Karbonn Karbonn K9 Smart Eco
$40.59
Overview
Karbonn Karbonn K9 Smart Eco is a budget Android smartphone released in 2017 with a 5-inch TFT, Spreadtrum SC7731G chipset, 1.9 main camera, and 2300 mAh battery.
Priced at $40.59, it targets users seeking budget performance.
Specifications of Karbonn Karbonn K9 Smart Eco
The display of Karbonn Karbonn K9 Smart Eco measures 5 inches with TFT technology. Peak brightness reaches 300 nits for excellent outdoor visibility. The screen renders at 480x854 resolution.
The camera system of Karbonn Karbonn K9 Smart Eco features 1 rear cameras: 1.9 main. Video recording supports up to 7p.
The battery of Karbonn Karbonn K9 Smart Eco has 2300mAh capacity with 5 wired charging. A full charge takes approximately 240 min minutes.
The performance of Karbonn Karbonn K9 Smart Eco is powered by the Spreadtrum SC7731G chipset with ARM Mali-400 MP2 400MHz GPU. AnTuTu benchmark achieves 12467.
The connectivity of Karbonn Karbonn K9 Smart Eco includes 5G support, Wi-Fi Wi-Fi 802.11 b/g/n, and Bluetooth 3.0.
The build of Karbonn Karbonn K9 Smart Eco weighs 156g with Plastic frame and Plastic back. Dimensions measure 145 x 72 x 11 mm.
The software of Karbonn Karbonn K9 Smart Eco runs Android 4.0 (Ice Cream Sandwich).
Compare Karbonn Karbonn K9 Smart Eco
Frequently Asked Questions about Karbonn Karbonn K9 Smart Eco
Karbonn Karbonn K9 Smart Eco has a 1.9 camera suitable for casual photography. For professional photography, consider phones with higher-resolution sensors.
Karbonn Karbonn K9 Smart Eco with Spreadtrum SC7731G can handle casual gaming. For intensive gaming, consider phones with flagship chipsets.
Yes, Karbonn Karbonn K9 Smart Eco 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 Karbonn K9 Smart Eco has a 2300mAh battery. Battery life varies based on usage patterns.
Karbonn Karbonn K9 Smart Eco at $40.59 is a budget device. It's worth buying if you prioritize affordability over premium features.
Karbonn Karbonn K9 Smart Eco supports 5 wired charging with full charge in approximately 240 min minutes.
Karbonn Karbonn K9 Smart Eco is available in 4GB storage options. Storage is not expandable, so choose your capacity based on your needs.
Karbonn Karbonn K9 Smart Eco has a 5-inch TFT with 60Hz refresh rate and 300 nits peak brightness. HDR support includes No.
Karbonn Karbonn K9 Smart Eco in Category Rankings
See how Karbonn Karbonn K9 Smart Eco ranks in these categories:
Verdict
The Karbonn Karbonn K9 Smart Eco 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
5"
Main Camera
1.9
Chipset
Spreadtrum SC7731G
Full Specifications
Network
| Technology | GSM / HSPA |
| 2G Bands | GSM / |
| 3G Bands | HSDPA 850 / 1700 / 1900 / 2100 - USA model |
| 4G LTE Bands | N/A |
| 5G Sub-6 Bands | [] |
| 5G mmWave Bands | [] |
| Speed | N/A |
| Carrier Aggregation | |
| SIM | Mini-SIM |
| Dual SIM Mode | dual-standby |
| eSIM Support | |
| VoLTE Support | N/A |
| VoWiFi | N/A |
| NR CA Support |
Launch
| Announced | 2017 |
| Status | Out of Stock |
| Availability | N/A |
| Model Variants | N/A |
| Launch Price | $40.59 |
Body & Design
| Dimensions (mm) | 145 x 72 x 11 mm |
| Weight (g) | 156 |
| Build Materials | Plastic |
| Frame | Plastic |
| Back Finish | Plastic |
| Colors | ["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 | N/A |
| Notification/Alert | |
| Haptics | ERM |
Display
| Panel Type | TFT |
| Size (inches) | 5 |
| Resolution (px) | 480x854 |
| Aspect Ratio | 2:3 |
| Pixel Density (ppi) | 196 |
| Screen-to-body Ratio (%) | 66 |
| Refresh Rate (Hz) | 60 |
| Adaptive Refresh Rate | |
| Touch Sampling Rate (Hz) | 120 |
| Peak Brightness (nits) | 300 |
| HDR Standards | |
| Color Gamut | sRGB |
| Color Depth | 16 |
| PWM Dimming (Hz) | N/A |
| 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 4.0 (Ice Cream Sandwich) |
| Update Policy | N/A |
| Chipset | Spreadtrum SC7731G |
| CPU | Quad-core 1.3 GHz |
| GPU | ARM Mali-400 MP2 400MHz |
| NPU/AI TOPs | N/A |
| ISP Features | Basic |
| Modem | Spreadtrum SC7731G |
| Wi-Fi/Bluetooth Chip | N/A |
| Throttling Behavior | N/A |
| Geekbench Single-Core | N/A |
| Geekbench Multi-Core | N/A |
| AnTuTu Score | 12467 |
| 3DMark Scores | N/A |
Memory & Storage
| RAM | N/A |
| RAM Type | LPDDR3 |
| Storage | 4GB |
| Storage Type | eMMC |
| Storage Speed | eMMC 5.1 |
| Expandable Storage | microSDHC (dedicated slot) |
| Slot Type | microSD |
| USB OTG | |
| Filesystem Encryption | basic |
Main Camera System
| Rear Cameras | 1 |
| Main Sensor | 1.9 |
| Main Sensor Size | CMOS |
| Main Sensor Model | N/A |
| Main Lens | f/2.8, 3.5mm |
| OIS | |
| Autofocus | fixed-focus |
| Pixel Binning | 2.2 um |
| Ultrawide | N/A |
| Telephoto | N/A |
| Macro | N/A |
| Depth/ToF/LiDAR | |
| Flicker/Color Sensors | N/A |
| Flash | LED |
| Video Resolution | 7p |
| HDR/Dolby Vision Video | |
| Video Codecs | H.264 |
| Slow Motion | |
| Video Stabilization | |
| Night Mode Features | |
| RAW/Pro Controls | N/A |
Selfie Camera
| Resolution | 1.9 |
| Sensor Size | CMOS |
| Aperture | f/2.8 |
| AF/OIS | N/A |
| 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 |
| Wi-Fi Features | Wi-Fi 802.11 b/g/n |
| Bluetooth | 3.0 |
| NFC | |
| IR Blaster | |
| UWB | N/A |
| Positioning | GPS |
| Dual-Band GNSS | |
| FM Radio | |
| USB | 2.0 |
| 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) | 2300 |
| Type | Li-Polymer |
| Removable | |
| Endurance Rating | N/A |
| Wired Charging | 5 |
| 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 7 |
| Update Window | N/A |
| UI Skin / Launcher | N/A |
| Feature Drops | N/A |
| App Cloning | N/A |
| Game Mode | |
| Privacy Features | Basic |
| Accessibility | Basic |
| Satellite Messaging UI |
Miscellaneous
| In-Box Contents | charger, manual, warranty-card |
| 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!
Karbonn Karbonn K9 Smart Eco Review: Solid Performance for the Price
Our comprehensive review of the Karbonn Karbonn K9 Smart Eco covers display quality, camera performance, battery life, and overall value. A solid choice in its price segment.
- + Excellent value for money
- - Display could be brighter or smoother
- - Performance may struggle with demanding tasks