 1.3 GHz CPU, compared to the A21's dual-core 1.2 GHz processor.
- Both devices have a 5 MP rear camera and a 1.3 MP front camera, but the A21 supports video recording, while the Liquid Z4 is limited to 720p at 30fps.
- The Liquid Z4 has a smaller 1630 mAh battery, whereas the A21 offers a 1800 mAh capacity, potentially providing longer usage.
- Both smartphones run on older versions of Android, with the Liquid Z4 on Android 4.2.2 and the A21 on Android 4.0, impacting the software experience.
Side-by-side Specification Comparison
Acer Liquid Z4
Karbonn A21
General
Release Date
2014
2012
Announced
2014
2012
Description
Available as Acer Liquid Z4 Duo with dual-SIM card slots
N/A
Display
Size
4"
4.5"
Type
TFT
TFT, 256K colors
Resolution
480 x 800 pixels, 5:3 ratio (~233 ppi density)
480 x 800 pixels, 5:3 ratio (~207 ppi density)
PPI
480
480
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Mediatek MT6572 (28 nm)
N/A
CPU
Dual-core 1.3 GHz Cortex-A7
Dual-core 1.2 GHz
GPU
Mali-400
N/A
Memory
4GB 512MB RAM
4GB 512MB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
5 MP, AF
5 MP, AF
Main Camera Features
LED flash
LED flash
Front Camera
1.3 MP
1.3 MP
Front Camera Features
N/A
N/A
Video Recording
720p@30fps
Yes
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1630 mAh
1800 mAh
Battery Details
Li-Ion 1630 mAh, removable
Li-Ion 1800 mAh, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
124 x 64 x 9.7 mm (4.88 x 2.52 x 0.38 in)
N/A
Weight
122 g
N/A
Materials
N/A
N/A
Colors
Black/White
Pearl White
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
Dual SIM (Mini-SIM)
Network
GSM / HSPA
GSM / HSPA
Network Speed
HSPA
HSPA 7.2/0.384 Mbps
5G
✗
✗
4G
✗
✗
WiFi
Wi-Fi 802.11 b/g/n, hotspot
Wi-Fi 802.11 b/g/n
Bluetooth
4.0, A2DP
2.1, A2DP
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
No
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 4.2.2 (Jelly Bean)
Android 4.0 (Ice Cream Sandwich)
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, proximity
Accelerometer, proximity