Karbonn A4
$30
Overview
Karbonn A4 is a budget Android smartphone released in 2013 with a 4-inch TFT, powerful processor chipset, 3.15 main camera, and 1400 mAh battery.
Priced at $30, it targets users seeking budget performance.
Specifications of Karbonn A4
The display of Karbonn A4 measures 4 inches with TFT technology. Peak brightness reaches 250 nits for excellent outdoor visibility. The screen renders at 320x480 pixels resolution.
The camera system of Karbonn A4 features 1 rear cameras: 3.15 main. Video recording supports up to 720p.
The battery of Karbonn A4 has 1400mAh capacity with 5.0 wired charging. A full charge takes approximately 240 min minutes.
The memory of Karbonn A4 offers 1GB RAM. RAM uses DDR2 technology. Storage is 256MB 512MB.
The connectivity of Karbonn A4 includes 5G support, Wi-Fi Wi-Fi 802.11 b/g/n, hotspot, and Bluetooth Yes.
The build of Karbonn A4 weighs 75.0g with Plastic frame and Plastic back. Dimensions measure 124.8 x 66 x 9.5 mm.
The software of Karbonn A4 runs Android 2.3.6 (Gingerbread) with Stock Android.
Compare Karbonn A4
Frequently Asked Questions about Karbonn A4
Karbonn A4 has a 3.15 camera suitable for casual photography. For professional photography, consider phones with higher-resolution sensors.
Yes, Karbonn A4 supports 5G connectivity with both Sub-6GHz and mmWave bands for maximum network compatibility and fastest speeds. It works with major 5G carriers globally.
Karbonn A4 has a 1400mAh battery. Battery life varies based on usage patterns.
Karbonn A4 at $30 is a budget device. It's worth buying if you prioritize affordability over premium features.
Karbonn A4 supports 5.0 wired charging with full charge in approximately 240 min minutes.
Karbonn A4 has a 4-inch TFT with 60Hz refresh rate and 250 nits peak brightness.
Karbonn A4 in Category Rankings
See how Karbonn A4 ranks in these categories:
Verdict
The Karbonn A4 delivers practical value for users prioritizing affordability over premium features. Pick this phone for essential smartphone functionality, if you prioritize affordability while still needing core features.
Key Specifications
Display
4"
Main Camera
3.15
Chipset
Full Specifications
Network
| Technology | GSM / HSPA |
| 2G Bands | GSM / |
| 3G Bands | HSDPA 900 / 2100 |
| 4G LTE Bands | N/A |
| 5G Sub-6 Bands | [] |
| 5G mmWave Bands | [] |
| Speed | N/A |
| Carrier Aggregation | |
| SIM | Mini-SIM |
| Dual SIM Mode | Dual SIM |
| eSIM Support | |
| VoLTE Support | N/A |
| VoWiFi | N/A |
| NR CA Support |
Launch
| Announced | 2013 |
| Status | Discontinued |
| Availability | N/A |
| Model Variants | N/A |
| Launch Price | $80 |
Body & Design
| Dimensions (mm) | 124.8 x 66 x 9.5 mm |
| Weight (g) | 75.0 |
| Build Materials | Plastic |
| Frame | Plastic |
| Back Finish | Plastic |
| Colors | ["White/Black"] |
| IP Rating | N/A |
| Rugged Certifications | N/A |
| Ingress Gaskets | N/A |
| Form Factor | Bar |
| Hinge Type | N/A |
| Folded Dimensions | N/A |
| Thermal Solution | Passive |
| Notification/Alert | |
| Haptics | Basic |
Display
| Panel Type | TFT |
| Size (inches) | 4 |
| Resolution (px) | 320x480 pixels |
| Aspect Ratio | 8:5 |
| Pixel Density (ppi) | 149 |
| Screen-to-body Ratio (%) | 57.8 |
| Refresh Rate (Hz) | 60 |
| Adaptive Refresh Rate | |
| Touch Sampling Rate (Hz) | 120 |
| Peak Brightness (nits) | 250 |
| HDR Standards | N/A |
| Color Gamut | sRGB |
| Color Depth | 16 |
| PWM Dimming (Hz) | 200 |
| Glass Protection | N/A |
| Oleophobic Coating | N/A |
| Curvature | Flat |
| Always-on Display | |
| Display Driver IC | N/A |
| Cover Display |
Platform (SoC)
| OS at Launch | Android 2.3.6 (Gingerbread) |
| Update Policy | N/A |
| Chipset | N/A |
| CPU | N/A |
| GPU | N/A |
| NPU/AI TOPs | N/A |
| ISP Features | Basic |
| Modem | N/A |
| Wi-Fi/Bluetooth Chip | N/A |
| Throttling Behavior | N/A |
| Geekbench Single-Core | N/A |
| Geekbench Multi-Core | N/A |
| AnTuTu Score | 2000 |
| 3DMark Scores | N/A |
Memory & Storage
| RAM | 1GB |
| RAM Type | DDR2 |
| Storage | N/A |
| Storage Type | 256MB 512MB |
| Storage Speed | emmc-4.5 |
| Expandable Storage | microSDHC (dedicated slot) |
| Slot Type | microSD |
| USB OTG | |
| Filesystem Encryption | basic |
Main Camera System
| Rear Cameras | 1 |
| Main Sensor | 3.15 |
| Main Sensor Size | 1/4 inch |
| Main Sensor Model | N/A |
| Main Lens | f/2.8, 3.2mm |
| OIS | |
| Autofocus | AF |
| Pixel Binning | |
| Ultrawide | N/A |
| Telephoto | N/A |
| Macro | N/A |
| Depth/ToF/LiDAR | |
| Flicker/Color Sensors | N/A |
| Flash | LED |
| Video Resolution | 720p |
| HDR/Dolby Vision Video | |
| Video Codecs | h264 |
| Slow Motion | |
| Video Stabilization | N/A |
| Night Mode Features | |
| RAW/Pro Controls | N/A |
Selfie Camera
| Resolution | 2 |
| Sensor Size | 1/5 inch |
| Aperture | f/2.8 |
| AF/OIS | |
| Secondary Front Cam | |
| Front Flash | |
| Video | 480p |
| HDR/Dolby Vision | N/A |
| Face Unlock | N/A |
Audio
| Loudspeakers | |
| 3.5mm Jack | |
| Hi-Res Audio | |
| Spatial Audio / Dolby Atmos | |
| Microphones | 1 |
| Bluetooth Codecs | aac |
| DAC/Amp | N/A |
Connectivity
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot |
| Wi-Fi Features | Wi-Fi 802.11 b/g/n, hotspot |
| Bluetooth | |
| NFC | |
| IR Blaster | |
| UWB | N/A |
| Positioning | |
| Dual-Band GNSS | |
| FM Radio | |
| USB | N/A |
| Display Out | |
| eSIM Capacity |
Sensors
| Fingerprint Sensor | N/A |
| 3D Face ID | N/A |
| Accelerometer | |
| Gyroscope | |
| Magnetometer | |
| Proximity Sensor | |
| Ambient Light | |
| Barometer | |
| Thermo/Hygrometer | N/A |
| UV Sensor | N/A |
| Hall Sensor | |
| Color Temp Sensor | |
| Health Sensors | N/A |
| Satellite SOS |
Battery & Charging
| Capacity (mAh) | 1400 |
| Type | Li-Ion |
| Removable | |
| Endurance Rating | N/A |
| Wired Charging | 5.0 |
| Wired Standard | micro-usb |
| 0-50% Time (mins) | 120 min |
| Full Charge Time | 240 min |
| Wireless Charging | N/A |
| Wireless Standard | N/A |
| Reverse Wireless | N/A |
| Reverse Wired | |
| Charger in Box | 5w-charger |
| Battery Health Features | Basic |
Software
| OS at Launch | Android 2.3.6 (Gingerbread) |
| Update Window | N/A |
| UI Skin / Launcher | Stock Android |
| Feature Drops | N/A |
| App Cloning | N/A |
| Game Mode | |
| Privacy Features | Basic |
| Accessibility | Basic |
| Satellite Messaging UI |
Miscellaneous
| In-Box Contents | charger, manual, headset |
| Recycled Materials (%) | N/A |
| Repairability Score | N/A |
| Warranty | N/A |
Reviews & Ratings
186 ratings
Showing 3 of 186 reviews
Alex R.
2 weeks ago
Absolutely love the camera on this phone! The zoom is incredible and the photos are so crisp. Battery life is also a huge plus.
Ben C.
1 month ago
Great performance and beautiful display. My only complaint is that it feels a bit heavy, but you get used to it. Solid phone overall.
Chloe D.
3 months ago
The best phone I've ever owned. It's fast, the software is clean, and the build quality is top-notch. Highly recommend!