Karbonn
Side-by-side technical data
Karbonn K309 Boombastic vs Karbonn Smart A12 Star
Compare up to four phones using typed, normalized technical data. Measurements stay numeric, capabilities stay boolean, and options stay comparable.
The verdict
Neither runs away with it: each wins something.
Which one is for you?
Karbonn K309 Boombastic, if you care about…
- Battery Capacity
- 1,500 mAh
- against 1,400 mAh
- Weight
- 85 g
- against 130 g
- Standby time
- 400 h
- against 300 h
Karbonn Smart A12 Star, if you care about…
- Display Technology
- IPS LCD
- against TFT LCD
- Body Thickness
- 10.1 mm
- against 15.2 mm
- Display Horizontal Resolution
- 480 px
- against 176 px
- Display Vertical Resolution
- 800 px
- against 220 px
Specification comparison
Battery
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 1,500 mAh Best value | 1,400 mAh |
| Battery Type | Li-Ion | Li-Ion |
| Fast Charge Power | — | — |
| Battery Features | — | — |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | 5 h | — |
| Standby time | 400 h Best value | 300 h |
| Music playback time | — | — |
Design
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| Body Colors | Black, Red | Black |
| Body Thickness | 15.2 mm | 10.1 mm Best value |
| Body Width | 49 mm | 64.2 mm |
| Body Height | 113 mm | 124.2 mm |
| Weight | 85 g Best value | 130 g |
| Usable Surface | — | 57.1 % |
| Body Materials | — | — |
| Resistance Features | — | — |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | — | — |
| QWERTY keyboard | — | — |
Performance
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| Processor Model | — | — |
| Processor Process Size | — | — |
| Graphics GPU | — | — |
| Storage Type | — | — |
| Maximum CPU Clock | — | 1.2 GHz |
| Maximum Storage Capacity | — | 4 GB |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | — | Dual-core 1.2 GHz |
| Processor Type | — | Dual-Core |
| 64-Bit Processor | — | — |
| RAM Capacity | — | 512 MB |
| RAM Type | — | — |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| Fingerprint Sensor Placement | — | — |
Display
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| Display Aspect Ratio | 4:5 | 5:3 |
| Peak Display Brightness | — | — |
| Display Technology | TFT LCD | IPS LCD Best value |
| Display Diagonal | — | 4″ |
| Display Horizontal Resolution | 176 px | 480 px Best value |
| Display Vertical Resolution | 220 px | 800 px Best value |
| Display Pixel Density | — | 233 ppi |
| Display Refresh Rate | — | — |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | — | — |
| Integrated Projector | No | No |
| Projector Brightness | — | — |
| Projector Horizontal Resolution | — | — |
| Projector Vertical Resolution | — | — |
| Cover display diagonal | — | — |
| Cover display refresh rate | — | — |
| Cover display peak brightness | — | — |
| Display colors | 65K colors | — |
Sensor
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| Sensor Features | — | Accelerometer, Proximity Sensor |
Software
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| Operating System | — | Android 4.4 |
| OS Family | — | Android |
| OS Version | — | 4 |
| OS Update Support | — | — |
| Direct OS Updates | — | — |
| Google Services | — | — |
| Web browser | — | — |
| Java (J2ME) | Yes | — |
Connectivity
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| SIM Configurations | Dual Mini-SIM | Dual Micro-SIM, Dual SIM Dual Standby |
| Cellular Bands | 2G GSM 900, 2G GSM 1800 | 2G GSM 900, 2G GSM 1800, 3G UMTS 2100 |
| Cellular Technologies | GSM, GPRS | GSM, HSPA Best value |
| Wi-Fi Standards | — | Wi-Fi 802.11 b/g/n |
| Wi-Fi Features | — | Wi-Fi Hotspot |
| Bluetooth Version | Bluetooth 2.0 | Bluetooth 2.0 |
| Bluetooth Profiles | — | — |
| Navigation Systems | — | GPS |
| Connectivity Features | FM Radio, microUSB | 3.5 mm Audio Jack, FM Radio, microUSB |
| USB Version | microUSB | microUSB |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | 0.75 W/kg Best value | 0.79 W/kg |
| SAR (EU) body | — | — |
| Messaging | SMS | — |
Audio
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| Microphone Count | — | — |
| Audio Features | Loudspeaker | Loudspeaker |
| Alert types | — | — |
Technical
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | K309 Boombastic | Smart A12 Star |
|---|---|---|
| Built-in functions | Audio/video player, Photo viewer, Organizer | — |
