Overall Score
18.8Category Breakdown
Overall(#7445)18.8
Performance(#8564)27.9
Camera(#2086)39.6
Display(#7530)34.1
Battery(#6794)17.4
Build(#4361)0.2
Connectivity(#7833)25.0
Audio(#1963)8.9
Comparisons Featuring Karbonn A21
Short Review
- The Karbonn A21 features a simple design with a Pearl White finish, though specific dimensions and weight details are not provided.
- Its 4.5-inch TFT display offers a resolution of 480 x 800 pixels, resulting in a pixel density of approximately 207 ppi, which is adequate for basic tasks but lacks vibrancy.
- Performance is driven by a dual-core 1.2 GHz CPU and 4GB of RAM, allowing for decent multitasking capabilities despite the limited storage of 4GB.
- The rear camera is a 5 MP unit with autofocus, capable of capturing basic images, while the front-facing 1.3 MP camera is suitable for video calls.
- The 1800 mAh battery provides limited longevity, and there is no fast charging or wireless charging support.
- Running on Android 4.0 (Ice Cream Sandwich), the software experience may feel outdated compared to modern standards.
- Connectivity options include Wi-Fi 802.11 b/g/n and Bluetooth 2.1, but it lacks 5G and NFC capabilities.
- The absence of stereo speakers and the presence of a headphone jack are notable features.
- Overall, the Karbonn A21 is a basic smartphone with essential features suitable for light usage.
- Its performance and camera capabilities are functional but not competitive with more recent devices.
Specifications
General
Release Date2012
Announced2012
DescriptionN/A
Display
Size4.5"
TypeTFT, 256K colors
Resolution480 x 800 pixels, 5:3 ratio (~207 ppi density)
PPI480
Refresh Rate60Hz
HDR Support✗
ProtectionN/A
Performance
ChipsetN/A
CPUDual-core 1.2 GHz
GPUN/A
Memory4GB 512MB RAM
Expandable Storage✗
Card SlotmicroSDHC (dedicated slot)
Camera
Main Camera5 MP, AF
Main Camera FeaturesLED flash
Front Camera1.3 MP
Front Camera FeaturesN/A
Video RecordingYes
Selfie VideoN/A
Optical Stabilization✗
Night Mode✗
Raw Photo Support✗
Battery
Capacity1800 mAh
Battery DetailsLi-Ion 1800 mAh, removable
Charging DetailsN/A
Fast Charging✗
Wireless Charging✗
Build & Safety
DimensionsN/A
WeightN/A
MaterialsN/A
ColorsPearl White
Foldable✗
SARN/A
Connectivity
SIMDual SIM (Mini-SIM)
NetworkGSM / HSPA
Network SpeedHSPA 7.2/0.384 Mbps
5G✗
4G✗
WiFiWi-Fi 802.11 b/g/n
Bluetooth2.1, A2DP
NFC✗
USBmicroUSB 2.0
IR Blaster✗
Headphone Jack✓
Radio✗
PositioningGPS
Audio
Stereo Speakers✗
LoudspeakerYes
Audio JackYes
Software & Security
Operating SystemAndroid 4.0 (Ice Cream Sandwich)
Fingerprint✗
Face Unlock✗
SensorsAccelerometer, proximity