iPhone 12-128GB (PRE-OWNED)

Iphone 12

Iphone 12 mobile was launched on 13th October 2020. The phone comes with a 6.10-inch touchscreen display offering a resolution of 1170×2532 pixels at a pixel density of 460 pixels per inch (ppi). The display sports Other for protection. Iphone 12 is powered by a hexa-core Apple A14 Bionic processor. The Iphone 12 supports wireless charging, as well as proprietary fast charging.

As far as the cameras are concerned, the Iphone 12 on the rear packs a 12-megapixel (f/1.6) primary camera; a 12-megapixel (f/2.4) camera, and a 12-megapixel (f/2.0) camera. The rear camera setup has autofocus. It sports a 12-megapixel camera on the front for selfies with an f/2.2 aperture.

Iphone 12 is based on iOS 14 and packs 64GB of inbuilt storage. The Iphone 12 is a dual-SIM (GSM and GSM) mobile that accepts Nano-SIM and eSIM cards. The Iphone 12 measures 146.70 x 71.50 x 7.40mm (height x width x thickness) and weighs 189.00 grams. It was launched in Gold, Graphite, Pacific Blue, and Silver colours. It features an IP68 rating for dust and water protection.

Connectivity options on the Iphone 12 include Wi-Fi 802.11 a/b/g/n/ac/ax, GPS, Bluetooth v5.00, NFC, Lightning, 3G, 4G (with support for Band 40 used by some LTE networks in India) , and 5G. Sensors on the phone include accelerometer, ambient light sensor, barometer, gyroscope, proximity sensor, and compass/ magnetometer. The Iphone 12 supports face unlock with 3D face recognition.

Product Condition:

The Iphone 12, released in November 2020, remains one of the most impressive devices in Apple’s recent history. With a strong combination of powerful hardware, refined design, and versatile camera systems, the device continues to offer value well into 2025, especially for users seeking flagship features at a reduced price. Here’s a comprehensive breakdown of everything this premium device offers.

Unboxing and First Impressions

Apple has shifted toward minimalist and eco-conscious packaging in recent years, and the Iphone 12  reflects this philosophy. The box includes:

• The Iphone 12  handset
• USB-C to Lightning cable
• Documentation

Apple does not include a power adapter or EarPods in the box, citing environmental goals. This change may be inconvenient for users without a USB-C charger, but it aligns with Apple’s broader sustainability goals.

Design and Build Quality

The Iphone 12  features flat edges reminiscent of earlier iPhone models such as the iPhone 4 and 5, offering a classic yet modern aesthetic. Built with premium materials, it includes:

• Ceramic Shield front for added durability
• Textured matte glass on the back
• Surgical-grade stainless steel frame

The device measures 160.8 x 78.1 x 7.4 mm and weighs 228 grams. Despite its size and weight, it feels balanced and luxurious in hand. The phone is also IP68-rated, which means it can withstand submersion in up to 6 meters of water for 30 minutes. Available colors include Silver, Graphite, Gold, and Pacific Blue.

Display: Immersive Visual Experience

The Iphone 12  boasts a stunning 6.7-inch Super Retina XDR OLED display. This screen delivers impressive brightness and color accuracy, with specifications including:

• 2778 x 1284 resolution at 458 pixels per inch
• 2,000,000:1 contrast ratio
• Up to 800 nits of typical brightness, and up to 1200 nits for HDR content
• HDR10 and Dolby Vision support
• Wide color (P3) and True Tone

Despite not having a high refresh rate like 120Hz, the display performs excellently in all conditions—from watching HDR movies to editing photos and videos.

Performance and Hardware

The Iphone 12 is powered by Apple’s A14 Bionic chip, the first 5nm chipset used in a smartphone. It’s still powerful by 2025 standards, thanks to:

• A 6-core CPU (2 high-performance cores + 4 efficiency cores)
• 4-core Apple GPU
• 16-core Neural Engine for AI and machine learning
• 6 GB of RAM
• Storage options: 128 GB, 256 GB, and 512 GB NVMe

This hardware ensures fast app launches, smooth multitasking, and excellent gaming performance. It also supports the latest iOS versions, meaning software support will continue for at least a couple more years.

Camera System: Professional-Grade Photography

The Iphone 12  includes a triple-camera setup along with a LiDAR scanner. Each lens delivers impressive results across different lighting conditions:

• 12 MP wide camera with f/1.6 aperture and sensor-shift optical image stabilization
• 12 MP ultra-wide camera with f/2.4 aperture and 120-degree field of view
• 12 MP telephoto lens with f/2.2 aperture and 2.5x optical zoom
• LiDAR scanner for enhanced AR and faster autofocus in low light

The camera system supports Night mode, Deep Fusion, Smart HDR 3, and Dolby Vision HDR video recording (up to 60 fps). Whether you’re capturing daytime landscapes or dimly lit portraits, the results are crisp and vibrant.

On the front, the 12 MP TrueDepth camera offers similar performance, supporting 4K Dolby Vision HDR video, Night mode, and advanced portrait effects.

Battery Life and Charging

The device houses a 3687 mAh battery, delivering reliable day-long performance. Under typical usage, it offers:

• Up to 20 hours of video playback
• Up to 80 hours of audio playback
• 50% charge in about 30 minutes with a 20W charger (sold separately)
• Wireless charging via MagSafe up to 15W

The MagSafe system also supports accessories like wallets and cases that snap magnetically to the back of the phone.

Audio and Connectivity

The Iphone 12  supports stereo speakers with spatial audio and Dolby Atmos for a rich sound experience. Connectivity is also future-proof:

• 5G support (sub-6GHz and mmWave in supported regions)
• Wi-Fi 6 (802.11ax)
• Bluetooth 5.0
• Ultra-Wideband (UWB) chip for precision location features
• Dual SIM (nano-SIM and eSIM) support

There’s no 3.5mm headphone jack, and it uses Apple’s proprietary Lightning port for charging and data transfer.

Security and Sensors

The device uses Face ID for biometric authentication, offering fast and secure facial recognition. Additional sensors include:

• Accelerometer
• Gyroscope
• Proximity sensor
• Ambient light sensor
• Barometer

These enhance overall user experience, from AR apps to dynamic screen brightness adjustments.

Pricing and Availability in Bangladesh

As of May 2025, the Iphone 12  remains available in the Bangladeshi market, though newer models have since been released. Approximate pricing:

• 128 GB: ৳161,999
• 256 GB: ৳175,999
• 512 GB: ৳195,000

Prices vary depending on the retailer and any promotional offers or discounts.

Pros and Cons

Pros:

• Premium build with high-quality materials
• Large and vibrant OLED display
• Strong A14 Bionic performance
• Excellent camera system with professional features
• Long battery life and MagSafe support
• 5G and Wi-Fi 6 ready

Cons:

• Display limited to 60Hz refresh rate
• No power adapter or headphones included
• Slightly heavy for one-handed use
• No USB-C port (uses Lightning)

Even several years after its release, the Iphone 12 remains a top-tier choice for those who value build quality, camera versatility, and strong performance. While it lacks some modern features like a high-refresh-rate display and USB-C charging, it compensates with dependable software support, robust hardware, and an exceptional user experience. For users upgrading from older iPhones or switching from Android, it still represents a worthwhile investment in 2025.

How to Take Care of Your Mobile Phone in Daily Life: A Comprehensive Guide

In today’s digital era, mobile phones are not just devices; they are essential tools for communication, work, entertainment, and even personal organization. Given the critical role they play, taking care of your smartphone is more important than ever. Proper care ensures longevity, optimal performance, and a better user experience. This guide outlines comprehensive and practical tips on how to maintain and use your phone daily, and concludes with insights into both the advantages and disadvantages of mobile phone usage.

Use a Protective Case and Screen Protector:
One of the first things every mobile phone owner should do is invest in a high-quality protective case and a screen protector. These accessories are not just aesthetic; they are crucial for physical protection. Cases can absorb shock from accidental drops, while tempered glass protectors can prevent cracks and scratches on your screen.

Keep It Clean:
Phones accumulate dirt, dust, and bacteria quickly because they are handled frequently. Clean your phone regularly with a microfiber cloth and a gentle cleaner. Avoid using water or harsh chemicals. For ports and speakers, use a soft brush or compressed air to remove debris without damaging the components.

Avoid Overcharging:
Leaving your phone plugged in overnight or constantly charging it can shorten battery lifespan. Try to keep your battery level between 20% and 80%. Modern smartphones come with battery optimization features; enable them to preserve battery health.

Manage Apps and Storage
Unnecessary apps and large files can slow down your phone and take up precious storage. Periodically go through your apps and media files, deleting those you no longer need. Use cloud storage or external backups for photos and videos.

Use Trusted Chargers:
Always use certified and compatible charging cables and adapters. Cheap, uncertified chargers can damage your battery or even pose safety hazards. Using original or high-quality third-party accessories is essential for your device’s health.

Keep Software Updated:
Mobile phone manufacturers release regular software updates to improve performance, fix bugs, and patch security vulnerabilities. Enable automatic updates or check manually to ensure your phone is always running the latest version of its OS and apps.

Avoid Extreme Temperatures:
Smartphones are sensitive to temperature changes. Exposure to excessive heat can damage the battery, while extreme cold can temporarily shorten battery life. Avoid leaving your phone in direct sunlight or inside a car on a hot day. Similarly, don’t use your phone in freezing conditions for extended periods.

Secure Your Device:
Use password protection, fingerprint recognition, or facial recognition to secure your phone. Additionally, install a reputable security app to guard against malware and theft. Always be cautious when downloading apps and avoid clicking on suspicious links.

Handle With Care:
Avoid placing your phone in your back pocket, as sitting down can exert pressure and cause bending. Also, be cautious when placing your phone on hard or uneven surfaces. Always handle your device with care to prevent mechanical damage.

Use Battery Saving Features:
Enable battery saver mode when your battery is low or when you won’t have access to a charger for a while. Reduce screen brightness, disable background data usage for unnecessary apps, and turn off location services when not needed.

Backup Data Regularly:
Your phone stores valuable data like contacts, messages, and personal files. Back up your data regularly to the cloud or a computer to avoid loss due to theft, damage, or malfunction. Most phones offer built-in backup solutions; take advantage of them.

Avoid Water and Moisture:
Even if your phone claims to be water-resistant, prolonged exposure to water or high humidity can be damaging. Avoid using your phone in the rain or while swimming. If it gets wet, dry it immediately and avoid using it until completely dry.

Turn Off When Not in Use:
Restarting your phone regularly helps clear temporary files and refresh system performance. Additionally, consider turning off your phone during extended periods of non-use, such as overnight or while attending long meetings.

Important Tips From Usedbd:

1. Organize Your Home Screen and Settings: A cluttered home screen can slow you down. Organize your apps into folders and place frequently used ones on your main screen. Customize settings like notifications, Do Not Disturb mode, and shortcuts to suit your daily usage.

2. Optimize Connectivity Settings: Turn off Wi-Fi, Bluetooth, and GPS when not in use to save battery and reduce potential security risks. These features can be easily toggled on/off from your notification panel.

3. Monitor Device Health: Many phones come with built-in diagnostics or third-party apps that monitor device health, including battery condition, storage, and temperature. Use these tools to catch potential issues early.

4. Use Airplane Mode When Needed: If you’re in an area with weak signals, switch to airplane mode to save battery and prevent the phone from constantly searching for a network. This is also a good practice when charging your phone to speed up the process.

5. Practice Safe Browsing and Downloading: Be cautious about the websites you visit and the files you download. Avoid suspicious pop-ups, unknown sources, and insecure public Wi-Fi networks. These practices help prevent malware and phishing attacks.

6. Limit App Permissions: Check and manage app permissions regularly. Avoid granting unnecessary access to your location, contacts, camera, or microphone to apps that don’t need it. This not only preserves privacy but also conserves system resources.

7. Educate Yourself and Others: Stay updated on best practices for mobile phone care and share this knowledge with family and friends, especially children and elderly users who may be more prone to misuse.

The Pros and Cons of Smartphone Use: A Complete Guide

In the modern digital world, smartphones are indispensable. Whether for communication, entertainment, navigation, or work, mobile phones have evolved into essential tools that shape the way we live. However, with great utility comes significant impact—both positive and negative. This comprehensive blog will delve into the advantages and disadvantages of smartphones, offering insights into their role in our daily lives. We will also provide practical examples, list helpful points, and include recommendations to encourage balanced and mindful usage.

## Advantages of Smartphone Usage

1. Constant Connectivity:
Smartphones make it possible to stay connected at all times. Whether you’re on the go or across continents, communication is just a tap away. Messaging apps, video calls, and social media have transformed the way people maintain relationships.

2. Access to Information:
The internet is a treasure trove of knowledge, and smartphones provide instant access. From news updates to research articles, tutorials, and videos, learning is easier than ever. Students, professionals, and even hobbyists benefit from this real-time information access.

3. Improved Productivity:
Smartphones help streamline work processes. With apps for calendars, task lists, file sharing, and remote meetings, working from anywhere has become a reality. Time management tools and note-taking apps allow better organization and planning.

4. Entertainment at Your Fingertips:
Whether it’s streaming your favorite series, listening to music, playing games, or reading eBooks, smartphones are entertainment hubs. This is particularly helpful during commutes or while waiting in lines.

5. Navigation and Travel Assistance:
With GPS capabilities and apps like Google Maps, Waze, or City mapper, navigating unfamiliar places is now hassle-free. Travelers can also access translation tools, book rides, and explore local attractions effortlessly.

6. Health Monitoring and Fitness Tracking:
Modern smartphones come equipped with health monitoring features and support fitness apps. They track steps, monitor heart rate, and even suggest workouts, promoting a healthier lifestyle.

7. Emergency and Safety:
Having a smartphone during emergencies can be life-saving. Features like location sharing, SOS calling, and access to emergency contacts make smartphones essential for personal safety.

8. Financial Transactions and Online Shopping:
Mobile banking, digital wallets, and e-commerce apps simplify transactions. People can pay bills, transfer money, and shop online with minimal effort.

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## Disadvantages of Smartphone Usage

1. Digital Addiction:
One of the most significant downsides is dependency. The addictive nature of smartphones, driven by social media and gaming, can lead to excessive screen time and decreased productivity.

2. Physical Health Concerns:
Prolonged use can cause eyestrain, sleep disorders due to blue light exposure, and postural issues like “tech neck.” Many users overlook these effects until they become serious.

3. Reduced Attention Span:
Notifications, pop-ups, and constant switching between apps contribute to reduced focus. It becomes harder to concentrate on tasks or hold extended conversations.

4. Data Privacy and Security Risks:
Smartphones store sensitive information, making them targets for hackers. Phishing scams, malware, and data breaches are constant threats. Users need to be cautious about app permissions and suspicious links.

5. Social Disconnection:
Ironically, while smartphones connect us digitally, they can distance us socially. Overuse often leads to neglecting face-to-face interactions and weakening real-world relationships.

6. Financial Costs:
High-end smartphones are expensive, and maintaining them involves recurring costs—such as data plans, subscriptions, and accessory purchases.

Tips for Responsible Smartphone Use

To balance the pros and cons, adopting a mindful approach to smartphone use is key. Here are some helpful tips:

• Set Usage Limits: Use built-in features like screen time tracking to monitor and reduce usage.
• Turn Off Non-Essential Notifications: Only allow important alerts to prevent distraction.
• Create Phone-Free Zones: Establish spaces like dining areas or bedrooms where phone use is discouraged.
• Take Breaks: Follow the 20-20-20 rule—every 20 minutes, look at something 20 feet away for 20 seconds to reduce eye strain.
• Use Airplane Mode During Focused Tasks: Temporarily disable notifications while studying or working.
• Update Security Features Regularly: Use antivirus software, enable 2FA, and keep apps up to date.
• Avoid Late-Night Usage: The blue light from screens can disrupt sleep cycles. Use night mode or stop usage an hour before bed.
• Educate Children: Teach younger users about the safe and healthy use of smartphones.

Summary Table: The Good and the Bad

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