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Celkon A402 Specs Pricing Pros & Cons Unveiled

Release Date
2015, June
Camera
3MP
Battery
2000mAh
Processor
Spreadtrum 7715
Screen
4.0"
Storage
4GB 512MB RAM , microSDHC slot
Ram
512MB RAM
Operating System
Android 4.4.2

Introduction

The Celkon A402 is a smartphone that was announced and released in June 2015. Though discontinued now, it remains a notable device from the era of early Android phones. Understanding its specifications offers insight into the evolution of smartphone technology and helps appreciate the advancements that have occurred in the smartphone industry since then. This article explores the various features and specifications of the Celkon A402 in detail.

Design and Build

The Celkon A402 measures 125.5 x 64 x 10.2 mm (4.94 x 2.52 x 0.40 in) and weighs only 104 grams (3.67 oz), making it a lightweight and compact device easily portable in any pocket. It comes equipped with Dual SIM capability, accommodating two GSM networks which is particularly useful for users who need to manage separate business and personal lines.

The phone's body is available in four colors: White, Black, Blue, and Silver, offering a good range of options for style-conscious users. The design features soft rounded edges, providing a comfortable grip.

Display

The Celkon A402 is equipped with a 4.0-inch display with a resolution of 480 x 800 pixels, resulting in a pixel density of approximately 233 ppi. The screen-to-body ratio is around 56.7%, which is typical for devices of this era. The type of display used is a TFT screen capable of showcasing 256K colors, which provides adequate vibrancy and brightness for a budget smartphone.

Platform and Performance

Powered by a Spreadtrum 7715 chipset, the Celkon A402 houses a CPU clocked at 1.2 GHz alongside a Mali-400 GPU. Running on Android 4.4.2 KitKat, it delivers a reliable user experience for everyday tasks such as browsing, basic multimedia consumption, and social media. The phone comes with 512MB RAM, which, albeit modest, suffices for the basic multitasking expected from devices at the time.

Memory

The phone's internal memory is limited to 4GB, which can fill up quickly with apps and media. However, the presence of a microSDHC card slot allows users to expand storage capacity, ensuring there is ample space for additional apps, music, and photos.

Camera

On the photography front, the Celkon A402 features a 3.15 MP rear camera with an LED flash, capable of capturing basic images and video. The phone also includes a 1.3 MP front camera for selfies, which was a standard feature at the time of the phone's release. While the camera capabilities would be seen as limited by today’s standards, they provided reasonable performance for simple photography needs.

Battery Life

The device is powered by a Li-Ion 2000 mAh battery that offers decent battery life, allowing for several hours of talk time and stand-by duration typical for an entry-level device in its time. The battery is removable, providing users with the flexibility to replace the battery once its performance declines after extended use.

Connectivity and Networks

The Celkon A402 supports GSM and HSPA network technologies, facilitating 2G and 3G connectivity. The device operates on several frequencies : GSM 900/1800 for SIM 1 and SIM 2, and HSDPA 2100 for 3G connectivity. While it does not support 4G LTE, which is now the standard, the 3G capability ensures reasonable speeds of up to 384 kbps for web browsing and data usage.

The device incorporates Wi-Fi 802.11 b/g/n, Bluetooth 4.0 with A2DP, and positioning with GPS. The absence of NFC is a limitation, but the presence of FM radio and a microUSB 2.0 port provide additional functionality.

Sound and Sensors

The Celkon A402 houses a loudspeaker and a standard 3.5mm headphone jack, offering audio output options suited for multimedia consumption. It also features an accelerometer sensor, which aids in device orientation detection and basic motion sensing, supporting gaming applications and screen orientation changes.

Conclusion

The Celkon A402 is a product of its time, providing basic features and capabilities tailored towards budget-conscious consumers. Despite its discontinuation, the device marks a step in the ongoing evolution of smartphones, illustrating how far technology has come in a relatively short timeframe. For those interested in mobile technology history or collecting vintage gadgets, the Celkon A402 stands as a testament to the advancements and aspirations of past smartphone design.

Key Features of Celkon A402

  • Dual SIM support for flexible connectivity options
  • Compact design with dimensions of 125.5 x 64 x 10.2 mm and lightweight at 104 g
  • 4.0-inch TFT display with 480 x 800 pixels resolution for clear viewing
  • Powered by Android 4.4.2 (KitKat) for robust app support
  • 1.2 GHz processor with Mali-400 GPU for basic tasks and apps
  • Expandable storage via microSDHC card slot
  • Main camera of 3.15 MP with LED flash for basic photography needs
  • 1.3 MP front camera for video calls and selfies
  • FM radio support for entertainment on the go
  • Connectivity options including Wi-Fi 802.11 b/g/n, Bluetooth 4.0, and GPS
  • 2000 mAh Li-Ion battery for extended usage
  • Available in multiple colors: White, Black, Blue, Silver

Disadvantages of Celkon A402

  • Outdated OS: Android 4.4.2 (KitKat) which may not support new apps and security updates.
  • Limited Internal Storage: 4GB storage can quickly fill up, although expandable with microSDHC.
  • Low RAM: 512MB RAM can be insufficient for multitasking and handling modern apps effectively.
  • Basic Camera: 3.15 MP main camera and 1.3 MP front camera offer low image quality.
  • No LTE Support: Limited to GSM/HSPA, lacking faster LTE connectivity.
  • Discontinued Status: No longer supported by the manufacturer for repairs or updates.
  • No NFC: Missing feature for contactless payments or data exchange.
  • Basic Display: 4.0-inch TFT with low resolution may not be suitable for media consumption.
Network
Technology GSM / HSPA
2G bands GSM 900 / 1800 - SIM 1 & SIM 2
3G bands HSDPA 2100
Speed Yes, 384 kbps
Launch
Announced 2015, June. Released 2015, June
Status Discontinued
Body
Dimensions 125.5 x 64 x 10.2 mm (4.94 x 2.52 x 0.40 in)
Weight 104 g (3.67 oz)
SIM Dual SIM
Display
Type TFT, 256K colors
Size 4.0 inches, 45.5 cm2 (~56.7% screen-to-body ratio)
Resolution 480 x 800 pixels, 5:3 ratio (~233 ppi density)
Platform
OS Android 4.4.2 (KitKat)
Chipset Spreadtrum 7715
CPU 1.2 GHz
GPU Mali-400
Memory
Card slot microSDHC
Internal 4GB 512MB RAM
Main Camera
Single 3.15 MP
Features LED flash
Video Yes
Selfie camera
Single 1.3 MP
Video
Sound
Loudspeaker Yes
3.5mm jack Yes
Comms
WLAN Wi-Fi 802.11 b/g/n
Bluetooth 4.0, A2DP
Positioning GPS
NFC No
Radio FM radio
USB microUSB 2.0
Features
Sensors Accelerometer
Battery
Type Li-Ion 2000 mAh battery
Misc
Colors White, Black, Blue, Silver
SAR EU 0.46 W/kg (head)     0.82 W/kg (body)

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