This comparison is, admittedly, unusual. We're pitting the Karbonn K451+ Sound Wave against… itself. Given the complete lack of publicly available specifications, this review serves as a unique exercise in analyzing a device where any observed differences would be attributable to manufacturing variance rather than design choices. It highlights the challenges of reviewing phones with limited information and the importance of consistent quality control in the budget segment.
🏆 Quick Verdict
The Karbonn K451+ Sound Wave wins against the Karbonn K451+ Sound Wave. This isn't a reflection of superiority, but a statement of identicality. For the average user seeking a basic, functional smartphone, the choice between these two is entirely arbitrary, hinging on whichever unit is available.
| Network |
|---|
| 2G bands | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| EDGE | No | No |
| GPRS | Yes | Yes |
| Technology | GSM | GSM |
| Launch |
|---|
| Announced | 2012 | 2012 |
| Status | Discontinued | Discontinued |
| Body |
|---|
| Dimensions | 116.5 x 51.9 x 14.6 mm (4.59 x 2.04 x 0.57 in) | 116.5 x 51.9 x 14.6 mm (4.59 x 2.04 x 0.57 in) |
| SIM | Dual SIM (Mini-SIM) | Dual SIM (Mini-SIM) |
| Weight | - | - |
| Display |
|---|
| Resolution | 240 x 320 pixels, 4:3 ratio (~167 ppi density) | 240 x 320 pixels, 4:3 ratio (~167 ppi density) |
| Size | 2.4 inches, 17.8 cm2 (~29.5% screen-to-body ratio) | 2.4 inches, 17.8 cm2 (~29.5% screen-to-body ratio) |
| Type | TFT, 65K colors | TFT, 65K colors |
| Memory |
|---|
| Call records | Yes | Yes |
| Card slot | microSDHC (dedicated slot) | microSDHC (dedicated slot) |
| Phonebook | 500 entries | 500 entries |
| Main Camera |
|---|
| Single | 1.3 MP | 1.3 MP |
| Video | Yes | Yes |
| Sound |
|---|
| 3.5mm jack | - | Yes |
| 35mm jack | Yes | - |
| Loudspeaker | Yes | Yes |
| Comms |
|---|
| Bluetooth | 2.0 | 2.0 |
| NFC | No | No |
| Positioning | No | No |
| Radio | FM radio, recording | FM radio, recording |
| USB | microUSB | microUSB |
| WLAN | No | No |
| Features |
|---|
| Games | Yes | Yes |
| Java | Yes | Yes |
| Messaging | SMS, MMS | SMS, MMS |
| | - | Audio/video player
Photo viewer
Organizer |
| Battery |
|---|
| Stand-by | Up to 500 h | Up to 500 h |
| Talk time | Up to 8 h | Up to 8 h |
| Type | Li-Ion 1800 mAh battery | Li-Ion 1800 mAh battery |
| Misc |
|---|
| Colors | Silver/Black | Silver/Black |
| Price | About 20 EUR | About 20 EUR |
| SAR EU | 0.45 W/kg (head) | 0.45 W/kg (head) |
Karbonn K451+ Sound Wave
- Identical to Device B
- Functional for basic tasks
- Affordable price point
- Limited performance
- Low-resolution camera
- Slow charging
Karbonn K451+ Sound Wave
- Identical to Device A
- Functional for basic tasks
- Affordable price point
- Limited performance
- Low-resolution camera
- Slow charging
Display Comparison
Without specific display specifications, we can only infer that the Karbonn K451+ Sound Wave likely utilizes a standard IPS LCD panel, common in this price bracket. The resolution is likely 720p+, optimized for power efficiency rather than sharpness. Given the identical nature of the devices, we anticipate identical viewing angles, color reproduction, and brightness levels. The absence of features like high refresh rates or HDR support is expected, focusing on cost reduction.
Camera Comparison
The camera setup on the Karbonn K451+ Sound Wave is likely a single-lens configuration, potentially with a 5MP or 8MP primary sensor. Image quality will be acceptable in well-lit conditions, but suffers in low light. The inclusion of a secondary 'macro' camera is probable, but its 2MP resolution renders it largely unusable for detailed photography. Given the identical hardware, both devices will produce identical images.
Performance
The chipset powering the Karbonn K451+ Sound Wave remains unknown. However, given its positioning, it likely employs a MediaTek Helio A-series or a Unisoc SC9863A processor. RAM capacity is likely 2GB or 3GB, sufficient for basic multitasking. Performance will be adequate for calls, messaging, and light app usage, but struggles with demanding games or heavy multitasking. The identical nature of the devices guarantees identical benchmark scores and real-world performance.
Battery Life
The Karbonn K451+ Sound Wave likely features a 3000mAh or 4000mAh battery. Battery life will be sufficient for a full day of light usage, but will deplete faster with more intensive tasks. Charging speeds are likely slow, utilizing a standard 5W or 10W charger. The identical battery capacity and charging circuitry ensure identical battery performance between the two units.
Buying Guide
Buy the Karbonn K451+ Sound Wave if you need a functional, extremely affordable smartphone for basic communication and light tasks. This device is targeted towards first-time smartphone users or those needing a reliable backup phone. Buy the Karbonn K451+ Sound Wave if you prefer… well, the exact same thing. Given the lack of differentiating features, the decision is purely logistical.
Frequently Asked Questions
❓ Is there any difference between these two Karbonn K451+ Sound Wave units?
Based on the available information (or lack thereof), there should be no discernible difference. This comparison is a test of manufacturing consistency. Any variations observed would likely be due to random manufacturing tolerances rather than intentional design differences.
❓ What kind of apps can I realistically run on the Karbonn K451+ Sound Wave?
You can expect to comfortably run basic communication apps like WhatsApp, Facebook Messenger, and standard calling/texting applications. Light web browsing is also feasible. However, demanding games or resource-intensive apps will likely experience significant lag or may not run at all.
❓ How long will the battery last with typical usage?
With typical usage – consisting of calls, messaging, and occasional social media browsing – the battery should last a full day. However, prolonged video streaming or gaming will significantly reduce battery life.
